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Absolute dielectric permittivity of free space
Vacuum permittivity, commonly denoted ε0 (pronounced "epsilon nought" or "epsilon zero"), is the value of the absolute dielectric permittivity of classical
Vacuum_permittivity
Measure of the electric polarizability of a dielectric material
In electromagnetism, the absolute permittivity, often simply called permittivity and denoted by the Greek letter ε (epsilon), is a measure of the electric
Permittivity
Measure of the electric polarizability of a dielectric, compared with that of a vacuum
permittivity (in older texts, dielectric constant) is the permittivity of a material expressed as a ratio with the electric permittivity of a vacuum.
Relative_permittivity
Physical constant
was called the permeability of vacuum. Another, now rather rare and obsolete, term is "magnetic permittivity of vacuum". See, for example, Servant et
Vacuum_permeability
Speed of electromagnetic waves in vacuum
between c and the vacuum permittivity ε0 and vacuum permeability μ0 established by Maxwell's theory: c2 = 1/(ε0μ0). The vacuum permittivity may be determined
Speed_of_light
Topics referred to by the same term
type of ordinal number ε0, in physics, vacuum permittivity, the absolute dielectric permittivity of classical vacuum E0 (cipher), a cipher used in the Bluetooth
E0
Ability of magnetization
Kelvin in 1872, and is used alongside its electrostatic equivalent, permittivity, coined by Oliver Heaviside in 1885. The reciprocal of permeability is
Permeability (electromagnetism)
Permeability_(electromagnetism)
Physical model of propagating energy
speed of light in vacuum. Thus Maxwell's equations connect the vacuum permittivity ε 0 {\displaystyle \varepsilon _{0}} , the vacuum permeability μ 0 {\displaystyle
Electromagnetic_radiation
Equations describing classical electromagnetism
density, ε 0 {\displaystyle \varepsilon _{0}} the vacuum permittivity, μ 0 {\displaystyle \mu _{0}} the vacuum permeability, ∇ ⋅ {\displaystyle \nabla \cdot
Maxwell's_equations
Space that is empty of matter
dielectric permittivity of the vacuum of classical electromagnetism is changed. For example, see Zeidler, Eberhard (2011). "§ 19.1.9 Vacuum polarization
Vacuum
Quantum state with the lowest possible energy
term in the vacuum, resulting in a field-dependent electrical permittivity ε deviating from the nominal value ε0 of vacuum permittivity. These theoretical
Quantum_vacuum_state
Energy held by an object because of its position relative to other objects
{r}} } is a vector of length 1 pointing from Q to q and ε0 is the vacuum permittivity. The work W required to move q from A to any point B in the electrostatic
Potential_energy
Lowest possible energy of a quantum system or field
electronic charge and ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity)) we can form a dimensionless quantity called the fine-structure
Zero-point_energy
Measure of directional electromagnetic energy flux
|^{2}+{\frac {1}{\mu _{0}}}|\mathbf {B} |^{2}\right)\!,} where ε0 is the vacuum permittivity. It can be derived directly from Maxwell's equations in terms of
Poynting_vector
Units of measurement based on universal physical constants
mass, ħ is the reduced Planck constant, and ε0 is the vacuum permittivity. The vacuum permittivity ε0 is implicitly used as a nondimensionalization constant
Natural_units
Electric and magnetic fields produced by moving charged objects
change by switching the permeability and permittivity of free space with the permeability and permittivity of the linear material in question. Inside
Electromagnetic_field
Units defined only by physical constants
either the Coulomb constant k e {\displaystyle k_{\text{e}}} or the vacuum permittivity ε 0 {\displaystyle \varepsilon _{0}} is normalized to 1. Thus, depending
Planck_units
Study of still or slow electric charges
induction, separation of charges due to electric fields. Permittivity and relative permittivity, the electric polarizability of materials. Quantization
Electrostatics
Concept in philosophy and early physics
Inertia Lamb shift QCD vacuum QED vacuum Quantum fluctuation Quantum vacuum state Spontaneous emission Vacuum Vacuum permittivity Vacuum Rabi oscillation Spinoza's
Horror_vacui_(philosophy)
Compact astronomical body
{\displaystyle M} , where ϵ 0 {\displaystyle \epsilon _{0}} is the vacuum permittivity constant, c {\displaystyle c} is the speed of light and G {\displaystyle
Black_hole
Physical constants of energy and wavenumber
_{0}} is the permittivity of free space, h {\displaystyle h} is the Planck constant, and c {\displaystyle c} is the speed of light in vacuum. The symbol
Rydberg_constant
System of measurement
chemistry. In 1973 McWeeny extended the system of Shull and Hall by adding permittivity in the form of κ 0 = 4 π ϵ 0 {\displaystyle \kappa _{0}=4\pi \epsilon
Atomic_units
Moving charge energy loss formula found by Hans Bethe
formula reads, in SI units: where c is the speed of light and ε0 the vacuum permittivity, β = v c {\displaystyle \beta ={\frac {v}{c}}} , e and me the electron
Bethe_formula
Rapid oscillations of electron density
effective mass, and ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity. This assumes infinite ion mass, a good approximation since electrons
Plasma_oscillation
Power transferred per unit area
speed of light in vacuum, n is the refractive index of the medium, and ϵ 0 {\displaystyle \epsilon _{0}} is the vacuum permittivity. The relationship
Intensity_(physics)
Variant of the centimetre–gram–second unit system
{\displaystyle \varepsilon } is the permittivity; ε 0 {\displaystyle \varepsilon _{0}} is the permittivity of vacuum (used in the SI system, but meaningless
Gaussian_units
constant: R∞ = 10973731.568157(12) m−1 Speed of light in vacuum: c = 299792458 m⋅s−1 Vacuum permittivity: ε0 = 8.8541878188(14)×10−12 F⋅m−1 6378.137, the average
List_of_numbers
Phenomenon in condensed matter physics
is the Boltzmann constant, qe is the Elementary charge, ε0 is the vacuum permittivity, and AG is the product of a universal constant A0 multiplied by a
Schottky_effect
Unit of measurement adopted by convention for a base quantity
in which c = 1 and ħ = 1. A similar choice can be applied to the vacuum permittivity, ε0. One could eliminate either the metre or the second by setting
Base_unit_of_measurement
Foundational law of electromagnetism relating electric field and charge distributions
_{0}}}} where ∇ · E is the divergence of the electric field, ε0 is the vacuum permittivity and ρ is the total volume charge density (charge per unit volume)
Gauss's_law
Types of energy range in a solid where no electron states can exist
ϵ 0 {\displaystyle \epsilon _{0}} is the vacuum permittivity λ 0 {\displaystyle \lambda _{0}} is the vacuum wavelength for light of frequency ν {\displaystyle
Direct_and_indirect_band_gaps
Ability of a body to store an electrical charge
those conductors, and the permittivity of any dielectric material between them. For many dielectric materials, the permittivity, and thus the capacitance
Capacitance
Physical field surrounding an electric charge
{\displaystyle \mu _{0}} is the vacuum permeability, and ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity. Both the electric current density
Electric_field
Vector field related to displacement current and flux density
} where ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity (also called permittivity of free space), E is the electric field, and P is the
Electric_displacement_field
Measure of radiant energy over surface area
propagation; c is the speed of light in vacuum; μ0 is the vacuum permeability; ε0 is the vacuum permittivity; c = 1 ε 0 μ 0 {\textstyle c={\frac {1}{\sqrt
Irradiance
Analogies between Maxwell's and Einstein's field equations
is the gravitational constant, with SI unit m3⋅kg−1⋅s−2 ε0 is the vacuum permittivity, with SI unit kg−1⋅m−3⋅s4⋅A2 c is both the speed of propagation of
Gravitoelectromagnetism
Theorem in physics showing the conservation of energy for the electromagnetic field
t}}+\mathbf {J} \cdot \mathbf {E} =0,} where ε0 is the vacuum permittivity and μ0 is the vacuum permeability. ε 0 E ⋅ ∂ E ∂ t {\displaystyle \varepsilon
Poynting's_theorem
Force acting on charged particles in electric and magnetic fields
{1}{\sqrt {\varepsilon _{0}\mu _{0}}}}.} where ε0 is the vacuum permittivity and μ0 the vacuum permeability. In practice, the subscripts "G" and "SI" are
Lorentz_force
Change in refractive index of a material in response to an applied electric field
{EEE} +\cdots } where ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity and χ ( n ) {\displaystyle \chi ^{(n)}} is the n {\displaystyle n}
Kerr_effect
Electromagnetic radiation
^{4}}{\rho ^{2}}},} where ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity, q {\displaystyle q} is the particle charge, a {\displaystyle a}
Synchrotron_radiation
Lowest energy state in quantum electrodynamics
electrical permittivity of the quantum electrodynamic vacuum can be calculated, and it differs slightly from the simple ε0 of the classical vacuum. (Likewise
QED_vacuum
Gauge boson self-energy due to interactions with virtual particles
screening of a point charge by a medium with a dielectric permittivity, which is why the term vacuum polarization is used. When observed from distances much
Vacuum_polarization
Physical constant with no units
universal dimensioned physical constants, such as the speed of light c, vacuum permittivity ε0, Planck constant h, and the Newtonian constant of gravitation
Dimensionless physical constant
Dimensionless_physical_constant
Definition of the units kg, A, K and mol
the numerical values when expressed in SI units of the vacuum permeability, vacuum permittivity, and impedance of free space, which were exact before the
2019_revision_of_the_SI
Physics concept
the speed of light; ħ is the reduced Planck constant; ε0 is the vacuum permittivity; σ is the cross section of the beam; γ is the natural linewidth of
Optical_depth
Relation between two physical quantities which is specific to a substance
_{0}}}}={\sqrt {\varepsilon _{r}\mu _{r}}}} where ε is the permittivity and εr the relative permittivity of the medium, likewise μ is the permeability and μr
Constitutive_equation
Equations of electromagnetism
}{c^{3}r}}\right)\,dV'} Here, ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity, r = | r − r ′ | {\displaystyle r=|\mathbf {r} -\mathbf {r} '|} is
Jefimenko's_equations
Tendency of matter subjected to an electric field to acquire an electric dipole moment
{F{\cdot }m^{2}} )} where ε 0 {\displaystyle \varepsilon _{0}} , the vacuum permittivity, is ≈8.854 × 10−12 (F/m). If the polarizability volume in cgs units
Polarizability
deformation. Relative permittivity (εr) is the ratio between the absolute permittivity of the piezoelectric material, ε, and the vacuum permittivity, ε0. The electromechanical
List of piezoelectric materials
List_of_piezoelectric_materials
Physical magneto-optical phenomenon
the speed of light in vacuum; m is the electron mass; ϵ 0 {\displaystyle \scriptstyle \epsilon _{0}} is the vacuum permittivity, and the integral is taken
Faraday_effect
Quantum mechanical state change
\varepsilon _{0}} is the vacuum permittivity, ℏ {\displaystyle \hbar } is the reduced Planck constant, c {\displaystyle c} is the vacuum speed of light, and
Spontaneous_emission
Model of electrons within a metallic solid
}^{2}g(E_{\mathrm {F} }),} where μ 0 {\textstyle \mu _{0}} is the vacuum permittivity and the μ B {\textstyle \mu _{\rm {B}}} is the Bohr magneton. This
Free_electron_model
Property of space that quantifies the magnetic influence at a given location
of the point source, ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity, r {\displaystyle \mathbf {r} } is the position vector from the point
Magnetic_field
Analogy used to study vector fields
_{e}/\epsilon _{0}} , where ϵ 0 {\displaystyle \epsilon _{0}} is the vacuum permittivity. In this sense, for a magnetic field B {\displaystyle \mathbf {B}
Sources_and_sinks
Comparative measure of electrostatic and thermal energy
constant of the medium and ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity. For water at room temperature ( T ≈ 293 K {\displaystyle T\approx
Bjerrum_length
Theoretical model for aggregation and stability of aqueous dispersions
{\displaystyle \varepsilon _{0}} is the vacuum permittivity, ϵ r {\displaystyle \epsilon _{r}} is the relative static permittivity, kB is the Boltzmann constant
DLVO_theory
Quasiparticle which is a bound state of an electron and an electron hole
_{0}} is the vacuum permittivity, e {\displaystyle e} is the elementary charge, κ {\displaystyle \kappa } the average relative permittivity of the surrounding
Exciton
Concept in physics
experiment, just as the numerical values of the parameter pair c and the Vacuum permittivity are left to be determined by experiment even when using Einstein's
Postulates of special relativity
Postulates_of_special_relativity
Electromagnetic radiation from a charged particle in a medium
different from their constituent materials, in this case having negative permittivity and negative permeability). This means that, when a charged particle
Cherenkov_radiation
Atom of the element hydrogen
the electron charge, ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity, and n {\displaystyle n} is the quantum number (now known as the
Hydrogen_atom
\epsilon } epsilon permittivity farad per meter (F/m) strain unitless ε 0 {\displaystyle \varepsilon _{0}} epsilon nought Vacuum permittivity farad per meter
List of common physics notations
List_of_common_physics_notations
Model in solid-state physics
/\epsilon _{0}} , where ϵ 0 {\displaystyle \epsilon _{0}} is the vacuum permittivity), and comparing these with the slopes detected experimentally. As
Poole–Frenkel_effect
Thermally induced flow of charge carriers from a surface
\epsilon _{0}}},} where ε0 is the electric constant (also called the vacuum permittivity). Electron emission that takes place in the field-and-temperature-regime
Thermionic_emission
Measurement system based on metre, kilogram, and second
Metre–tonne–second system of units (MTS) Vacuum permeability § Systems of units and historical origin of value of μ0 Vacuum permittivity § Rationalization of units
MKS_units
in meters, ε 0 {\displaystyle {\varepsilon _{0}}} represents the vacuum permittivity constant which is 8.85... × 10−12 farads per meter, and ε r {\displaystyle
Surface_chemistry_of_cooking
Equation giving the form of a central force
electric charge and ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity. Consider the inverse Kepler problem. What kind of force law produces
Binet_equation
Approximating method in quantum mechanics
_{2}|}}\right)} where ħ is the reduced Planck constant, ε0 is the vacuum permittivity, ri (for i = 1, 2) is the distance of the i-th electron from the
Variational method (quantum mechanics)
Variational_method_(quantum_mechanics)
Conductor–ground plane electrical transmission line
limited to a maximum of 7(C+D) ε r = dielectric constant ε o = vacuum permittivity then: K ( 1 − k 2 ) K ( k ) = W l i m + G l i m 2 ( C + D ) = where
Microstrip
Capacitance of the gate terminal of a field-effect transistor
where εSiO2 = 3.9 is the relative permittivity of silicon dioxide ε0 = 8.854×10−12 F/m is the vacuum permittivity tox is the oxide thickness. A. P. Godse;
Gate_capacitance
Theorem in classical electromagnetism
_{1}/\varepsilon _{0}} , where ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity. Similarly, let ϕ 2 {\displaystyle \phi _{2}} denote the electric
Reciprocity (electromagnetism)
Reciprocity_(electromagnetism)
Deviation of electrons from their original trajectories
law has been stated for charges in a vacuum, if the space between point charges contains matter then the permittivity of the matter between the charges must
Electron_scattering
4\omega _{0}^{2}}} , where ϵ 0 {\displaystyle \epsilon _{0}} is the vacuum permittivity. For typical orders of magnitudes involved in laser physics, this
Ponderomotive_energy
Evaluates a line integral through a gradient field using the original scalar field
Euclidean norm of the vector u in R3, and k = 1/(4πε0), where ε0 is the vacuum permittivity. Let γ ⊂ R3 − {p1, ..., pn} be an arbitrary differentiable curve
Gradient_theorem
Property in optics
is the vacuum wave impedance, μ and ε are the absolute permeability and permittivity of the medium, εr is the material's relative permittivity, and μr
Refractive_index
Details in the emission spectrum of an atom
the elementary charge, ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity, a 0 {\displaystyle a_{0}} is the Bohr radius, n {\displaystyle n}
Fine_structure
Equation in physics
charge density ρ and current density J: where ε0 is the vacuum permittivity and μ0 is the vacuum permeability. Throughout, the relation ε 0 μ 0 = 1 c 2
Inhomogeneous electromagnetic wave equation
Inhomogeneous_electromagnetic_wave_equation
Movement of liquid through a conduit due to electric potential
the dielectric constant of the electrolyte solution and ε0 is the vacuum permittivity. This equation can be further simplified using the Debye-Hückel approximation
Electro-osmosis
Angular momentum deriving from photon spin
potential, and ε 0 {\displaystyle \ \varepsilon _{0}\ } is the vacuum permittivity. The equations are written for SI units. We can define the annihilation
Spin angular momentum of light
Spin_angular_momentum_of_light
Hypothetical conflict with the laws of physics as currently known
time-variation of one or more of: speed of light, Planck constant, vacuum permittivity, and elementary charge, since α = e 2 2 ϵ 0 c h {\displaystyle \alpha
Time-variation of fundamental constants
Time-variation_of_fundamental_constants
Probability of a given process occurring in a particle collision
/2)}}\right)^{2}} where ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity. The total cross section is infinite unless a cutoff for small scattering
Cross_section_(physics)
Damping of electric fields
{1}{\varepsilon _{0}}}[Q\delta (r)-e\Delta \rho (r)],} where ε0 is the vacuum permittivity. To proceed, we must find a second independent equation relating
Electric-field_screening
is the Planck constant, ϵ 0 {\displaystyle \epsilon _{0}} is the vacuum permittivity, and m 0 {\displaystyle m_{0}} is the electron rest mass, a 0 {\displaystyle
Mott–Bethe_formula
Solution of Einstein field equations
r_{Q}^{2}={\frac {Q^{2}G}{4\pi \epsilon _{0}c^{4}}},} where ε0 is the vacuum permittivity. The electromagnetic potential in Boyer–Lindquist coordinates is
Kerr–Newman_metric
Microscopic interaction in metals
is the elementary charge, ϵ 0 {\displaystyle \epsilon _{0}} the vacuum permittivity, k T F = 3 e 2 n e / 2 ϵ 0 E F {\displaystyle k_{\mathrm {TF} }={\sqrt
Bardeen–Pines_interaction
Type of angular momentum in light
potential, respectively, ϵ 0 {\displaystyle \epsilon _{0}} is the vacuum permittivity and we are using SI units. The i {\displaystyle i} -superscripted
Orbital angular momentum of light
Orbital_angular_momentum_of_light
Electromagnetic radiation due to deceleration of charged particles
the Lorentz factor, ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity, β ˙ {\displaystyle {\dot {\boldsymbol {\beta }}}} signifies a time
Bremsstrahlung
Smart material systems
\over z^{2}}} where ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity, ε r {\displaystyle \varepsilon _{r}} is the dielectric constant
Dielectric_elastomers
Electrically insulating substance able to be polarised by an applied electric field
\varepsilon _{0}} is the electric permittivity of free space. The susceptibility of a medium is related to its relative permittivity ε r {\displaystyle \varepsilon
Dielectric
is the concentration, ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity, and χ {\displaystyle \chi } is the electric susceptibility. In a
Hyperpolarizability
Physical quantity carried in photons
magnetic fields, respectively, ϵ 0 {\displaystyle \epsilon _{0}} is the vacuum permittivity and we are using SI units. However, another expression of the angular
Angular_momentum_of_light
Variant of the metric system
field H in a medium other than vacuum, we need to also define the constants ε0 and μ0, which are the vacuum permittivity and permeability, respectively
Centimetre–gram–second system of units
Centimetre–gram–second_system_of_units
Solid (crystalline) phase of electrons
_{0}}}\left({\frac {3}{a}}-{\frac {4r^{2}}{a^{3}}}\right)} with ε0 the vacuum permittivity. Comparing − e φ ( r ) {\displaystyle -e\varphi (r)} to the energy
Wigner_crystal
Irish physicist (1826–1911)
expressed, the constant 4πε0 was implicitly included, ε0 being the vacuum permittivity. Like Stoney, Planck independently derived a system of natural units
George_Johnstone_Stoney
Equation in physics
absence of screening and ϵ 0 {\displaystyle \epsilon _{0}} is the vacuum permittivity. This equation can be derived in several screening models like Thomas–Fermi
Screened_Poisson_equation
Nonlinear optical process
{\displaystyle c} is the speed of light in vacuum, ε 0 {\displaystyle \varepsilon _{0}} the vacuum permittivity, n n ω {\displaystyle n_{n\omega }} the optical
Second-harmonic_generation
Apparatus that employs electricity to disperse a liquid into fine aerosol
stand for characteristic length ( r ) {\displaystyle (r)\,} and vacuum permittivity ( ϵ 0 ) {\displaystyle (\epsilon _{0})\,} . Due to intrinsic varicose
Electrospray
Unit system used in the physics of relativity
combinations of the SI base units, based on the constants c, G, ε0 (vacuum permittivity) and kB (Boltzmann constant). Misner, Charles W.; Thorne, Kip S.;
Geometrized_unit_system
Hypothetical particle with one magnetic pole
various units, this condition can be expressed as: where ε0 is the vacuum permittivity, ħ = h/2π is the reduced Planck constant, c is the speed of light
Magnetic_monopole
Descriptive quantity of the ionosphere
charge, mass, and radius, respectively; c is the vacuum speed of light and ϵ0 is the vacuum permittivity. The value of the constant is approximately κ ≈
Total_electron_content
Physical interaction in post-classical physics
{\hat {r}} ,} where ε 0 {\displaystyle \varepsilon _{0}} is the vacuum permittivity, r {\displaystyle r} is the separation of the two charges, and r
Static forces and virtual-particle exchange
Static_forces_and_virtual-particle_exchange
VACUUM PERMITTIVITY
VACUUM PERMITTIVITY
Boy/Male
Hebrew
Comfort.
Girl/Female
Latin
Victory.
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : habitational name from either of two places, Saint-Aubin-du-Thennay or Saint-Jean-du-Thennay, in Eure, Normandy, both so named from an uncertain first element (possibly a Gallo-Roman personal name or the Gaulish word tann ‘oak’, ‘holly’) + the locative suffix -acum.
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : habitational name from Saint-Paul-du-Vernay in Calvados or any of various other places in northern France named with Vernay, from the Gaulish element vern ‘alder’ + the locative suffix -acum.
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : habitational name from a place in Manche, France, so named from the Gallo-Roman personal name Vessius or Vettius (of uncertain origin) + the local suffix -acum.
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : habitational name, with the preposition d(e), from Orsay in Seine-et-Orne, France, recorded in the 13th century as Orceiacum, from the Latin personal name Orcius + the locative suffix -acum.
Surname or Lastname
English
English : variant of Chesney.French : habitational name from a place in Yonne, which takes its name from a Romano-Gallic estate, Caniacum ‘estate of a man named Canius’, from the Roman personal name + the locative suffix -acum.
Surname or Lastname
English (of Norman origin) and French
English (of Norman origin) and French : habitational name from any of various places in northern France called Tilly (Tiliacum in medieval records). Examples in Eure and Calvados are so called from a Gallo-Roman personal name Tilius (perhaps from Latin tilia ‘lime tree’) + the locative suffix -acum; one in Seine-et-Oise gets its name from the personal name Attilius + -acum.Irish : variant of Tully.
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : habitational name, with fused preposition d(e), for someone from Anizy in Calvados, France, recorded in 1155 in the form Anisie. The place name is probably derived from the Romano-Gallic personal name Anitius (of uncertain origin) + the locative suffix -acum.
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : habitational name from places in northern France called Tournai (Orne), Tournay (Calvados), or Tourny (Eure), all named with the pre-Roman personal name Turnus (probably meaning ‘height’, ‘eminence’) + the locative suffix -acum.
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : habitational name from Pacy-sur-Eure, which took its name from the Gallo-Roman personal name Paccius + the locative suffix -acum.
Surname or Lastname
English
English : habitational name from Pusey in Oxfordshire (formerly in Berkshire ), so called from Old English peose, piosu ‘pea(s)’ + ēg ‘island’, ‘low-lying land’, or from Pewsey in Wiltshire, recorded in Domesday Book as Pevesie, apparently from the genitive case of an Old English personal name Pefe, not independently attested + Old English ēg ‘island’.French : habitational name form Pusey in Haute-Saône, so named from a Gallo-Roman personal name, Pusius, + the locative suffix -acum.
Surname or Lastname
English
English : occupational name for a servant (Middle English man) of a man named Hake (see Hake).Respelling of German Hackmann, or a Jewish spelling variant of this name.Respelling of German Hachmann, topographic name for someone living near a hedge or enclosure, from Middle Low German hach ‘hedge’, ‘enclosure’, ‘fenced pasture or woodland’, or habitational name from a place called Hachum (dialect Hachen) in Lower Saxony.
Boy/Male
Australian, Hebrew
Comforter
Surname or Lastname
English and Irish (of Norman origin; also written De Coursey)
English and Irish (of Norman origin; also written De Coursey) : habitational name for someone from any of various places in northern France called Courcy, from the Romano-Gallic personal name Curtius (a derivative of Latin curtus ‘short’; compare Court 2) + the locative suffix -acum.
Boy/Male
Hindu, Indian
Will Come
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : habitational name, with the preposition d(e), for someone from Isigny in Calvados, France, named from the Romano-Gallic personal name Isinius (a Latinized form of Gaulish Isina) + the locative suffix -acum.
Male
Hebrew
Variant spelling of Hebrew Nachuwm, NACHUM means "comfort." In the bible, this is the name of a minor prophet who foretold the fall of Nineveh.
Surname or Lastname
English and Irish (of Norman origin)
English and Irish (of Norman origin) : habitational name from Lassy in Calvados, named from a Gaulish personal name Lascius (of uncertain meaning) + the locative suffix -acum. The surname is widespread in Britain and Ireland, but most common in Nottinghamshire. In Ireland the family is associated particularly with County Limerick.
Surname or Lastname
English (of Norman origin)
English (of Norman origin) : habitational name from Marigni in La Manche, so called from the Gallo-Roman personal name Marinius + the locative suffix -acum.
VACUUM PERMITTIVITY
VACUUM PERMITTIVITY
Girl/Female
Arabic, Muslim
This was the Name of a Female Slave who Suffered Much Punishment for the Sake of Allah but Sayyidina Abu Bakr (RA) Bought her and Emancipated her
Girl/Female
Afghan, Arabic, Bengali, Celebrity, Gujarati, Hindu, Indian, Muslim, Pashtun, Sindhi, Tamil, Telugu
Flower; Narcissus
Surname or Lastname
Irish
Irish : translation of Gaelic Ó Mocháin (see Mohan; Gaelic moch means ‘early’ or ‘timely’), or of some other similar surname, for example Ó Mochóir, a shortened form of Ó Mochéirghe, Ó Maoil-Mhochéirghe, from a personal name meaning ‘early rising’.English : habitational name from any of various places, such as Earley in Berkshire and Arley in Cheshire, Lancashire, Warwickshire, and Worcestershire, which derive their names from Old English earn ‘eagle’ + lēah ‘woodland clearing’.English : nickname from Old English eorllīc ‘manly’, ‘noble’, a derivative of eorl (see Earl).Americanized spelling of German Ehrle.
Boy/Male
Hindu
Female
German
Variant spelling of Low German Anniken, ANNIKIN means "favor; grace."
Girl/Female
Norse
Joy of the Danes.
Girl/Female
Tamil
Amishta | அமிஷà¯à®¤à®¾
Limitless
Boy/Male
Muslim
Proficient, Skilful
Girl/Female
Australian, British, English
Healer
Girl/Female
Australian, Danish, Dutch, French, Hebrew, Latin
Supplants; Female Version of Jacob; Supplanter
VACUUM PERMITTIVITY
VACUUM PERMITTIVITY
VACUUM PERMITTIVITY
VACUUM PERMITTIVITY
VACUUM PERMITTIVITY
pl.
of Vallum
n.
That state in which every part of space is supposed to be full of matter; -- opposed to vacuum.
n.
An empty space; a vacuum.
n.
Empty space; vacuity; vacuum.
n.
The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.; as, a vacuum of 26 inches of mercury, or 13 pounds per square inch.
n.
Space unfilled or unoccupied, or occupied with an invisible fluid only; emptiness; void; vacuum.
n.
A cupping glass or other vessel or instrument used to produce the vacuum in cupping.
n.
The act of throwing cold water into a condenser to produce a vacuum.
n.
The part of a vacuum tube opposite the cathode. Upon it the cathode rays impinge.
pl.
of Vasculum
a.
Of or pertaining to the sacrum; in the region of the sacrum.
n.
A closed vessel for boiling or evaporating. See Vacuum pan, under Vacuum.
n.
A tin box, commonly cylindrical or flattened, used in collecting plants.
pl.
of Factum
pl.
of Vacuum
n.
A space entirely devoid of matter (called also, by way of distinction, absolute vacuum); hence, in a more general sense, a space, as the interior of a closed vessel, which has been exhausted to a high or the highest degree by an air pump or other artificial means; as, water boils at a reduced temperature in a vacuum.
pl.
of Sacrum
pl.
of Vallum
pl.
of Vacuum