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What is the meaning of MERCURY. Phrases containing MERCURY
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What is the meaning of MERCURY. Phrases containing MERCURY
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MERCURY
MERCURY
A thermometer filled with water instead of mercury, for ascertaining the precise temperature at which water attains its maximum density. This is about 39¡ Fahr., or 4¡ Centigrade; and from that point down to 32¡ Fahr., or 0¡ Centigrade, or the freezing point, it expands.
The act, or the process, of gilding metallic surfaces by covering them with a thin coating of amalgam of gold, and then volatilizing the mercury by heat; -- called also wash gilding.
A barometer in which the changes of atmospheric pressure are indicated by the motion of a column of water instead of mercury. It requires a column of water about thirty-three feet in height.
A form of air pump in which exhaustion is produced by a stream of mercury running down a narrow tube, in the manner of an aspirator; -- named from the inventor.
MERCURY
n.
One of the planets, the second in order from the sun, its orbit lying between that of Mercury and that of the Earth, at a mean distance from the sun of about 67,000,000 miles. Its diameter is 7,700 miles, and its sidereal period 224.7 days. As the morning star, it was called by the ancients Lucifer; as the evening star, Hesperus.
n.
A process in which mercury, or some of its salts, is employed to impart the property of felting to certain kinds of furs.
v.
To reach a higher level by increase of quantity or bulk; to swell; as, a river rises in its bed; the mercury rises in the thermometer.
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.
A metallic element mostly obtained by reduction from cinnabar, one of its ores. It is a heavy, opaque, glistening liquid (commonly called quicksilver), and is used in barometers, thermometers, ect. Specific gravity 13.6. Symbol Hg (Hydrargyrum). Atomic weight 199.8. Mercury has a molecule which consists of only one atom. It was named by the alchemists after the god Mercury, and designated by his symbol, /.
a.
Having wings attached to the feet; as, wing-footed Mercury; hence, swift; moving with rapidity; fleet.
v. t.
To produce an abnormal flow of saliva in; to produce salivation or ptyalism in, as by the use of mercury.
v. t.
To wash with a preparation of mercury.
n.
An elementary substance found as an oxide in the mineral cassiterite, and reduced as a soft white crystalline metal, malleable at ordinary temperatures, but brittle when heated. It is not easily oxidized in the air, and is used chiefly to coat iron to protect it from rusting, in the form of tin foil with mercury to form the reflective surface of mirrors, and in solder, bronze, speculum metal, and other alloys. Its compounds are designated as stannous, or stannic. Symbol Sn (Stannum). Atomic weight 117.4.
n.
A device, consisting of a pipe or tube bent so as to form two branches or legs of unequal length, by which a liquid can be transferred to a lower level, as from one vessel to another, over an intermediate elevation, by the action of the pressure of the atmosphere in forcing the liquid up the shorter branch of the pipe immersed in it, while the continued excess of weight of the liquid in the longer branch (when once filled) causes a continuous flow. The flow takes place only when the discharging extremity of the pipe ia lower than the higher liquid surface, and when no part of the pipe is higher above the surface than the same liquid will rise by atmospheric pressure; that is, about 33 feet for water, and 30 inches for mercury, near the sea level.
n.
A rare nonmetallic element, analogous to sulphur and selenium, occasionally found native as a substance of a silver-white metallic luster, but usually combined with metals, as with gold and silver in the mineral sylvanite, with mercury in Coloradoite, etc. Symbol Te. Atomic weight 125.2.
n.
A kind of musical instrument. a species of lyre; -- so called in allusion to the lyre of Mercury, fabled to have been made of the shell of a tortoise.
n.
The god of eloquence and letters among the ancient Egyptians, and supposed to be the inventor of writing and philosophy. He corresponded to the Mercury of the Romans, and was usually represented as a human figure with the head of an ibis or a lamb.
v. t.
To cover with silver; to give a silvery appearance to by applying a metal of a silvery color; as, to silver a pin; to silver a glass mirror plate with an amalgam of tin and mercury.
n. pl.
Small wings or winged shoes represented as fastened to the ankles, -- chiefly used as an attribute of Mercury.
n.
A substance (usually liquid) suitable for, or employed in, solution, or in dissolving something; as, water is the appropriate solvent of most salts, alcohol of resins, ether of fats, and mercury or acids of metals, etc.
MERCURY
MERCURY