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Dispute concerning the evolution of arthropods
The (pan)arthropod head problem is a long-standing zoological dispute concerning the segmental composition of the heads of the various arthropod groups
Arthropod_head_problem
Head section of an arthropod
segmented fused section of the head where the archicerebrum is housed known as the acron. See also arthropod head problem. The crustacean Cherax warsamsonicus
Cephalon_(arthropod_head)
Phylum of invertebrates with jointed exoskeletons
"The arthropod head problem". In 1960, R. E. Snodgrass even hoped it would not be solved, as he found trying to work out solutions to be fun. Arthropod exoskeletons
Arthropod
Mouthpart of insects and crustaceans
It too suggests that the labrum derives from paired appendages. Arthropod head problem Insect mouthparts Haas, M. S.; Brown, S. J.; Beeman, R. W. (2001)
Labrum_(arthropod_mouthpart)
Set of morphological features common to members of a phylum of animals
description of relative placement of body parts Arthropod head problem – Dispute concerning the evolution of arthropods Deep homology – Control of growth and differentiation
Body_plan
Extinct genus of arthropods
taxa, and it has been discussed extensively in the context of the arthropod head problem. The genus is named after Fuxian Lake (Fuxian Hu), where it was
Fuxianhuia
Biological concepts and questions with insufficient resolutions
known. Arthropod head problem. A long-standing zoological dispute concerning the segmental composition of the heads of the various arthropod groups,
List of unsolved problems in biology
List_of_unsolved_problems_in_biology
Paired appendages used for sensing in arthropods, onychophorans and annelids
antennae. Antennae are connected to the first one or two segments of the arthropod head. They vary widely in form but are always made of one or more jointed
Antenna_(zoology)
Phylum of invertebrate animals
(September 2010). "Head patterning and Hox gene expression in an onychophoran and its implications for the arthropod head problem". Development Genes
Onychophora
British palaeontologist
Foreningen in 2021. G. E. Budd. 2002. A palaeontological solution to the arthropod head problem. Nature 417: 271-275. G. E. Budd. 2006. On the origin and evolution
Graham_Budd
Extinct genus of Amplectobeluid radiodont
derives from the same structures, providing a possible answer to the arthropod head problem. L. trilobus is quite similar, although somewhat smaller, with its
Lyrarapax
Grouping of segments into functional units
the thoracic segments in this tagma being called the "pereon". Arthropod head problem D. R. Khanna (2004). Biology of Arthropoda. Discovery Publishing
Tagma_(biology)
Comparison of organism developmental processes
inheritance, genetic assimilation, niche construction and symbiosis. Arthropod head problem Cell signaling Evolution & Development (journal) Human evolutionary
Evolutionary developmental biology
Evolutionary_developmental_biology
term used to refer to the framework of internal supports within an arthropod head. The tentorium is formed by ingrowths of the exoskeleton, called apodemes
Tentorium
Extinct genus of arthropods
Dinocaridids - anomalous arthropods or arthropod-like worms?. Budd, Graham E. (2002). "A palaeontological solution to the arthropod head problem". Nature. 417 (6886):
Parapeytoia
Extinct genus of bivalved arthropod
October 2022. Budd, G. (2002). "A palaeontological solution to the arthropod head problem". Nature. 417 (6886): 271–275. Bibcode:2002Natur.417..271B. doi:10
Perspicaris
Extinct stem-arthropod species found in Cambrian fossil deposits
Opabinia regalis is an extinct stem group marine arthropod found in the Lagerstätte of the Burgess Shale (Middle Cambrian, 505 million years ago) of British
Opabinia
Species of centipede
and expensive insect/arthropod drugs in Korean traditional medicine. They are frequently prescribed alone, despite arthropod drugs are usually prescribed
Chinese_red-headed_centipede
Headland on the Burin Peninsula, Newfoundland, Canada
microfossils. Below Treptichnus, the stratotype at Fortune Head includes traces of the arthropod Monomorphichnus, vertical dwelling burrows from Skolithos
Fortune_Head
In 2025, several new arthropod fossil taxa, including arachnids, crustaceans, trilobites, and other arthropods (for insects, see 2025 in paleoentomology)
2025 in arthropod paleontology
2025_in_arthropod_paleontology
Insect parasite of humans
The head louse (Pediculus humanus capitis) is an obligate ectoparasite of humans. Head lice are wingless insects that spend their entire lives on the human
Head_louse
Act of producing sound by rubbing together certain body parts
produced by stridulation include chirp and chirrup. Insects and other arthropods stridulate by rubbing together two parts of the body. These are referred
Stridulation
Order of arthropods (fossil)
Cheloniellida is a taxon (usually referred to as an order) of extinct Paleozoic arthropods. As of 2018, 7 monotypic genera of cheloniellids had been formally described
Cheloniellida
Extinct order of arthropods
Agnostida are an order of extinct arthropods which have classically been seen as a group of highly modified trilobites, though some recent research has
Agnostida
Simple eye without retina
Consequently, an enormous variety of eye types are found in arthropods to overcome visual problems or limitations. Use of the term simple eye is flexible,
Simple_eye_in_invertebrates
Medical condition
Head lice infestation, also known as pediculosis capitis, is the infection of the head hair and scalp by the head louse (Pediculus humanus capitis). Itching
Head_lice_infestation
Part of the body between the chest and pelvis
An abdomen (also belly or stomach in vertebrates, or metasoma in arthropods) is the front part of the torso between the thorax (chest) and pelvis in humans
Abdomen
Medical condition
Ethanol as an arthropod killing solution. Szinwelski N, Fialho VS, Yotoko KS, Seleme LR, Sperber CF (2012). "Ethanol fuel improves arthropod capture in pitfall
Pediculosis
Extinct group of arthropods
meaning "pouch", and κεφαλή or cephalon meaning "head") is an extinct group of mandibulate arthropods, that are generally regarded as a kind of crustacean
Thylacocephala
Subphylum of arthropods
Chelicerata are arthropods as they have: segmented bodies with jointed limbs, all covered in a cuticle made of chitin and proteins; heads that are composed
Chelicerata
Extinct genus of arthropod
Caryosyntrips ("nutcracker") is an extinct genus of stem-arthropod which known from Canada, United States and Spain during the middle Cambrian. It was
Caryosyntrips
Species of amphibian
unspecified arthropod prey. It is uncertain precisely which arthropods lend their toxicity to which genus of Dendrobatidae, but one such arthropod is thought
Yellow-banded poison dart frog
Yellow-banded_poison_dart_frog
Class of extinct, Paleozoic arthropods
"three-lobed entities") are extinct marine arthropods that form the class Trilobita. One of the earliest groups of arthropods to appear in the fossil record, trilobites
Trilobite
Extinct genus of giant hurdiid radiodont
of extinct hurdiid (peytoiid) radiodont (a grouping of primitive stem arthropods which lived during the early Paleozoic) that lived during the Miaolingian
Titanokorys
Sampling bias in the fossil record raising difficulties to characterize extinctions
Kühl, G.; Briggs, D. E. G.; Rust, J. (February 2009). "A Great-Appendage Arthropod with a Radial Mouth from the Lower Devonian Hunsrück Slate, Germany".
Signor–Lipps_effect
Control of harmful species
Chemists. ISBN 978-0-913250-38-9. Thacker, J.R.M. (2002). An Introduction to Arthropod Pest Control. Cambridge University Press. p. 193. ISBN 978-0-521-56787-9
Pest_control
Family of insects
Horse flies and their phylogenetic significance (Diptera: Tabanidae)". Arthropod Systematics & Phylogeny. 80: 295–307. doi:10.3897/asp.80.e86673. ISSN 1864-8312
Tabanidae
Effect of long-term ergot poisoning
fungus—from the Latin clava "club" or clavus "nail" and -ceps for "head", i.e. the purple club-headed fungus—that infects rye and other cereals, and more recently
Ergotism
Mid-Cambrian fossils from a deposit in British Columbia, Canada
without a counterpart. This fossil was a puzzle, as its head looked rather like that of an arthropod but its body, with what seemed to be fins along its back
Fossils_of_the_Burgess_Shale
Species of bird
and nuts, such as acorns, which it may hide to eat later; soft fruits; arthropods; and occasionally small vertebrates. It typically gleans food from trees
Blue_jay
Infestation of parasitic maggots
(Diptera: Sarcophagidae) in Mashhad, Iran: a Case Report". Journal of Arthropod-Borne Diseases. 14 (3): 317–324. doi:10.18502/jad.v14i3.4565. PMC 7903363
Myiasis
Period of major evolutionary diversification of animal life
The most common organism, Marrella, was clearly an arthropod, but not a member of any known arthropod class. Organisms such as the five-eyed Opabinia and
Cambrian_explosion
Type of skin disease caused by parasitic mites
Selamectin applied to the skin (topically) has some of the same theoretical problems in collies and MDR1 dogs as ivermectin, but it has nevertheless been approved
Mange
Order of arthropods (fossil)
often informally called sea scorpions, are a group of extinct marine arthropods that form the order Eurypterida. The earliest known eurypterids date to
Eurypterid
Extinct genus of soft-bodied sea animals
controversy, and interpretations of the fossil have likened it to molluscs, arthropods, conodonts, worms, tunicates, and vertebrates. This creature had a mostly
Tullimonstrum
Paradox concerning water on early Earth
Unsolved problem in astronomy How can the early Earth have had liquid water if the Sun's output is theorized to have been only 70% as intense as it is
Faint_young_Sun_paradox
S. C.; L. R., Seleme; C. F., Sperber (2012). "Ethanol fuel improves arthropod capture in pitfall traps and preserves DNA". ZooKeys (196): 11–22. Bibcode:2012ZooK
Treatment_of_human_lice
Small eight-legged arthropod
Mites are small arachnids (eight-legged arthropods) of two large orders, the Acariformes and the Parasitiformes, which were historically grouped together
Mite
Family of trombidiform mites
adults, trombiculid mites are independent predators that feed on small arthropods and their eggs, and are also found to eat plant material. They live in
Trombiculidae
Respiratory organ in aquatic animals
acts as a gill as water is drawn through its spongy structure. Aquatic arthropods usually have gills which are in most cases modified appendages. In some
Gill
Type of insect that feeds on human blood
PMID 37443675. Bircher AJ (2005). "Systemic Immediate Allergic Reactions to Arthropod Stings and Bites". Dermatology. 210 (2): 119–127. doi:10.1159/000082567
Bed_bug
Extinct genus of sea scorpions
(meaning "true flesh") is a genus of eurypterid, an extinct group of aquatic arthropods. Fossils of Eusarcana have been discovered in deposits ranging in age
Eusarcana
Species of mosquito
for its prevalence. Although the Wolbachia infection is prevalent in arthropod species, especially the Asian tiger mosquito, it is a useful mechanism
Aedes_albopictus
the employ of Biosyn and has engineered hybrid locusts using Cretaceous arthropod DNA for the company. In an extended scene, revealed that his locusts initially
List of Jurassic Park (franchise) characters
List_of_Jurassic_Park_(franchise)_characters
Species of mite
by Sarcoptes scabiei var. hominis, which is a particular public health problem in crowded settings such as care homes, schools, refugee camps, prisons
Sarcoptes_scabiei
List of statements that appear to contradict themselves
which contradicts what we observe. Denny's paradox: Surface-dwelling arthropods (such as the water strider) should not be able to propel themselves horizontally
List_of_paradoxes
Extinct genus of lobopodians
Laura; Simonetta, Alberto M. (2009) [1991]. "Early Palaeozoic arthropods and problems of arthropod phylogeny: with some notes on taxa of doubtful affinities
Collinsovermis
Class of arthropods
enhanced photos of sample debris to create images resembling small arthropod heads, which then were claimed to be springtail remnants. However, Steve
Springtail
Extinct genus of arthropods
Hibbertopterus is a genus of eurypterid, a group of extinct marine arthropods. Fossils of Hibbertopterus have been discovered in deposits ranging from
Hibbertopterus
Subspecies of insect
and relapsing fever. In developed countries, infestations are only a problem in areas of poverty where there is poor body hygiene, crowded living conditions
Body_louse
Extinct superfamily of arthropods
an extinct superfamily of eurypterids, an extinct group of chelicerate arthropods commonly known as "sea scorpions". It is one of four superfamilies classified
Stylonuroidea
Scientific theory in vertebrate development
the organization of dorsal and ventral structures in the crayfish (an arthropod) is opposite that of mammals, and he proposed that mammals and other vertebrates
Axial_twist_theory
Species of fly
order Diptera within the class Insecta of the subphylum Hexapoda of the Arthropod phylum. Phlebotomus papatasi are translucent light brown in color, with
Phlebotomus_papatasi
Species of parasitic worm
Wuchereria bancrofti is a filarial (arthropod-borne) nematode (roundworm) that is the major cause of lymphatic filariasis. It is one of the three parasitic
Wuchereria_bancrofti
Extinct genus of bilaterians
number of unrelated "platypus problems"; early lagerstätten fossils that have seemed to mix features of chordates and arthropods, two animal clades considered
Skeemella
Species of snake
adapted to the prey species of the island, primarily native ectotherms, arthropods, and migrating birds. As a result, its venom is more potent towards these
Golden_lancehead
Alien franchise extraterrestrial species
within a Predator/Yautja, displayed Predator/Yautja physical traits (arthropod-like mandibles) from eruption onwards. This process of horizontal gene
Xenomorph
Extinct order of dragonfly-like animals
geological periods of increased oxygen concentration and atmospheric density. Arthropod as well as amphibian gigantism appear to have been facilitated by a hyperoxic
Meganisoptera
Extinct family of arthropods
"Hibbert's wing") is a family of eurypterids, an extinct group of aquatic arthropods. They were members of the superfamily Mycteropoidea. Hibbertopterids were
Hibbertopteridae
Retaining juvenile features into adulthood
Das Problem der Menschwerdung : Vortrag gehalten am 15. April 1926 auf der XXV. Versammlung der anatomischen Gesellschaft zu Freiburg [The Problem of Humanization:
Neoteny
Frontal part of an animal's body, between its head and abdomen
Chest pain can be the result of multiple issues, including respiratory problems, digestive issues, and musculoskeletal complications. The pain can trigger
Thorax
Genus of spiders
tactical problems by using brains vastly smaller than those of mammalian predators. Portia has a brain significantly smaller than the size of the head of a
Portia_(spider)
Species of plant
expel worms. Tansy is an effective insecticide and is highly toxic to arthropods. Because it contains thujone, the U.S. FDA limits the use of tansy to
Tansy
Order of insects including praying mantises
Loxomantis, Orthodera, and Statilia, like many other arthropods, avoid attacking them. A variety of arthropods, including some early-instar mantises, exploit
Mantis
Class of arthropods
They are the largest group within the arthropod phylum. Insects have an exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed
Insect
Invasion and occupation by pests and parasites in host
"infestation" refers to parasitic diseases caused by animals such as arthropods (i.e. mites, ticks, and lice) and worms, but excluding (except) conditions
Infestation
Medical condition
clothing and bedding is usually[clarification needed] not necessary, as the problem normally[clarification needed] goes away with daily bathing, and at least
Pediculosis_corporis
Species of fly
waist, lower back, or buttocks. C. anthropophaga rarely causes severe problems, and mainly causes cutaneous myiasis. Geary et al. describe the presentation
Cordylobia_anthropophaga
Records of Earth's development
is the Phanerozoic, divided into three eras: the Palaeozoic, an era of arthropods, fishes, and the first life on land; the Mesozoic, which spanned the rise
History_of_Earth
Family of beetles
attempt to refine this relatively wide range, recent research has repeated arthropod succession studies. These studies are applied to estimate the arrival
Dermestidae
1002/ar.70190. PMID 41844340. Napoli, J. G. (2026). "Resolving the "ontogeny problem" in vertebrate paleontology". Paleobiology: 1–30. doi:10.1017/pab.2026
2026 in archosaur paleontology
2026_in_archosaur_paleontology
discovery of the high efficiency of DDT as a contact poison against several arthropods" 1949 Walter Rudolf Hess (1881–1973) Switzerland "for his discovery of
List of Nobel laureates in Physiology or Medicine
List_of_Nobel_laureates_in_Physiology_or_Medicine
Predatory order of arachnids
than a scorpion: a reassessment of Parioscorpio venator, a problematic arthropod from the Llandoverian Waukesha Lagerstätte". Palaeontology. 64 (3): 429–474
Scorpion
Jaekelopterus rhenaniae at 2.5 m (8 ft 2 in) in length, which is also the largest arthropod known to exist. Erettopterus grandis possibly reached this same length
Largest_prehistoric_animals
Fourth and current eon of the geological timescale
phyla into diverse forms; the evolution of plants; the evolution of fish, arthropods and molluscs; the terrestrial colonization and evolution of insects, chelicerates
Phanerozoic
Family of molluscs
tusk-like hard shell made of calcium carbonate. It has a protective cap over its head which it reabsorbs to burrow into the mud for food. The case of the shipworm
Shipworm
Order of arthropods
Behan-Pelletier, V.M. (1993). "Diversity of soil arthropods in Canada: systematic and ecological problems". In G.E. Ball; H.V. Danks (eds.). Systematics
Protura
American virologist and epidemiologist
epidemiologist and public health expert, particularly known for his work on arthropod-borne viruses and emerging infectious diseases. He discovered more novel
Robert_Shope
Foodborne illness
up to four days. Symptoms may last a few weeks to a few months. Heart problems such as slow heart rate and low blood pressure may occur. The specific
Ciguatera_fish_poisoning
Human disease
from Latin: scabere, lit. 'to scratch'. It is a particular public health problem in crowded settings such as care homes, schools, refugee camps, prisons
Scabies
Methods to prevent bed bug infestations
the leaves trap the bugs by piercing the tarsi joints of the bed bug's arthropod legs. As a bug struggles to get free, it impales itself further on the
Bed_bug_control_techniques
commonly known as wildflower dieback or jarrah blight, has created a massive problem in some types of native vegetation – especially jarrah forest and banksia
Invasive_species_in_Australia
Species of tick
bovine babesiosis which is ranked as the most economically important arthropod-transmitted illness in cattle. Bovine babesiosis is characterized by anemia
Rhipicephalus_microplus
of fossil arthropods described in 2019 is a list of new taxa of trilobites, fossil insects, crustaceans, arachnids and other fossil arthropods of every
2019 in arthropod paleontology
2019_in_arthropod_paleontology
Organ system for circulating blood in animals
never leaves the network of blood vessels. Many invertebrates such as arthropods have an open circulatory system with a heart that pumps a hemolymph which
Circulatory_system
Common name of many species of mites that live in the ears of animals and humans
Symptoms include itching and redness of the ears. Other, more serious problems can result from untreated infections, such as skin disease in areas other
Ear_mite
Species of tick
Seddon H.R. (1968) Diseases of Domestic Animals in Australia. Part 3: Arthropod Infestations (Ticks and Mites). Serv Publ Dep Hlth Vet Hyg 7: 68 Roberts
Ixodes_holocyclus
Milkweed butterfly in the family Nymphalidae
species of spiders, grasshoppers, crickets, ants, flies, beetles and other arthropods. Larvae can sometimes avoid predation by dropping from the plant or by
Monarch_butterfly
Species of butterfly
predator in British town and city environments (such as in gardens) while arthropods had larger influence in rural areas. Bird predators include the house
Pieris_rapae
Species of fly
that infest human remains. This area relies on correctly identifying arthropod species, approximating the age of the insects to determine the initial
Calliphora_latifrons
ARTHROPOD HEAD-PROBLEM
ARTHROPOD HEAD-PROBLEM
Surname or Lastname
English
English : topographic name for someone who lived on a heath, from Middle English hÅth ‘heath’, Old English hÄð, a byform of hǣð (see Heath). This form was restricted in the Middle Ages to southeastern England, and the surname is still largely confined to Kent and Sussex. In some cases it may be a habitational name from the village of Hoath in Kent, which is named with this word.
Surname or Lastname
English
English : topographic name for someone who lived by a meadow, from Middle English mede ‘meadow’ (Old English mǣd).English : metonymic occupational name for a brewer or seller of mead (Old English meodu), an alcoholic beverage made by fermenting honey.
Surname or Lastname
English
English : variant spelling of Read.
Surname or Lastname
German, Dutch, and Jewish (Ashkenazic)
German, Dutch, and Jewish (Ashkenazic) : nickname from Middle High German, Middle Dutch, Yiddish held ‘hero’. As a Jewish name, it is often ornamental.German : from a short form of any of the Germanic personal names formed with hild ‘strife’ as the first element.English : variant of Heald.
Boy/Male
English
From the meadow.
Surname or Lastname
English
English : possibly a hypercorrected form of Eady.
Surname or Lastname
English (chiefly southwest)
English (chiefly southwest) : occupational name for a tender of animals, normally a cowherd or shepherd, from Middle English herde (Old English hi(e)rde).
Surname or Lastname
English (chiefly southwestern)
English (chiefly southwestern) : variant of Hale 1.
Surname or Lastname
English (chiefly Lancashire)
English (chiefly Lancashire) : habitational name from Heap Bridge in Lancashire, or a topographic name for someone who lived by a hill or heap, from Old English hēap ‘heap’, ‘mound’, ‘hill’.
Boy/Male
English
Red haired.
Surname or Lastname
English (Lancashire and Yorkshire)
English (Lancashire and Yorkshire) : topographic name for someone who lived on a hillside, from Old English helde, hælde, hielde ‘slope’.
Surname or Lastname
English
English : possibly a metonymic nickname for a needy person, from Middle English ne(e)d ‘need’.Respelling of German Nied.
Female
Hebrew
(הֵד) Hebrew unisex name HED means either "shout of joy" or "echo."
Surname or Lastname
English
English : variant spelling of Shedd.Irish : reduced variant of Sheedy.
Boy/Male
Muslim
Homeland
Surname or Lastname
English (chiefly Kent)
English (chiefly Kent) : from Middle English heved ‘head’, applied as a nickname for someone with some peculiarity or disproportion of the head, or a topographic name for someone who lived on a hill or at the head of a stream or valley. This surname has long been established in Ireland.
Boy/Male
Indian
Group of camels that number from to
Boy/Male
Muslim
Group of camels that number from 100 to 200
Male
English
English surname transferred to forename use, derived from an Old English byname, Red, READ means "red-headed or ruddy-complexioned."Â
Surname or Lastname
English
English : nickname for a person with red hair or a ruddy complexion, from Middle English re(a)d ‘red’.English : topographic name for someone who lived in a clearing, from an unattested Old English rīed, r̄d ‘woodland clearing’.English : Read in Lancashire, the name of which is a contracted form of Old English rǣghēafod, from rǣge ‘female roe deer’, ‘she-goat’ + hēafod ‘head(land)’; Rede in Suffolk, so called from Old English hrēod ‘reeds’; or Reed in Hertfordshire, so called from an Old English ryhð ‘brushwood’.English : A family called Read were established in America in the early 18th century by John Read, who was born in Dublin, sixth in descent from Sir Thomas Read of Berkshire, England. His son, George Read (1733–98), was one of the signers of the Declaration of Independence, and as a lawyer helped frame the Constitution.
ARTHROPOD HEAD-PROBLEM
ARTHROPOD HEAD-PROBLEM
ARTHROPOD HEAD-PROBLEM
ARTHROPOD HEAD-PROBLEM
ARTHROPOD HEAD-PROBLEM
ARTHROPOD HEAD-PROBLEM
ARTHROPOD HEAD-PROBLEM
v. i.
To go or point in a certain direction; to tend; as, how does the ship head?
n.
One of the somites (arthromeres) which make up the head of arthropods.
v. t.
To be at the head of; to put one's self at the head of; to lead; to direct; to act as leader to; as, to head an army, an expedition, or a riot.
n.
The place or honor, or of command; the most important or foremost position; the front; as, the head of the table; the head of a column of soldiers.
n.
Each one among many; an individual; -- often used in a plural sense; as, a thousand head of cattle.
n.
An anthropoid ape.
v. t.
To set on the head; as, to head a cask.
v. t.
To form a head to; to fit or furnish with a head; as, to head a nail.
n.
The place where the head should go; as, the head of a bed, of a grave, etc.; the head of a carriage, that is, the hood which covers the head.
v. t.
To go in front of; to get in the front of, so as to hinder or stop; to oppose; hence, to check or restrain; as, to head a drove of cattle; to head a person; the wind heads a ship.
v. i.
To form a head; as, this kind of cabbage heads early.
n.
The anterior region or head of insects and other arthropods.
a.
Principal; chief; leading; first; as, the head master of a school; the head man of a tribe; a head chorister; a head cook.
n.
An arthropod.
v. t.
To give audience or attention to; to listen to; to heed; to accept the doctrines or advice of; to obey; to examine; to try in a judicial court; as, to hear a recitation; to hear a class; the case will be heard to-morrow.
n.
The seat of the intellect; the brain; the understanding; the mental faculties; as, a good head, that is, a good mind; it never entered his head, it did not occur to him; of his own head, of his own thought or will.
n.
One of the Arthropoda.
n.
A headland; a promontory; as, Gay Head.
n.
A headdress; a covering of the head; as, a laced head; a head of hair.
v. t.
To cut off the top of; to lop off; as, to head trees.