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see anteclypeus.
n. [L. clypeus, shield; palatum, roof of the mouth] (ARTHROPODA: Insecta) A division of the palatum of Culicidae, formed by the ventral surface of the clypeus; the roof ...
n. [L. clypeus, shield] 1. (ARTHROPODA: Chelicerata) The anterior tagma between eyes and cheliceral bases in arachnids. 2. (ARTHROPODA: Crustacea) That part of the head ...
n. [L. clypeus, shield; frons, front] (ARTHROPODA: Insecta) The transverse groove delimiting the clypeus from the frons.
n. [Gr. nema, thread; kystis, bladder] (CNIDARIA) Intracellular organelles that function in defense and capture of prey by injecting a toxin; in hydras, they function in ...
cnida cnidae
pl; see nematocyst.
См. cnidarian.
n. [Gr. knide, nettle] 1. A phylum of primitive eumetazoans, including the hydras, jellyfish, sea anemones and corals, each bearing nematocysts. 2. In some classifications ...
n. [Gr. knide, nettle; blastos, bud] (CNIDARIA) A round or ovoid interstitial cell that forms a nematocyst.
n. [Gr. knide, nettle; L. cilium, eyelid] (CNIDARIA) A small pointed projection on a nematocyst that acts as a trigger during discharge.
n. [Gr. knide, nettle; kystis, bladder] (CNIDARIA) A rigid oval capsule containing the eversible thread in the cnidoblast.
n. [Gr. knide, nettle; phorein, to bear] (CNIDARIA) A contractile stalk with an enlarged hollow tip bearing nematocysts; present on the tentacles of some medusae.
n. [Gr. knide, nettle; pous, foot] (CNIDARIA) The basal portion of a nematocyst.
n. [Gr. knide, nettle; rhax, grape] (CNIDARIA) Clusters of rounded projections of tube anemones that are filled with nematocysts.
См. cnidus sac.
cnidus sac
n. [Gr. knide, nettle; sakkos, bag] (MOLLUSCA: Gastropoda) Cells in the distal tip of the cerata in which undischarged nematocysts ingested from cnidarians are stored and ...
adj. [L. cum, together; ordo, rank] In nomenclature, of the same value.
n. [L. cum, together; ordo, rank] The production of harmonious interaction of the various parts and processes of an organism.
adj. [L. coacervare, to heap up] Piled up; collected into a crowd; densely clustered.
adj. [L. coactus, compress] Pertaining to a short stout form; condensed.
n. [L. cum, with; ad, to; aptus, to fit] The selection process that tends to accumulate harmonious interactions of genes brought together by natural selection.
adj. [L. coadunare, to unite with] 1. Combined or joined together. 2. (ARTHROPODA: Insecta) Elytra when permanently united at the suture.
n. [L. coagulare, to curdle] The formation of a clot; to change from a liquid to a viscous or solid state.
n. [L. coagulare, to curdle] A constituent of blood that aids in coagulation.
n. [L. coagulare, to curdle; Gr. kytos, container] (ARTHROPODA) Specialized granular hemocytes; see cystocytes.
n. [L. coagulare, to curdle] A semisolid mass; a clot; curd.
v.i. [L. coalitus, united] To come together into one; to fuse or blend.
adj. [L. coalitus, united] A growing together, uniting.
v.i. [L. coalitus, united] To unite or associate.
coalite stilt prolegs
(ARTHROPODA: Insecta) Having a portion of the prolegs united into one organ for a part of their length, with a bifid apex.
adj. [L. coarctatus, compressed] 1. Crowded together; compressed; contracted. 2. (ARTHROPODA: Insecta) Having the abdomen separated from the thorax by a constriction.
coarctate larva
(ARTHROPODA: Insecta) 1. A larva similar to the dipteran puparium in which the skin of the preceding instar is not completely shed, being attached to the caudal end of the ...
coarctate pupa
(ARTHROPODA: Insecta) A type of pupa in certain Diptera, with the last larval skin being retained as a protective puparium, with tracheal connection maintaining contact ...
n. pl. [F. cocarde, insignia] (ARTHROPODA: Insecta) Lateral protrusible vesicles at the sides of the thorax and abdomen of Malachiidae beetles.
n. [Gr. kokkinos, scarlet] (ARTHROPODA: Insecta) A defensive secretion (C 13H23 NO), of the ladybug beetle Coccinella septempunctate, that has a bitter taste and smell that ...
adj. [Gr. kokkinos, scarlet] Cochineal red; scarlet.
adj. [L. cum, together; Gr. kephale, head] (ARTHROPODA: Insecta) Having a prognathous head in which only the foramen exists.
n. [Gr. kokkinos, scarlet] (ARTHROPODA: Insecta) A crimson dye commercially extracted from the dried bodies of the homopterous insect Dactylopius coccus (cochineal scale) ...
adj. [Gr. kochlias, snail with a spiral shell] Spirally twisted like a snail shell; screw-like.
n. [Gr. konkylion, shell] (MOLLUSCA: Bivalvia) The heartshaped shells or valves of the family Cariidae.
n. [F. cocon, shell] A protective case or covering of an egg mass, larva, pupa, or adult of various invertebrates.
См. cocoon-cutter.
(ARTHROPODA: Insecta) Structures or an elevated ridge of the pupa of certain Lepidoptera, often on the meson of the head; functioning in exiting the cocoon.
n. [L. codex, tablet] The International Code of Zoological Nomenclature.
adj. [L. cum, with; dominus, master] Pertaining to genes when both alleles of a pair are fully expressed in the heterozygote.
n. [L. codex, tablet] The genetic unit of three adjacent nucleotides that specify a single amino acid in a polypeptide chain.
codonocephalus larva
(PLATYHELMINTHES: Trematoda) A metacercaria similar to a neascus larva.
- For words not found here see ce- or cae-.
see caecum.
См. coeca.
См. coelenterate.
n. [Gr. koilos, hollow; enteron, intestine] 1. A group of diploblastic, mostly marine animals with a single internal cavity with an oral opening. 2. Cnidaria ...
n. [Gr. koilos, hollow; enteron, intestine] The single cavity, or sole body space of a coelenterate, serving as a stomach and excretory organ, and by outgrowths, as a ...
see hypoblast.
n.; pl. -lae [Gr. koilos, hollow; blastos, bud] 1. A hollow blastula; a blastula without qualification. 2. (PORIFERA: Calcarea) The simple type of blastula larva found ...
adj. [Gr. koilos, hollow; konos, cone; eidos, form] Approaching conical but with concave sides; extraconic; see conoid, cyrtoconoid.
n. [Gr. koilos, hollow; gaster, stomach] A gastrula derived from a coeloblastula.
n. [Gr. koilos, hollow] The body cavity or space between the body wall and internal organs lined with mesoderm in many metazoan animals.
n. [Gr. koilos, hollow] In some classifications, a taxonomic group comprising those metazoans that have a coelom or body cavity formed in and surrounded by mesoderm at ...
adj. [Gr. koilos, hollow] Having a coelom or body cavity.
n. [Gr. koilos, hollow; mesos, middle; blastos, bud] In segmentation, the mesoblastic bands that will form the wall of the coelom and outgrowths.
coelomic canals and sacs
(SIPUNCULA) Dermal canals, spaces or diverticula containing coelomic fluid connected with the body cavity through small pores; possibly aiding respiration.
coelomic cavity
That area between the viscera and the body wall.
coelomic funnel
The nephrostome.
coelomic papillae
(SIPUNCULA) Small, flat, leaf-like processes on the coelomic surface of the body wall, usually anterior of the nephridial attachment.
coelomic sacs
Cavities representing the coelom that appear in the mesoderm in embryology.
n. pl. [Gr. koilos, hollow; kytos, container] 1. Corpuscles (usually amoebocytes) in the coelomic or pseudocoelomic fluids of invertebrates. 2. (ANNELIDA) amoebocytes and ...
n. [Gr. koilos, hollow; L. ducere, to lead] Any duct that connects the coelom to the external surface of the body, usually applied to the terminal tubule of nephridia; in ...
n. pl. [Gr. koilos, hollow; poros, passage] 1. (BRYOZOA) A body wall pore connecting the coelom with the exterior; the pore at the base of the tentacles through which the ...
n. [Gr. koilos, hollow; stoma, mouth] The external opening of a coelomoduct.
n. [Gr. koilos, hollow; mys, muscle] (NEMATA) Muscle structure in which the contractile fibrils are not only next to the subcuticula, but also extend varying distances up the ...
adj. [Gr. koilos, hollow; zoon, animal] Living in the lumen of a hollow organ, i.e., the intestine.
См. coenenchyme.
n.; pl. coenenchymata [Gr. koinos, common; enchyma, infusion] (CNIDARIA: Anthozoa) Thick cellular mesoglea connecting adjacent polyps of alcyonarian corals; coenenchymal ...
n. [Gr. koinos, common; biosis, manner of life] A consociation of plants and animals of different species.
n. [Gr. koinos, common; blastos, bud] Embryonic germ layer originating both in the endoderm and mesoderm.
n. [Gr. koinos, common; kytos, container] A multinucleate condition of discrete cells resulting from repeated nuclear division unaccompanied by cell fission; giant cell. ...
n. [Gr. koinos, common; oikos, house] (BRYOZOA) The common secreted investment of a colony, gelatinous, chitinous, or calcareous.
see cenogenetic.
see cenogenous.
n. [Gr. koinos, common; gone, generation] Reproduction involving coenocytes.
n. [Gr. koinos, common; sarx, flesh] (CNIDARIA: Hydrozoa) The hollow living tubes of the upright branching individuals of a colony; see stolon, perisarc.
n. [Gr. koinos, common] 1. A community; biocoenosis. 2. Association. 3. A community dominated by two distinct species, that may or may not be mutually antagonistic.
n. [Gr. koinos, common; sitos, food] A free or separable commensal organism.
n. [Gr. koinos, common; L. species, kind] Collectively, those related species or ecospecies that can intercross to form hybrids that are sometimes fertile.
n.; pl. -tea [Gr. koinos, common; osteon, bone] 1. (CNIDARIA: Hydrozoa) The calcareous mass forming the skeleton of a compound coral. 2. (PORIFERA: Sclerospongiae) The ...
n. [Gr. koinos, common; trope, turn] A form of behavior common to a group or species.
see coenurus.
n. [Gr. koinos, common; oura, tail] (PLATYHELMINTHES: Cestoda) A metacestode in the family Taeniidae, in which scolices bud from an internal germinative membrane inside ...
n. [L. cum, with; Gr. en, in; zyme, yeast] An organic substance associated with an enzyme in order to function; an organic cofactor.
n. [L. cum, with; evolvere, to unroll] Development of genetically determined traits in two species to facilitate some interaction, usually mutually beneficial; see ...
n. [L. cum, with; existere, to exist] Existing at the same time and place with another.
n. [L. cum, together; facere, to act] Any accessory substance (inorganic or organic) attached to an enzyme and necessary for its function; such as a metallic ion or a ...
n. pl. [L. cum, together; habitare, to dwell] Organisms that dwell with others.
n. [L. cum, together; haerere, to stick] Attraction between molecules of the same substance.
n. [L. cohors, enclosure] In older classifications, indefinite taxonomic groups ranked above a superorder, between class and order, or related families.
n.; pl. -ae [Gr. koilos, hollow] (ARTHROPODA: Insecta) The point upon the body on which the articulation of an appendage is made.
adj. [L. cum, with; incadere, to fall on] Occupying the same position.
n. [L. cum, with; indutus, clothed] (MOLLUSCA: Gastropoda) In some bellerophonts, a rather thick, obliquely layered shelly coating, extending over the inner lip from within ...
См. coitus.
n. [L. coire, to go together] Mating; copulation.
see calobiosis.
see poikilothermal.
Light emitted by bioluminescent organisms; envolving relatively little heat.
adj. [Gr. koleos, sheath; pteron, wing] (ARTHROPODA: Insecta) Pertaining to the Coleoptera; beetlelike.
n. (ARTHROPODA: Insecta) In some Hemiptera, the corium and membrane of the hemeletron are not well differentiated, with the hemeletron appearing like a beetle\'s elytron. ...
adj. [L. collare, band for the neck; labrum, lip] (MOLLUSCA: Gastropoda) Shells with the growth lines conforming to the shape of the outer lip.
n. [Gr. kolla, glue; L. genos, to produce] Fibrous protein material in connective tissues binding together many cells and tissues; relatively inelastic.
n. [Gr. kolla, glue; genos, to produce; -asis, denoting enzymes] A proteolytic digestive enzyme.
n. [L. collare, band for the neck] 1. Any of various structures comparable with a collar. 2. (ANNELIDA: Polychaeta) Specially developed outgrowths carried on the first ...
collar cell
A choanocyte.
n. [L. collare, band for the neck] The more or less elevated posterior part of the collum.
n. [L. dim. collare, band for the neck] 1. (CHAETOGNATHA) Thickened distended cells in the neck region that in some species extend posteriorly along the trunk for some ...
adj. [L. cum, with; latera, sides] A subsidiary; indirect; a lateral branch of an axon.
collateral intestine
(ECHIURA) A tube associated with the midgut.
see colleterial glands.
n. [Gr. kolla, glue; -toria, derived Latin for appropriate place] The duct of the colleterial gland.
collecting basket
(ARTHROPODA: Insecta) Hairs, bristles or spines on the forelegs that function in collecting or holding food while consuming it.
См. collenchyme.
n. [Gr. kolla, glue; NL. enchyma, type of cell tissue] Mesenchyme when there is a great deal or large amounts of gelatinous intercellular material and cells are relatively ...
n. [Gr. kolla, glue; en, in; kytos, container] (PORIFERA) A mobile cell responsible for collagen secretions.
colleterial glands
См. sebific glands.
see colleterial glands.
see rhopalium.
colletric glands
См. sebific glands.
См. colliculose.
n.; pl. colliculi [L. dim. collis, hill] A small elevation.
v.t. [L. cum, with; ligare, to bind] To tie or bind together.
n. [L. cum, with; ligare, to bind] The combining together of isolated facts.
n. [Gr. kolla, glue; blastos, bud] (CTENOPHORA) Adhesive cells; sticky cells covering much of the surface of the tentacles that are used to capture and ingest prey.
n. [Gr. kolla, glue; phoreus, bearer] (ARTHROPODA: Insecta) In Collembola, a respiratory osmoregulatory organ, or ventral tube, on the venter of the 1st abdominal segment.
n.; pl. colla [L. collum, neck] 1. The neck or collarlike structure. 2. (ARTHROPODA) The armoured tergite on the first segment behind the head in millipeds and pauropods ...
colo(u)r insects
Color resulting from a variety of structures and pigments; when in combinations of pigments, results from abundance and position.
n. [Gr. kolon, large intestine] (ARTHROPODA: Insecta) The large intestine; that part of the hindgut between the ileum and the rectum.
colonial organism
An aggregate of cells all alike in structure and function.
(ARTHROPODA: Insecta) In Phylloxera, see radicola; in aphids, see alienicola.
n. [L. colonia, farm] 1. A group of individuals of the same species living in close association with each other. 2. (BRYOZOA) A morphological and functional unit comprised ...
colony control
(BRYOZOA) A process that influences changes of the functional and morphological aspects of zooids belonging to a colony from those of a solitary animal.
colony fission
(ARTHROPODA: Insecta) In social Hymenoptera, the establishement of new colonies by the departure of one or more reproductive forms plus groups of workers from the parental ...
colony odor
(ARTHROPODA: Insecta) In social insects, the odor found on the bodies of individuals belonging to a colony, that serves as an indicator to other members of the same species ...
color change in insects
1. Short term reversible physiological changes that do not involve the production of new pigments. 2. Morphological change is a long-term change resulting from formation of ...
adj. [L. colubrinus, snakelike] Snakelike.
n.; pl. coluli [L. dim. colus, spindle] (ARTHROPODA: Chelicerata) The slender or pointed appendage immediately in front of the spinnerets in some spiders; in others, greatly ...
n. [L. dim. of columna, column] 1. A rod, pillar or column. 2. (CNIDARIA: Anthozoa) The central skeletal mass of many corals. 3. (MOLLUSCA: Gastropoda) The solid or ...
columellar fold
(MOLLUSCA: Gastropoda) A spiral wound ridge on the columella that projects into the interior of the shell.
columellar lip
(MOLLUSCA: Gastropoda) The internal lip of the aperture of a shell.
columellar muscle
(MOLLUSCA: Gastropoda) In snails, a large muscle attached in the upper portion of the shell spire; used to draw the soft parts into the shell.
n. [L. columna, column] 1. Any column-shaped structure. 2. (CNIDARIA) The body. 3. (ECHINODERMATA: Crinoidea) Segments that makeup the stem.
n. pl. [L. columna, column] (ECHINODERMATA: Crinoidea) The single row of superimposed, round or pentagonal skeletal stems.
adj. [L. columna, column] Formed like a column.
adj. [L. cum, with; margo, edge] (MOLLUSCA: Bivalvia) Coinciding with the growth lines of the shell; concentric.
adj. [L. comatus, with long hair] 1. Having hair; hairy. 2. (ARTHROPODA: Insecta) Having hair on the upper surface.
n. [A.S. camb, comb] 1. Any of various comb-like structures. 2. (ARTHROPODA: Chelicerata) The pecten of scorpions. 3. (ARTHROPODA: Insecta) a. The strigil. b. The many ...
comb collar
(ARTHROPODA: Crustacea) In certain Cirripedia, the retractable membrane supporting a row of uniform setae, at the superior angle of the aperture.
comb plate
see swimming plate.
comb rows
(CTENOPHORA) Eight radially arranged bands of cilia that are partly fused in transverse rows; swimming plates; costa; comb-ribs; ctenes; paddle plate.
comb shaped
see pectinate.
see comb rows.
combination colors
Colors arising from a combination of pigmentary and structural features; see color change in insects.
n. pl. [A.S. camb, comb] 1. Any of various comb-like processes. 2. (ARTHROPODA: Insecta) a. A row of specialized spines or scales of Culicidae larvae centered on each side ...
comet stage
(ECHINODERMATA: Asteroidea) A regenerating asteroid with a group of little arms at one end of a big arm.
n. pl. [L. comitare, to accompany] (PORIFERA) The small di- or tri-actine spicules; see principalia.
n. [L. cum, with; mensa, table] One of the partner species involved in commensalism; a coenosite.
n. [L. cum, with; mensa, table] A symbiotic relationship in which one of the two partner species benefits, without apparent effects on the other species; see symbiosis, ...
v.t. [L. cum, with; minuere, to lessen] To reduce to minute particles or powder; pulverize; triturate.
n. [L. cum, with; miscere, to mix] A group of individuals all of which can potentially exchange genes.
commissural induration
(ARTHROPODA: Chelicerata) In mites, sclerotized thickening along the inner part of a commissural line to support the lip walls.
commissural line
(ARTHROPODA: Chelicerata) 1. In arachnids, union between two lips. 2. In Acari there are three or four, two superiors and one or two inferiors.
commissural plane
(MOLLUSCA: Bivalvia) The plane of the valve commissure.
commissural shelf
(MOLLUSCA: Bivalvia) The shelflike part of the shell abutting the commissure peripherally.
commissural vessels
(ANNELIDA) Paired segmental lateral blood vessels from the dorsal vessel to anteriorly join the ventral vessel and more posteriorly, the sub-neural vessel; when ...
adj. [L. communis, general] Of frequent or ordinary occurrence; occurring on two adjacent parts or appendages.
common bud
see confluent budding zone.
common name
A colloquial or vernacular name.
common oviduct
(ARTHROPODA: Insecta) In female genitalia, the ectodermal part of the oviduct, from fusion of paired oviducts to gonopore; oviductus communis; medium oviduct.
common salivary duct
(ARTHROPODA: Insecta) In Diptera, the common median part of the salivary duct opening into the salivary pump.
common vitelline duct
(PLATYHELMINTHES: Turbellaria) Connects the vitelline ducts to the ootype.
adj. [L. communis, common] Living as a colony.
n. [L. communis, common] 1. Action on the part of one organism that alters the probability pattern of behavior in another organism. 2. Sending of signals that influence the ...
n.; pl. -ties [L. communis, common] A group of plants and/or animals of one or more species in a given area or region that are related by environmental requirements.
adj. [L. comosus, hairy] Having hair; hairy; ending in a tuft; comate.
v.t. [L. compaginatus, joined] To be close together; to join firmly; to consolidate.
compartmental plate
(ARTHROPODA: Crustacea) One of several rigidly articulated plates forming part of the shell wall of sessile barnacles.
n. [OF. compasser, go around] (ECHINODERMATA: Echinoidea) A slender radial piece of the lantern of Aristotle that passes outward from the vicinity of the esophagus.
compensatory sac
see contractile vessel.
n. [L. competere, to compete for] The ability of an embryonic primordium to differentiate in a specific direction, under appropriate stimuli.
n. [L. competere, to compete for] The simultaneous endeavor of two or more organisms to survive when the essential resource of the environment is not sufficient for both.
competitive exclusion
The principle that no two species can coexist at the same time in the same locality when their ecological requirements are identical; Gause\'s rule; exclusion principle.
adj. [L. complanatus, flattened] Flattened; level.
see chromosome complement.
complemental male
In certain annelids and barnacles, a small male that inhabits the same area occupied by a hermaphroditic form.
complemental reproductive
see supplementary reproductive.
n. [L. complementum, something that completes] The appearance of wild-type phenotype in an organism or cell containing two different mutations combined in a hybrid diploid. ...
complete coverage
see valve coverage.
complete metamorphosis
(ARTHROPODA: Insecta) The transformation period encompassing larva, pupa and adult; holometabolous metamorphosis; see incomplete metamorphosis.
n. [L. complexus, entwine] Pertaining to a number of related taxonomic units, often units in which the taxonomy is difficult or confusing; see group.
n. [L. complexus, entwine] An aggregate.
adj. [L. cum, with; plicare, to fold] 1. Folding or extending over another. 2. (ARTHROPODA: Insecta) The elytron.
adj. [L. cum, with; plicare, to fold] Folded longitudinally; folded together or in an irregular manner.
adj. [L. cum, with; ponere, to put] 1. A component part; compound. 2. (ANNELIDA: Oligochaeta) Pertaining to certain stalked glands of pheretimas annelids that contain ...
composite nest
(ARTHROPODA: Insecta) A nest inhabited by a communal colony; see compound nest.
adj. [L. cum, with; ponere, to put] Composed of several elements of similar or dissimilar parts united into a single structure.
compound antenna
A capitate antenna comprised of several joints.
compound eye
(ARTHROPODA) A composite optic organ, the external surface consisting of circular facets that are very close together, or of facets in contact and more or less hexagonal in ...
compound nest
(ARTHROPODA: Insecta) A nest inhabited by two or more species of social insects, where broods of each species are kept separate; see mixed nest.
compound ocellus
Any ocellate spot containing three or more circles of color.
compound phanere
In phanerotaxy, composed of two different elements, one basal and one distal.
compound rostrum
(ARTHROPODA: Crustacea) In balanomorph barnacles, a compartmental plate formed by fusion of rostrolaterals with rostrum or of fused rostrolaterals; see rostrum.
compound skeletal wall
(BRYOZOA: Stenolaemata) An interior skeletal wall, calcified on the edges and both sides; the vertical wall.
adj. [L. compressus, pressed together] Flattened from side to side or top to bottom; nearly flat, with reduced thickness.
n. [L. compressus, pressed together] A fossilized organism\'s carbonized remains produced by compressive forces.
n. [L. compressus, pressed together] A muscle that serves to compress.
compressor of the labrum
(ARTHROPODA: Insecta) The single or paired median muscle attached on the anterior and posterior walls within the labrum.
Comstock System or Comstock-Needham
(ARTHROPODA: Insecta) The principal wing veins and their branches named and numbered.
Comstock-Kellogg glands
(ARTHROPODA: Insecta) In some acridid Orthoptera, a pair of glands thought to produce a sex-attractant substance.
n.; pl. -aria [L. conus, cone] (CNIDARIA: Hydrozoa) The earliest larva known that becomes a primary gastrozooid, and later develops an enlarged pneumatophore.
n. [L. cum, with; camera, chamber] 1. Divided into chambers or cavities. 2. An arched hollow near the hinge area of a shell.
adj. [L. cum, together; catena, chain] To join or link together; connect in a series or chain; having a series of points placed in regular order.
adj. [L. cum, with; cavus, hollow] Rounded and hollow, as the interior of a sphere; see convex.
adj. [L. concavus, hollowed or arched inward; convexus, arched outward] Pertains to being concave on one surface and convex on the other.
adj. [L. cum, with; centrum, midpoint of a circle] Something having a common center, i.e., lines or ridges curving around a center; arcs having the same center; see ...
conceptacula seminis
(ARTHROPODA: Insecta) A mesodermal organ of certain females for the storage of sperm after deposition into a mesospermalege.
adj. [L. concipere, to receive] Capable of conceiving.
n. [L. concha, shell] (MOLLUSCA: Gastropoda) A trumpet shell; a large marine univalve shell.
n.; pl. -chae [L. concha, shell] Any structure shaped like a shell.
adj. [L. concha, shell; -atus, provided with] 1. Conchiform. 2. (ARTHROPODA: Insecta) In Orthoptera, having a shell-like inflation of the auricle in the tibia.
see Bivalvia.
adj. [L. concha, shell; fere, to bear] Producing or having a shell; testaceous.
adj. [L. concha, shell; forma, shape] Shell-shaped; conch-like in form; conchoid.
see conchiolin.
n. [L. concha, shell] (MOLLUSCA) The organic component forming the thin outer layer of the shell; conchin; see nacre.
adj. [L. concha, shell] Composed of shells, as limestones and marbles in which shell fragments are noticeable.
n. [L. concha, shell; Gr. logos, discourse] The branch of zoology dealing with the arrangement and description of mollusks based upon a study of their hard parts; ...
see Bivalvia.
conchostracan carapace interspace
(ARTHROPODA: Crustacea) Any area between two growth lines of the conchostracan carapace; intervales; growth zone; growth band.
conchostracan carapace interval
(ARTHROPODA: Crustacea) Any space between two ribs, costae, or costellae of the conchostracan carapace.
conchostracan carapace ribs
(ARTHROPODA: Crustacea) Strong radial ridges with intervals of variable width radiating from and across the umbo, usually nodose at intersections of growth lines.
n. [L. concha, shell] (CNIDARIA: Anthozoa) A modified siphonoglyph of certain sea anemones that is provided at the oral end with a spout-like lip.
n. [L. concha, shell; Gr. morphe, form] A fossil imprint of a shell.
adj. [L. concinnus, well-arranged] Neat; elegant.
adj. [L. concolor, colored uniformly] 1. Of uniform color. 2. (ARTHROPODA: Insecta) Having the upper and lower surfaces of Lepidoptera with the same coloring.
n. [L. cum, together; crescere, to grow] The growing together of parts; joining; coalescing; the union of parts originally separated.
n. [L. cum, together; crescere, to grow] A massing together of parts or particles.
adj. [L. cum, together; currere, run] Meeting or coming together; acting in conjunction, as a joint or vein.
n. [L. cum, together; densare, to thicken] 1. The act or process of condensing. 2. Descendents passing through the ancestral part of ontogeny faster than their ancestors did ...
conditioned reflex
The habitual response in the nervous system arising from a particular outside stimulus.
n. [L. conditio, agreement, state] The process of acquisition by an animal of the capacity to respond to a new stimulus by associating the new stimulus with an old one.
n. [L. conducere, to lead together] The movement of heat, sound waves, or nerve impulses through an organism\'s cells or tissues.
n. [L. conducere, to lead together] The ability to transmit an impulse.
n. [L. conducere, to lead together] A structure specialized for the transmission of excitation.
adj. [L. cum, together; duplicare, to double] Doubled or folded together; folded together lengthwise.
n. [Gr. kondylos, knuckle] 1. A knoblike process that forms the fulcrum for joint movement. 2. (ARTHROPODA) The surfaces between arthropod joints, that provide the fulcra ...
n. [L. conus, cone] 1. Any cone-shaped structure. 2. The conical crystalline body of a compound eye, not always solid crystalline and occasionally not conical; see ...
cone cell
(ARTHROPODA: Insecta) One of the four cells that produce the crystalline cone.
see cyrtoconic.
adj. [L. confertus, pressed together] Densely assembled or packed; crowded.
adj. [L. confluere, flowing together] Flowing together; merging; running together as confluent spots without marked lines of distinction.
confluent budding zone
(BRYOZOA: Stenolaemata) Coelomic budding space and surrounding exterior walls connecting body cavities of buds or combinations of buds and zooids.
confluent multizooidal budding zone
(BRYOZOA: Stenolaemata) Confluent budding zone that originates outside of the zooidal boundaries opposite the endozone.
confluent zooidal budding zone
(BRYOZOA: Stenolaemata) A confluent budding zone originating within the outer coelomic space of zooids opposite exozone; in some taxa, opposite distal endozone.
adj. [L. congener, of same race] 1. A term applied to species of the same genus. 2. Belonging to the same kind, class, or stock.
adj. [L. cum, together; Gr. genesis, beginning] Having the same origin.
adj. [L. cum, together; gignere, to beget] Of or pertaining to a condition present at birth.

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