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Слова на букву prop-root (732)

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propodeal apophyses
(ARTHROPODA: Insecta) In ichneumonid Hymenoptera, the posterior transverse carina (apical carina) with promontories at its junction with the lateral longitudinal carinae.
see propodeum.
n. [Gr. pro, before; podeon, neck] (ARTHROPODA: Insecta) 1. In apocrite Hymenoptera the fused first abdominal segment; median segment; propodeon also used; see ...
n. [Gr. pro, before; pous, foot; -ites, part] (ARTHROPODA) 1. The next to last segment of a generalized limb. 2. (ARTHROPODA: Insecta) The tarsus. 3. (ARTHROPODA: ...
n. [Gr. pro, before; pous, foot] (MOLLUSCA: Gastropoda) The foremost divison of the foot, functioning in pushing aside sediment as the animal crawls.
n. [Gr. pro, before; pous, foot; soma, body] (ARTHROPODA: Chelicerata) In Acari, the region of the podosoma that bears the first and second pairs of legs.
n. [Gr. pro, before; pous, foot] (ARTHROPODA: Crustacea) The 4th segment of an endopod, between the carpus and dactyl.
propolar cells
(MESOZOA: Rhombozoa) In Dicymedia, the anterior tier of cells in the calotte.
n. [Gr. pro, before; polis, city] (ARTHROPODA: Insecta) In Hymenoptera, a term for resins and waxes collected by bees for use in construction and sealing crevices in the ...
adj. [ME. proppe, prop] (MOLLUSCA: Polyplacophora) Pertaining to teeth of the valves having edges thickened on the outside.
n. [L. proprius, ones own; receptor, receiver] 1. Internal sense organs that lie within the body cavity and respond to internal conditions of the organism. 2. ...
n. [L. pro, before; pupa, puppet] (ARTHROPODA: Insecta) The instar preceding the pupa in Thysanoptera and male Coccidae; sometimes also called prepupa.
see propodite.
n. [Gr. pro, before; rhabdion, little rod] (NEMATA) The wall of the prostome; see rhabdion.
n. [Gr. pros, forward; artema, earring] (ARTHROPODA: Crustacea) In Decapoda, a row of dense setae on the inner margin of the basal segment of the antennular peduncle; also ...
n. [Gr. pro, before; skolex, worm] (PLATYHELMINTHES: Cestoda) The anterior part of a divided scolex.
prosiphonate lining
(PORIFERA: Calcarea) In recent Sphinctozoa, the lining of the atrial cavity of one chamber growing forward into the base of the next-youngest chamber.
n. [Gr. proso, forward; chetos, need] (PORIFERA) An inhalant canal that lead to chambers.
adj. [Gr. proso, forward; klinein, to slant] 1. (MOLLUSCA: Bivalvia) Hinge teeth or shell sloping anteriorly. 2. (MOLLUSCA: Gastropoda) Usually referring to growth lines ...
adj. [Gr. proso, forward; kyrtos, curved] (MOLLUSCA: Gastropoda) Used to describe the growth direction of the helicocone curving forward.
n.; pl. -i [Gr. prosodos, procession] (PORIFERA: Desmospongiae) Tiny channels between the inhalant canal system and exhalant canals; see aphodus.
adj. [Gr. proso, forward; gyros, a circle] (MOLLUSCA: Bivalvia) Describing beaks anteriorly directed; prosocoelous.
n. [Gr. pro, before; soma, body] 1. (ARTHROPODA) The anterior part of the body, usually applied to the cephalothorax. 2. (ARTHROPODA: Chelicerata) Fused imperceptably to ...
n. [Gr. pro, before; soma, body] The anterior body region, specifically used in Phoronida.; see prosoma.
n. [Gr. proso, forward; ponos, work] (MOLLUSCA: Bivalvia) The name proposed to replace surface ornament or sculpture.
n. [Gr. proso, forward; poros, channel] (PORIFERA) An aperture leading to a prosochete.
n. [Gr. proso, forward; pyle, gate] (PORIFERA) The opening of the incurrent canal into the flagellated chamber; sieve area.
n.; pl. -ia [L. pro, before; stare, stand] (PORIFERA) Spicules that project from the sponge; marginal prostalia encircle the osculum; pleural prostalia are on the body ...
prostate glands
См. prostatic glands.
prostatic glands
1. (ANNELIDA: Oligochaeta) In earthworms, atrial glands of unknown function. 2. (MOLLUSCA) An elaboration of the sperm canal that secretes a prostatic solution. 3. ...
prosternal furrow
(ARTHROPODA: Insecta) In many Reduviidae and Phymatidae in the Hemiptera, a cross-striated furrow; stridulation is produced by the rugose apex of the rostrum rubbing over ...
prosternal peg
(ARTHROPODA: Insecta) In Elateridae Coleoptera, a process extending backward into the mesosternal cavity.
prosternal process
См. prosternal peg.
prosternal spine
См. prosternal peg.
n. [L. pro, before; sternum, breast bone] (ARTHROPODA: Insecta) The sternum, or ventral sclerite of the prothorax.
n. [Gr. pros, near; theke, case] (ARTHROPODA: Insecta) The small movable lobe-like process near the extremity of the mandible; the lacinia mobilis.
prosthetic group
A non-peptide portion of an enzyme (may be organic or inorganic) that is responsible for the specific biological action of the protein; see coenzyme, cofactor.
n. [Gr. pro, before; stoma, mouth] (NEMATA) The anterior subdivision of the protostome; see mesostome, metastome.
См. prostom.
prostomial peaks
(ANNELIDA: Polychaeta) Sclerotized antero-lateral projections of the prostomium.
n. [Gr. pro, before; stoma, mouth] 1. The anterior preoral unsegmented portion of a segmented animal\'s body. 2. An acron. 3. (ANNELIDA: Oligochaeta) The anterior ...
n. [Gr. protos, first; aisthesis, sense] A primitive sensilla or sense-bud.
n. [Gr. protos, first; amphibios, double life] (ARTHROPODA: Insecta) The hypothetical common ancestor of Plecoptera, Ephemeridae and Odonata; see protentomon.
protandrous hermaphrodite
A hermaphrodite that functions first as male and then transforms into female; see protogynous hermaphrodite.
n. [Gr. protos, first; aner, male] 1. Maturation of the male gonads, then of the female organs, within a hermaphroditic individual. 2. Males appear earlier in the season ...
protaspis larva
(ARTHROPODA: Trilobita) Larval period after emergence from the egg, covered by a single, dorsal carapace and consisting of an acron and four postoral segments; see meraspis ...
n. [Gr. proteios, primary; -ase, enzyme] Any proteolytic enzyme.
protective coloration
См. protective mimicry.
protective mimicry
see cryptic colors, Batesian mimicry, Mullerian mimicry.
protective polyp
see dactylozooid, tentaculozooid.
protective zooid
См. protective polyp.
protegulal node
(BRACHIOPODA) The apical area of the adult shell; site of protegulum and further growth to brephic stage.
n. [L. pro, before; tegulum, roof] (BRACHIOPODA) The embryonic shell of organic material secreted simultaneously by both mantles.
adj. [Gr. Proteus, changing god; L. forma, shape] Assuming different forms; variable.
n. pl. [Gr. proteion, primary] Complex organic compounds of carbon, nitrogen, hydrogen, oxygen and often other elements, yielding amino acids by hydrolysis; essential in ...
n. [Gr. protos, first; elatton, smaller] (ARTHROPODA: Chelicerata) In Acari, regression of the first instar, particularly regarding elattostase and calyptostase.
protelean parasite
A parasitic organism during larval or juvenile stages and free-living as adult.
n. [Gr. protos, first; entoma, insect] (ARTHROPODA: Insecta) A hypothetical organism suggested as the ancestral form of winged insects; see protamphibion.
adj. [Gr. proteios, primary; lysis, a loosing] Proteinsplitting.
see protandry.
n. [Gr. proteros, before; L. dehiscere, to divide] (ARTHROPODA: Chelicerata) In Acari, splitting of the old cuticle in the anterior part of the body during molting.
n. [Gr. proteros, before; genesis, origin] Young forms appearing similar to adult forms.
see protogyny.
n. [Gr. proteros, before; soma, body] (ARTHROPODA: Chelicerata) In Acari, a combination of the gnathosoma and propodosoma; pseudotagma.
n. [Gr. proteros, before; stoma, mouth] All phyla in which egg cleavage is of the determinent type; includes all bilateral phyla except chaetognaths, pogonophores, ...
n. [Gr. proteros, before; thesis, an arranging] (ARTHROPODA: Insecta) In Hymenoptera, the laying of eggs by certain solitary wasps and bees, which first produce females and ...
n. [Gr. proteros, before; typos, type] The original primary type, including all the material upon which the original description is based.
prothoracic bristle
(ARTHROPODA: Insecta) In Diptera, a bristle above each of the front coxae.
prothoracic glands
(ARTHROPODA: Insecta) Specialized endocrine glands of larvae consisting of a pair of diffused glands at the back of the head, the thorax, or at the base of the labium ...
prothoracic shield
see cervical shield.
n. [Gr. pro, before; thorax, chest] (ARTHROPODA: Insecta) The first segment of the thorax, bearing the front legs, but no wings; manitruncus; corselet; prothoracic adj.. ...
n. [Gr. protos, first; branchiae, gills] (ARTHROPODA: Insecta) Respiratory apparatus contained in the rectum of nymphal Odonata; see branchial basket.
n. [Gr. protos, first; kephale, head] 1. (ARTHROPODA: Insecta) The procephalic part of the definitive head during evolutionary stages. 2. (ARTHROPODA: Crustacea) see acron.
protocerebral bridge
(pons cerebralis) (ARTHROPODA: Insecta) A median mass of neuropile of the protocerebrum, in the dorsal and posterior part of the pars intercerebralis, connecting with many ...
protocerebral region
(ARTHROPODA) That part of the primitive arthropodan brain containing the ocular and other association centers.
n.; pl. -bra [Gr. protos, first; L. cerebrum, brain] (ARTHROPODA) The anterior, (in hypognathous insects dorsal), most complex part of an arthropod brain consisting of ...
n. [Gr. protos, first; kneme, wheel spoke] (CNIDARIA: Anthozoa) In Zoanthinaria, the original 6 pairs of mesentaries.
n. [Gr. protos, first; koilos, hollow] (BRYOZOA) The anterior section of the coelomic cavity; in Phylactolaemata, assumed to be the cavity of the epistome.
n. [Gr. protos, first; konche, shell] (MOLLUSCA: Gastropoda) The embryonic shell of a univalve, indicated by the apical whorls of the adult shell being clearly demarcated ...
n. [Gr. protos, first; cum, with; operari, to work] Interactions between 2 populations that is favorable to both, but is not obligatory.
n. [Gr. protos, first; kormos, trunk] (ARTHROPODA: Insecta) A long narrow \'tail\' in the developing egg from which the trunk segments of insects form; primary trunk ...
n. [Gr. protos, first; dichthadios, double; gyne, woman] (ARTHROPODA: Insecta) In Doryline Hymenoptera, a fertile intermediate between ergatoid and dichthadiigyne.
protogastric area
(ARTHROPODA: Crustacea) In Decapoda, a median part anterior to the cervical groove and posterior to the frontal region.
protogastric lobe
См. protogastric area.
n. [Gr. protos, first; gyne, woman] A female that resembles the male of the same species; a normal female; see primogyne, deutogyne.
protogynous hermaphrodite
A hermaphrodite that functions first as a female and then transforms into a male; see protandrous hermaphrodite.
n. [Gr. protos, first; gyne, woman] 1. A condition of hermaphroditic individuals where the female sex organs are active before the male; proterogyny. 2. Females appearing ...
См. protologue.
n. [Gr. protos, first; logos, work] The original description of a scientific name.
n. [Gr. protos, first; loma, fringe] (ARTHROPODA: Insecta) The anterior margin of the primaries or fore wings.
protomesal areolets
(ARTHROPODA: Insecta) In Hymenoptera, areolets between the costal cells and the apical margin of the wings.
n. [Gr. protos, first; nephron, kidney] Nephridium having a flame cell or solenocyte at its proximal end; found in coelomate, pseudocoelomate and acoelomate animals.
n. [Gr. protos, first; nephron, kidney; mixis, mingling] A protonephridium that opens into the coelomoduct; see nephromixium.
n. [Gr. protos, first; nymphe, young woman] (ARTHROPODA: Chelicerata) In Acari, the 1st stase of the nymphal phase; in Mesostigmata, the early, bloodsucking stage in the ...
protonymphon larva
(ARTHROPODA: Chelicerata) In Pycnogonida, the 1st stage larva with 3 walking legs, with the mouth anterior to the chelicera.
n. [Gr. protos, first; plasma, formed or molded] Matter by which the phenomena of life are manifested.
n. [Gr. protos, first; plastos, formed] The living part (protoplasm) of the cell covered by the cell membrane.
n. [Gr. protos, first; plax, flat plate] (MOLLUSCA: Bivalvia) In Pholadidae, simple, nearly flat, dorsal chitinous or calcareous plate anterior to the umbo; see mesoplax, ...
n. [Gr. protos, first; pous, foot] (ARTHROPODA: Crustacea) The part of an appendage, consisting of coxa and basis or precoxa, coxa, and basis, sometimes fused; ...
protopod larva
(ARTHROPODA: Insecta) In some parasitic Hymenoptera and Diptera, the earliest phase with segmentation absent or indistinct and with rudimentary appendages only on the head ...
n. [Gr. protos, first; pous, foot] (ARTHROPODA) The basal stalk of a segmented appendage; sympod or sympodite; see protopod.
n. [Gr. protos, first; skolex, worm] (PLATYHELMINTHES: Cestoda) In Taeniidae, a juvenile scolex budded within a hydatid or coenurus metacestode.
См. protosome.
n. [Gr. protos, first; soma, body] 1. (ARTHROPODA) The prosoma. 2. (POGONOPHORA) The anterior tentacular region bearing 1-200 tentacles and including the principal nerve ...
n. [Gr. protos, first; L. species, kind] The preexisting type from which other species evolved.
n. [Gr. protos, first; stasis, standing] (ARTHROPODA: Chelicerata) In Acari, an orthostasic stage in a life cycle involving six stases; see orthostasy.
n. [Gr. protos, first; sternon, chest] (ARTHROPODA: Chelicerata) In Acari, the sternite of the cheliceral segment of the prosoma.
n. [Gr. protos, first; stoma, mouth] 1. Metazoans with determinate spiral clevage and where the mesoderm can be traced to a single cell in the blastula, the mouth ...
См. protostom.
n. [Gr. protos, first; stoma, mouth] Formerly the main division between bilateral animals, including the mollusks, annelids, and arthropods.
n. [Gr. protos, first; ostrakion, a shell] (MOLLUSCA: Bivalvia) 1. In larval forms, the first formed part of a prodissoconch. 2. In oysters, the shell of the D-shaped ...
n. [Gr. protos, first; stylos, piller] (MOLLUSCA) The stiff mucous rod of early mollusks that transports the food string along the esophagus into the stomach; the ...
n. [Gr. protos, first; taxis, arrangement] The arrangement of organs in certain areas that are all considered ancestral.
n. [Gr. protos, first; L. tergum, back] (ARTHROPODA: Insecta) The anterior dorsal segment of the abdomen.
n. [Gr. protos, first; theke, case] (CNIDARIA: Hydrozoa) In corals, the surrounding walls of the calyx.
n. [Gr. protos, first; thrix, hair] Chaetotaxy in which certain areas have only idionymous ancestral setae.
n. [Gr. protos, first; trochos, wheel] The preoral girdle of cilia (first girdle) characteristic of a trochophore larva.
prototrochophore larva
A young trochophore larva with an apical organ, prototrochal girdle and a digestive tract with mouth and anus.
prototrochula larva
(PLATYHELMINTHES: Turbellaria) A free swimming larva of some Polycladida supposed to be a precursor of the trochophore larva of other animals.
n. [Gr. protos, first; typos, type] The original type species; the primitive or ancestral form.
n. [Gr. protos, first; zoe, life] (ARTHROPODA: Crustacea) The postnaupliar substages in which the antennae and some of the thoracic exopods are natatory; see zoea.
v.t. [L. pro, before; tractus, a space drawn out] To extend forward or outward; to protrude.
see prosocline.
protractor muscles
1. A contractile muscle that functions to extend an organ. 2. (NEMATA) Muscles attached to the stylet knobs or base and anteriorly to the body wall or head skeleton. 3. ...
protractor preputii
see hood protractor.
n. pl. [L. pro, before; Gr. triaina, trident] (PORIFERA) Tetraxons, with three clads directed forward making an angle of less than 45° with the produced axis of the ...
adj. [L. pro, before; trudo, thrust] Capable of being protruded or withdrawn.
n. [L. protuberare, to swell] An elevation, knob or prominence above the surface.
see columella.
proventricular valvule
(ARTHROPODA: Insecta) In Diptera, a circular fold of the intestinal wall in Tipuloidea.
n.; pl. -li [L. pro, before; ventriculus, dim. of venter, belly] An area of the foregut in annelids, insects and crustaceans just anterior to the midgut, and variously ...
n. [L. pro, before; vinculum, a binding] (MOLLUSCA: Bivalvia) A primitive hinge consisting of very small teeth that develop before the permanent teeth are formed.
provisional mandibles
(ARTHROPODA: Insecta) In some Coleoptera, parts of the mandible found in the pupa, for escaping the cocoon; imaginal cephalic cocoon-cutters.
see subgalea.
adv. [L. proximus, nearest; -ad, toward] Toward the end or portion nearest the body.
adj. [L. proximus, nearest] 1. Toward or nearer the place of attachment or reference of the center or midline of the body. 2. (BRYOZOA) Toward the ancestrula.
proximal chiasma
A chiasma between an inversion loop and the centromere.
proximal gill wheal
(MOLLUSCA: Bivalvia) In oysters, a low ridge (wheal) on the inner surface of the valve showing the proximal edge of the gills.
proximal hemiseptum
(BRYOZOA: Stenolaemata) A hemiseptum projecting from the proximal zooid wall.
proximal sensory area
see haptolachus.
n. [Gr. pro, before; zone, belt] (ARTHROPODA: Insecta) The anterior part of the pronotum; see mesozona, metazona.
n. [Gr. pro, before; zone, belt] (ARTHROPODA: Diplopoda) The anterior portion of a diplosomite, when the tergum is divided by a transverse groove; see metazonite.
n. [L. pruinosus, frosty] (ARTHROPODA: Insecta) A \'bloom\' covering of whitish or waxy particles; pruinose adj..
Przibram's rule
An empirical law of growth; as the volume increases by the cube of a number, the area increases by the square; 1.26 or 3√2.
n. [Gr. psammos, sand] Freshwater or marine organisms living between sand grains; mesopsammon.
adj. [Gr. psammos, sand; philos, loving] Living in or growing in sandy areas or sand; arenicolous; psammophile n.
n. [Gr. psammos, sand; phoreus, bearer] (ARTHROPODA: Insecta) In Formicidae, fringes of long hairs on the posterior surface of the head.
pseudanal segment
(ARTHROPODA: Chelicerata) In acariform Acari, segment XIII and one of the paraproctal segments.
/pseudoaposematic color Mimicry of coloration or form of another organism possessing dangerous or disagreeable qualities; Batesian mimicry; allosematic color; see sematic.
n.; pl. -olia [Gr. pseudos, false; arole, protection] (ARTHROPODA: Insecta) 1. A pad at the apex of the tarsus, similar to an arolium. 2. In Miridae Hemiptera, a more ...
n. [Gr. pseudos, false; epi, upon; pous, foot] (ARTHROPODA: Crustacea) In Cephalocardia, the lateral lobe arising from the distal point of the exopod.
pseudepisematic color
Having mimicry coloration for attractant or aggressive purposes; see episematic, sematic.
n. [Gr. pseudos, false; ergates, worker] (ARTHROPODA: Insecta) In Kalotermes Isoptera, a larval form functionally equivalent to the worker caste in other species, but remains ...
n. [Gr. pseudos, false; bacca or baca, pearl] (ARTHROPODA: Crustacea) Postlarval stage of decapod Scyllaridae; nisto; puerulus.
see pseudoannulation.
n.; pl. -ula [Gr. pseudos, false; L. osculum, small mouth] (PORIFERA) The exterior opening of the pseudogaster; a pseudostoma.
n. pl.; sing. -us [Gr. pseudos, false; acron, top; rhax, berry] (CNIDARIA: Anthozoa) In some Actiniaria, hollow, foliose expansions without nematocysts.
n. pl. [Gr. pseudos, false; allelon, one another] Genes at closely adjacent loci that react in the allelism test as they were alleles and between which crossing over is ...
n. [Gr. pseudos, false; L. annulus, ring] Annulation involving cuticle only, does not involve the coelom.
pseudoaposematic colors
see pseudaposematic colors.
see pseudibacus.
n. [Gr. pseudos, false; branchia, gills] (MOLLUSCA: Gastropoda) In some aquatic Pulmonata, a secondary gill consisting of folds of the mantle near the pneumostome.
n. [Gr. pseudos, false; L. bulbus, bulb] (NEMATA) Muscular swelling of the esophagus lacking a valvular arrangement.
see dorsal vessel.
adj. [Gr. pseudos, false; L. cardinalis, chief] (MOLLUSCA: Bivalvia) Pertaining to irregularly shaped teeth close to the beak.
n. [Gr. pseudos, false; koilos, hollow] A body cavity not lined with a mesodermal epithelium; see Aschelminthes, Pseudocoelomata.
see hemicephalous.
see urogomphus.
see semipupa.
pseudocircle of crochets
(ARTHROPODA: Insecta) Crochets of larvae consisting of a well developed mesoseries and a row of small hooks (lateroseries) on the lateral aspect of the proleg.
См. pseudocele.
pseudocoel cells
see coelomocytes.
n.; pl. -ates [Gr. pseudos, false; koilos, hollow] A group of phyla having a pseudocoelom, no matter how derived, usually comprising the nematodes, rotifers, nematomorphs, ...
pseudocoelomic membranes
(NEMATA) A delicate sheath investing and supporting the internal organs, i.e., the esophagus, internal surface of muscle cells, and between each pair of muscles to the ...
see coelomocytes.
n. [Gr. pseudos, false; L. cum, with; pati, suffer] Fertilization occurring under unusual conditions, that would not normally happen.
adj. [Gr. pseudos, false; konas, cone] (ARTHROPODA: Insecta) In certain Diptera and Odonata, a condition where the cone of the ommatidium is liquid-filled or gelatinous ...
n. [Gr. pseudos, false; L. copula, bond] (ARTHROPODA: Insecta) Pollinization of a flower by copulation of a male insect mistakenly recognizing it as a female insect.
n. [Gr. pseudos, false; A.S. crop, craw] (ARTHROPODA: Insecta) In Hemiptera, an enlargement of the anterior region of the mid-gut dilated in a comparable manner as a ...
n. [Gr. pseudos, false; crus, leg] (BRACHIOPODA) Dorsal adductor impressions elevated above the valve floor.
pseudoctenodont shell
(MOLLUSCA: Bivalvia) A shell with many short teeth transverse to the hinge margin that are in groups related to others with some teeth longitudinally directed; see ...
n.; pl. -culi [Gr. pseudos, false; L. oculus, eye] (ARTHROPODA: Insecta) In Protura, a circular dome of thin, perforated cuticle on the head, having 2-6 neurons with ciliary ...
see deltidium.
n. [Gr. pseudos, false; derma, skin] (PORIFERA: Calcarea) In the most complex sponges of the Leucosolenia, the outermost asconoid bodies are fused together to form a false ...
n. [Gr. pseudos, false; L. eruca, caterpillar] (ARTHROPODA: Insecta) Erucism caused by toxic setae in the adult female; see lepidopterism.
n. pl. [Gr. pseudos, false; L. faex, dregs] (MOLLUSCA: Bivalvia) Particulate matter from the gills and/or excess food formed into masses by mucus for discharge from the ...
see pseudocompatability.
see pseudogamy.
n. [Gr. pseudos, false; gamos, marriage] Apomictic parthenogenesis; development of a female gamete after stimulation (without fertilization) by a male gamete; also termed ...
n. [Gr. pseudos, false; gaster, belly] (PORIFERA) A cavity into which true oscula open and from which pseudooscula open to the exterior.
see amphiblastula.
n. [Gr. pseudos, false; germen, bud] (ARTHROPODA: Insecta) Multicellular fragments of braconid Hymenoptera embryonic membranes found in parasitized Pieris Lepidoptera, that ...
pseudogiant fiber
see giant fiber.
n. [Gr. pseudos, false; gyne, woman] (ARTHROPODA: Insecta) In Hymenoptera, a defective ant, characterized by having a female thorax with the stature, gaster and head of the ...
n. pl. [Gr. pseudos, false; halter, balancer] (ARTHROPODA: Insecta) In Strepsiptera (stylopids), the anterior wings represented by small club-like processes that function ...
n. [Gr. pseudos, false; A.S. heorte, heart] 1. (ANNELIDA) see commissural vessels. 2. (ECHINODERMATA) The axial gland.
n. [Gr. pseudos, false; inter, between; area, space] (BRACHIOPODA:Inarticulata) Flattened posterior part of the shell, secreted by posterior part of the mantle, not fused ...
n. [Gr. pseudos, false; L. labium, lip] (NEMATA) In Spirurida, cuticular outgrowths arising around the oral opening.
adj. [Gr. pseudos, false; L. latus, side] (MOLLUSCA) The false lateral teeth; lateral tooth close to the beak.
see pseudolabia.
n. [Gr. pseudos, false; L. manubrium, handle] (CNIDARIA: Hydrozoa) A long subumbrellar extension containing the radial canals.
n. [Gr. pseudos, false; meta, after; meros, part] 1. False segmentation. 2. (PLATYHELMINTHES: Cestoda) Serial segmentation appearing like metamerism.
see pseudogamy.
adj. [Gr. pseudos, false; monos, one; kyklos, circle] (ECHINODERMATA: Crinoidea) The presence in young and absence in adults of the infrabasal plates; cryptodicyclic.
n. [Gr. pseudos, false; myia, fly] Presence within a host of the larva of a Diptera not normally parasitic.
n. pl. [Gr. pseudos, false; onkos, hook] (NEMATA) Structures in the pharynx that appear to resemble onchia.
n. [Gr. pseudos, false; A.S. nest] (ARTHROPODA: Insecta) In Bombidae, an accumulation of nest building materials found near the entrance to the nest that at times shelter ...
n. [Gr. pseudos, false; neuron, nerve; pteron, wing] (ARTHROPODA: Insecta) Formerly, net-winged insects with incomplete metamorphosis (Ephemeridae, Odonata, Plecoptera, ...
see oenocytoid.
see postscutellum.
n. pl. [Gr. pseudos, false; L. nucleus, kernal] (ARTHROPODA: Insecta) During development, nodules of uric acid that appear in the fat cells.
n. pl.; sing. -ium [Gr. pseudos, false; onyx, claw] (ARTHROPODA: Insecta) In Collembola, a basal tooth-like formation on the pretarsus.
see prepupa, semipupa.
n. [Gr. pseudos, false; L. pallium, mantle] (MOLLUSCA: Gastropoda) In some parasites of Echinoderms, a ring-like fold of the anterior part of the snail growing over the ...
n. [Gr. pseudos, false; L. penis, male copulatory organ] (ANNELIDA: Oligochaeta) The eversible area of the body wall or atrium tip.
n. [Gr. pseudos, false; L. operculum, lid] (ARTHROPODA: Insecta) On the eggs of Heteroptera, an independently evolved cap-like structure.
n. [Gr. pseudos, false; L. pila, pillar] (MOLLUSCA: Bivalvia) Low, broad inward projection of the shell wall.
n.; pl. -tae [Gr. pseudos, false; L. placenta, cake] (ARTHROPODA: Insecta) Embryonic or maternal structures of certain female viviparous insects that are presumed to give ...
pseudoplacental viviparity
(ARTHROPODA: Insecta) Referring to insects that produce eggs, containing little or no yolk, that are retained by the female in the ovariole up to the time of hatching; see ...
См. pseudopodium.
n.; pl. -dia [Gr. pseudos, false; pous, foot] 1. Temporary protrusion of the cell, associated with flowing movement of protoplasm, functioning in locomotion and feeding. 2. ...
n. [Gr. pseudos, false; poly, many; aploos, onefold] Chromosome sets in groups of related species having numerical relationship leading to erroneous interpretation as ...
n. [Gr. pseudos, false; poros, passage] 1. (BRYOZOA: Stenolaemata) In Cyclostomata, a pore in the calcified wall of a zooid that is obstructed by organic matter. 2. ...
n. [Gr. pseudos, false; pteron, wing] (ARTHROPODA: Insecta) Formerly an ordinal name for scale insects.
n.; pl. -ae [Gr. pseudos, false; L. punctum, small hole or spot] (BRACHIOPODA) A type of shell punctation that points inwardly, appearing on the internal surface as a bump; ...
n. [Gr. pseudos, false; L. pupa, puppet] (ARTHROPODA: Insecta) In Coleoptera and Meloidae, a larva in a quiescent pupa-like condition preceding one or more larval instars ...
n. pl.; sing. -a [Gr. pseudos, false; L. pupilla, dim. pupa, puppet] (ARTHROPODA: Insecta) In Odonata, black spots on the compound eyes of live specimens.
n. [Gr. pseudos, false; rhabdos, rod] (PLATYHELMINTHES: Turbellaria) An amorphous mass of slimy material in the epidermal cells; possibly related to rhabdites.
n. [Gr. pseudos, false; L. rostrum, bill] (ARTHROPODA: Crustacea) In Malacostraca Cumacea, paired forward projecting plates on the anterior carapace.
n. [Gr. pseudos, false; skleros, hard] (ARTHROPODA: Chelicerata) In Acari, sclerotized area of the cuticle differing distinctly from the soft cuticle.
n. [Gr. pseudos, false; skolex, worm] (PLATYHELMINTHES: Cestoda) Distortion of the anterior proglottids into a holdfast where the true scolex is lost in early development; ...
n. [Gr. pseudos, false; L. segmentum, piece] (PLATYHELMINTHES: Cestoda) The discreet, flattened sections making up the major part of the body; each being a reproductive ...
n. [Gr. pseudos, false; selene, the moon; zone, girdle] (MOLLUSCA: Gastropoda) A band of crescentic growth lines on the shell surface resembling a selenizone, but not ...
see sematic.
n. [Gr. pseudos, false; L. serum, whey] In embryology, membrane formed during splitting of the blastoderm in the morula stage.
adj. [Gr. pseudos, false; sessum, sitting] (ARTHROPODA: Insecta) In Hymenoptera, appearing sessile due to having the abdomen usually basally constricted and its first ...
n. pl. [Gr. pteron, wing] (ARTHROPODA: Insecta) The wingflexing sclerites of the wing base; axillaries.
see alate.
n. [Gr. pteron, wing; ergates, worker] (ARTHROPODA: Insecta) In Hymenoptera, a worker or soldier ant with vestigial wings.
n. [Gr. pteron, wing; eidos, like] Tetrazanaphthaline derivatives, widespread in nature; important in natural pigmentation.
pteridine pigments
A group of nitrogen-containing compounds producing leucopterin (white), xanthopterin (yellow) the most widely distributed, isoxanthopterin (purple florescence) and biopterin ...
pterine pigments
См. pteridine pigments.
n.; pl. -mae [Gr. pterna, heel; torma, socket] (ARTHROPODA: Insecta) In scarabaeoid larvae, a stoutly curved process at the end of the laeotorma and occasionally of the ...
adj. [Gr. pteron, wing; kardia, heart] (ARTHROPODA: Crustacea) In Decapoda, a gastric mill ossicle in the form of a curved triangular plate articulating with the mesocardiac ...
n. [Gr. pteron, wing; deinos, terrible; ergate, worker] (ARTHROPODA: Insecta) In Hymenoptera, a member of the soldier caste with vestigial wings.
pteropleural bristles
(ARTHROPODA: Insecta) In Diptera, bristles on the pteropleuron.
see mesepimeron.
n.; pl. pteropleura [Gr. pteron, wing; pleuron, side] (ARTHROPODA: Insecta) In Diptera, a sclerite on the side of the thorax, below the base of the wing; the upper part of ...
n. pl. [Gr. pteron, wing; pous, foot] (MOLLUSCA: Gastropoda) Two orders of small swimming, pelagic Opisthobranchia, the shelled Thecosomata, and the naked Gymnosomata ...
n.; pl. -mata [Gr. pteron, wing; stigma, mark] (ARTHROPODA: Insecta) A thickened opaque spot along the costal margin of the wing tip of several orders; stigma; bathmis. ...
see alate.
n. pl. [Gr. pteron, wing; theke, case] (ARTHROPODA: Insecta) In larvae of Diptera, adhering sheaths of the wings.
n. [Gr. pteron, wing; thorax, chest] (ARTHROPODA: Insecta) Collectively, the meso- and metathoracic segments of certain wing-bearing insects; synthorax; pterothoracic adj..
n.; pl. -gia [Gr. dim. pteryx, little wing] (ARTHROPODA: Insecta) 1. The small lobes at the base of the underwings. 2. In Coleoptera, the lateral process of the snout.
adj. [Gr. pteryx, wing; branchia, gills] (ARTHROPODA: Crustacea) Having spreading, feathery gills.
see patagia.
n. pl. [Gr. pteryx, wing; genos, race] (ARTHROPODA: Insecta) 1. Winged adult insects. 2. Descended from winged ancestors; see apterygogenea.
adj. [Gr. pteryx, wing; eidos, like] Wing-like.
n. [Gr. pteryx, wing; polys, many; morphos, shape] (ARTHROPODA: Insecta) Occurrence of different forms of wings in the same species.
pterygostomial region
(ARTHROPODA: Crustacea) In Decapoda, the anterolateral part on the ventral surface of the carapace, on opposite sides of the buccal cavity; jugal region; pterygostome.

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