Слова на букву moru-oocy (732) Dictionary of invertebrate zoology
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nutricial castration
См. castration nutriciale.
n. [L. nutrix, nurse] A symbiotic relationship in which one partner obtains all the benefits.
n. [L. nutrire, to feed] The ingestion, digestion and assimilation of food substances that includes their distribution within the organism, as well as the metabolism and ...
adj. [Gr. nyktos, night; pelagos, sea] Coming to the water surface only at night.
n. [Gr. nymphe, bride] 1. (ARTHROPODA: Chelicerata) The immature stage of Acari and Ixodoidea with a full complement of legs; an instar. 2. (ARTHROPODA: Insecta) An ...
n.; pl. -phae [Gr. nymphe, bride] 1. (ARTHROPODA: Chelicerata) In Acari, sclerites beneath the epigynium. 2. (MOLLUSCA: Bivalvia) The immersed area behind the beak that ...
nymphal phase
(ARTHROPODA: Chelicerata) The second or third phase of postembryonic development; in Acari with six stases, the third phase comprised of proto-, deuto- and tritonymphs.
adj. [Gr. nymphe, bride; L. parere, to beget] (ARTHROPODA: Insecta) Bearing live young in an advanced stage of development; see pupipara.
n. [Gr. nymphe, bride; chrysallis, gold colored pupa] (ARTHROPODA: Chelicerata) In chigger mites, a nonfeeding, prenymph; a calyptostasic protonymph.
adj. [Gr. nymphe, bride; eidos, form] (ARTHROPODA: Chelicerata) Nymphal phase instars that cannot be homologized with nymphal instars of other species.
nymphoid reproductive
(ARTHROPODA: Insecta) A neoteinic reproductive with wing buds; a second-form reproductive; secondary reproductive; a brachypterous neoteinic.
n. [Gr. nymphe, bride] The process of transforming into a nymph or a pupa.
adj. [L. ob, inverse; conic, cone] Inversely conical; in the form of a reversed cone.
adj. [L. ob, inverse; cor, heart] Inversely heartshaped.
adj. [L. obesus, fat] Distended; enlarged; corpulent.
adj. [L. ob, inverse; imbrex, tile] Having regularly overlapping scales; see obsite.
objective synonym
One of two or more names based on the same type.
adj. [L. ob, inverse; lanceolatus, spear-like] Inversely lanceolate.
adj. [L. oblatus, spread out] Flattened; pertaining to a spheroid of which the diameter is shortened at two opposite ends; flattened at the poles.
adj. [L. obligare, to be required] Pertaining to the inability to live in a different environment; see facultative.
obligate parasite
A parasite that cannot exist without a host during all or some portion of the life cycle; see facultative parasite.
obligate symbiont
An organism that is physiologically dependent upon a symbiotic relationship with another; see facultative symbiont.
adj. [L. ob, inverse; liquis, awry] Slanting; deviating from the perpendicular, or a particular horizontal direction, but not perpendicular to it.
oblique muscles
1. (ECHIURA) Innermost muscle layer of body wall; may form oblique or nearly transverse fascicles between bands of the longitudinal muscles. 2. (SIPUNCULA) A thin layer ...
oblique vein
(ARTHROPODA: Insecta) A slanting cross wing vein.
adj. [L. obliteratus, erased] Indistinct.
adj. [L. oblongus, rather long] Elliptical; elongated; longer than broad.
oblong plates
(ARTHROPODA: Insecta) In aculeate Hymenoptera, the innermost or posterior pair of plates immovably fixed on each side of the bulb and stylet of the sting.
n. [L. oblongus, rather long] (ARTHROPODA: Insecta) In Coleoptera wings, a special oblong cell formed when M 1 is connected with M 2 by means of one or two cross veins.
adj. [L. ob, inverse; ovate, egg-shaped] Inversely eggshaped with narrower end downward.
adj. [L. ob, inverse; pyrum, pear; forma, shape] Inversely pear-shaped.
adj. [L. obscurus, covered] 1. Dark; dark of color; dim. 2. Remote; hidden. 3. Not well defined.
adj. [L. obsitus, barred] Refers to a surface covered with equal scales or other objects; see obimbricate.
n. [L. obsoletus, to wear out] 1. The process of gradual reduction or disappearance of a taxon. 2. A gradual cessation of a physiological process.
adj. [L. obsoletus, to wear out] Obscure; not distinct; atrophied; imperfectly developed.
См. obtected.
obtect pupa
(ARTHROPODA: Insecta) A pupa in which the appendages are glued down to the body by a secretion produced at the larval/pupal molt; see exarate pupa.
adj. [L. obtectus, covered over] Covered; enclosed within a hard covering.
n. [L. dim. obturare, to plug or close] (ARTHROPODA: Insecta) In Anoplura, a connective-like tissue structure that divides the hemocoel of the head from the thoracic ...
n. [L. obturare, to plug or close] Any structure that closes off a cavity.
adj. [L. obtusus, blunt] Blunt or rounded at the extremity; not pointed; see acute.
n. pl. [L. obtusus, blunt; lingua, tongue] (ARTHROPODA: Insecta) In a former classification, those bees with short tongues having an obtuse or bifid tip; see ...
adj. [L. obumbrare, to over-shadow] Overhanging, or partially concealing.
adj. [L. obvertere, to face] 1. Looking head on. 2. Having the base narrower than apex. 3. Being a counterpart.
obverse side of colony
(BRYOZOA) The frontal side of the colony.
adj. [L. obvolvere, to wrap around] Bending downward and inward.
occasional species
A species sometimes found in a particular area, but not habitually.
adj. [L. occiput, back of the head] Pertaining to the occiput or the back part of the head.
occipital arch
(ARTHROPODA: Insecta) The area of the cranium between the occipital and postoccipital sutures.
occipital carina
(ARTHROPODA: Insecta) In Ichneumonidae Hymenoptera, a subcircular carina on the hind aspect of the head, between the vertex and hind margin of the compound eyes and the ...
occipital cilia
see ocular seta.
occipital condyles
(ARTHROPODA: Insecta) A projection on either lateral margin of the postocciput with which the cephaliger of a cervical sclerite articulates; cervical condyle.
occipital foramen
(ARTHROPODA: Insecta) The posterior opening of the head into the cervix; neck foramen; see foramen magnum.
occipital ganglion
(ARTHROPODA: Insecta) A single or paired postcerebral ganglion.
occipital margin
(ARTHROPODA: Insecta) In Mallophaga, the posterior margin of the head.
occipital notch
(ARTHROPODA: Crustacea) In Conchostraca, the angulated indentation at the ear of the cephalon.
occipital suture
(ARTHROPODA: Insecta) A transverse suture sometimes present on the back of the head that separates the vertex from the occiput dorsally and the genae from the postgenae ...
n. pl. [L. occiput, back of the head] (GNATHOSTOMULIDA) An unpaired row of dorsal cilia on the head.
n. [L. occiput, back of the head] (ARTHROPODA: Insecta) 1. The dorsal posterior part of the cranium, between the occipital and postoccipital sutures; in many the boundaries ...
occludent margin
(ARTHROPODA: Crustacea) In Cirripedia, the margin of the scutum and tergum bordering the orifice.
occludent teeth
(ARTHROPODA: Crustacea) In Cirripedia, small projections on the occludent scutal margin interdigitating with the teeth on the margin of the opposed scutum.
occlusion plate
(ARTHROPODA: Insecta) In Heteroptera larvae, a semicircularly shaped plate located below the lateral pore in the ostiole; functioning in scent ejection in any horizontal ...
adj. [L. occludare, to close] An organ or muscle that closes an opening.
adj. [L. occulere, to hide] Hidden from sight.
oceanic zone
The open sea beyond the edge of the continental shelf.
ocellar basin
(ARTHROPODA: Insecta) In Hymenoptera, a concave area, varying in form and size, occupying the median portion of the frontal area.
ocellar bristles
(ARTHROPODA: Insecta) In Diptera, bristles arising close to the ocelli; in the ocellar triangle.
ocellar bulb
see tentacular bulb.
ocellar centers
(ARTHROPODA: Insecta) The brain centers of the ocelli, found in the outer part of the ocellar pedicels.
ocellar group
(ARTHROPODA: Insecta) In Lepidoptera larvae, six ocelli on the lateral area of the larval head, dorsal four forming the quadrant of a circle, ventral two farther apart.
ocellar pair
see ocellar bristles.
ocellar pedicels
(ARTHROPODA: Insecta) Long slender nerve stalks connecting the facial ocelli with the protocerebrum.
ocellar plate
see ocellar triangle.
ocellar triangle
(ARTHROPODA: Insecta) In Diptera, the triangular region bearing the ocelli and often bounded by grooves or depressions.
see ocellus.
see apharyngeate cercaria.
adj. [L. dim. oculus, eye] Eye-like; spotted; having ocelli or eye-like spots.
n.; pl. ocelli [L. dim. oculus, eye] 1. The simple eyes or eyespots, occurring singly or in small groups, found in many invertebrates. 2. (ARTHROPODA: Crustacea) see ...
adj. [Gr. ochros, yellow brown] Pale yellow; brownish-yellow.
adj. [Gr. ochros, yellow brown; leukos, white] Yellowish; whitish yellow; buff.
adj. [Gr. okto, eight; aktis, ray] (PORIFERA) A modified hexactine spicule with 8 rays.
adj. [Gr. okto, eight; meros, part] (CNIDARIA: Anthozoa) Organs or parts of organs arranged in series of 8.
adj. [Gr. okto, eight; aploos, onefold] Cells having 8 chromosome sets in the nucleus (8n).
adj. [Gr. okto, eight; pous, foot] Bearing 8 tentacles, feet or arms; octopody n.
adj. [Gr. okto, eight; prostates, one who stands before] (ANNELIDA: Oligochaeta) Having 8 prostates.
adj. [Gr. okto, eight; theke, case] (ANNELIDA: Oligochaeta) Having 8 spermathecae.
adj. [L. oculus, eye] Of or pertaining to the eyes.
ocular bulla
(ARTHROPODA: Crustacea) A knob on the inner surface of the carapace joining the lower and upper orbital margins with the basal segment of the antenna; functioning to ...
ocular emargination
(ARTHROPODA: Insecta) In Mallophaga, a lateral emargination of the head in front of the eyes.
ocular fleck
(ARTHROPODA: Insecta) In Mallophaga, a black spot in the eyes.
ocular fringe
(ARTHROPODA: Insecta) In Mallophaga, small hairs on the posterior half of the ocular emargination, may extend on the temporal margin.
ocular lobe
(ARTHROPODA: Insecta) On some Coleoptera, a projecting thoracic lobe.
ocular papilla
(ARTHROPODA: Crustacea) In some Malacostraca, the anterior projection on the eyestalk.
ocular peduncle
(ARTHROPODA: Crustacea) A movable peduncle (eyestalk) with a compound eye at the distal end, sometimes with two or three segments, sometimes retractable.
ocular plates
(ECHINODERMATA: Echinoidea) Plates at the terminal end of the ambulacral areas.
ocular sclerites
(ARTHROPODA: Insecta) 1. In some Pseudococcidae, well developed sclerites extending completely around each side, each bearing a row of 7 simple eyes near anterior margin, plus ...
ocular seta
(ARTHROPODA: Insecta) In Diptera, one of several setae occurring in a line near the posterior margin of each compound eye.
ocular sinus
(MOLLUSCA: Cephalopoda) In the Nautilus , an opening on the lateral shell margin accommodating the normal arc of vision of the eyes.
ocular suture
(ARTHROPODA: Insecta) An annular inflection surrounding the compound eyes.
ocular tube
(SIPUNCULA) A tubular depression in the brain containing the pigment of the eyespots or eyes.
ocular tubercles
(ARTHROPODA: Insecta) In Hemiptera, supplementary eyes with prominent facets on the posterior area, in addition to the compound eyes.
n.; pl. -ia [L. oculus, eye] (ARTHROPODA: Insecta) 1. The area around the simple eye or eyes of larvae. 2. In Hymenoptera sawflies, the pigmented area.
adj. [L. oculus, eye; fero, bear] Bearing eyes.
adj. [L. oculus, eye; movere, to move] The nerve center of muscle that moves the eye.
n.; pl. oculi [L. oculus, eye] The eye; a spot shaped like an eye.
adj. [Gr. odous, tooth] Having teeth.
adj. [Gr. odous, tooth] (ARTHROPODA: Insecta) Of or pertaining to the Odonata.
n. [Gr. odous, tooth] (NEMATA) The stomatal armature generally in the form of a tooth or teeth originating from the anterior stoma (cheilostome); see onchium.
n. [Gr. odous, tooth; blastos, bud] (MOLLUSCA: Gastropoda) Cells in the radular sac that secrete the radular teeth.
see occipital condyles.
n. [Gr. odous, tooth; phoreus, bearer] 1. (MOLLUSCA: Gastropoda) The cartilaginous supporting organ of the radula, tongue or lingual ribbon possessing a complicated ...
См. odontostylet.
n. [Gr. odous, tooth; stylos, column] (NEMATODA: Adenophorea) A stylet derived from an odontium terminating with a dorsally oblique aperture, and originating in the ...
odor trail
(ARTHROPODA: Insecta) A chemical trace laid down by one insect to be followed by other insects of the same species or nest; the substance is called trail pheromone or trail ...
odoriferous glands
see scent glands.
См. ooecium.
- see ecoOnline Dictionary of Invertebrate Zoology 627.
См. oedoeagus.
См. oedoeagus.
see aedeagus.
n. pl. [Gr. oinos, wine; kytos, container] (ARTHROPODA: Insecta) Large cells in a group on either side of each abdominal segment, between the bases of the epidermal cells and ...
n. [Gr. oinos, wine; kytos, container; eidos, form] (ARTHROPODA: Insecta) Round or oval cells, with darkly staining nucleus and clear, uniform, weakly acidophil cytoplasm. ...
См. oeruginus.
see aeruginous.
see esophagus.
see estrus.
official index
A list of names or works suppressed or declared invalid by the ICZN.
official list
A list of names or works declared to be valid by the ICZN.
adj. [F. ogive, pointed arch] Bearing the shape of an arch.
n. [Gr. oikos, house; sitos, food] An attached or stationary commensal or parasite.
adj. [L. olfacere, to smell] Pertaining to the sense of smell; among invertebrates, the organs are variously placed: antennae of insects and other arthropods, tips of the palpi ...
olfactory cone
see sensillum basiconicum.
olfactory hair
see aesthetasc.
olfactory lobes
(ARTHROPODA) In the midbrain or deutocerebrum.
olfactory papilla
(MOLLUSCA: Cephalopoda) Papilla found on Teuthoidea, Sepiidae and Vampyromorpha on either side of the head near the neck.
olfactory pits
(MOLLUSCA: Cephalopoda) In Octopodidae, olfactory pits on either side of the head near the neck.
olfactory pores
see sensillum campaniformium.
n. [Gr. oligos, few; genos, descent] A gene determining a pronounced phenotypic effect; see polygenes.
n. [Gr. oligos, few; gyne, female] (ARTHROPODA: Insecta) Several functional queens in a colony.
see paucispiral.
oligolecithal egg
An egg with a small amount of yolk; isolecithal; see centrolecithal egg, telolecithal egg.
adj. [Gr. oligos, few; lektos, chosen] (ARTHROPODA: Insecta) Selecting only a few, as bees collecting pollen from only a few kinds of flowers; oligotropic.
adj. [Gr. oligos, few; meros, part] Having fewer parts or organs than other related forms. oligomery n.
see Endopterygota.
adj. [Gr. oligos, few; nephros, kidney] Having few excretory tubules.
adj. [Gr. oligos, few; neuron, nerve] (ARTHROPODA: Insecta) Having very few wing veins.
См. Oligoneoptera.
adj. [Gr. oligos, few; phagein, to eat] Feeding on only a few species of food plants; see monophagous.
adj. [Gr. oligos, few; phyle, tribe] Derived from a few ancestral forms; see monophyletic.
adj. [Gr. oligos, few; pneustikos, of breathing] (ARTHROPODA: Insecta) Having one or two functional spiracles on each side, including the amphipneustic, metapneustic and ...
n. [Gr. oligos, few; pous, foot] 1. Bearing few legs. 2. Having fully developed thoracic legs; see polypod, protopod.
oligopod larva
see campodeiform larva.
adj. [Gr. oligos, few; pyren, stone of a fruit] With reduced number of functional spermatozoa; see apyrene, eupyrene.
adj. [Gr. oligos, few; sapros, putrid] Describing a body of water with slow organic matter decomposition and high oxygen content.
n. [Gr. oligos, few; taxis, arrangement] Weak development of secondarily formed organs (usually not numerous).
adj. [Gr. oligos, few; thermos, heat] Having a tolerance for low temperatures.
adj. [Gr. oligos, few; tokos, offspring] Having a small number of young.
n. [Gr. oligos, few; trichos, hair] Few, weakly developed setae.
adj. [Gr. oligos, few; trophe, food] Pertaining to freshwater bodies poor in plant nutrients and unproductive.
adj. [Gr. oligos, few; tropikos, turning] (ARTHROPODA: Insecta) Visiting only a few kinds of flowers for nectar; oligolectic; see monotropic, polytropic.
adj. [Gr. oligos, few; xenos, host] Said of certain parasites adjusted to live in a limited number of hosts; oligoxeny n.
adj. [Gr. oligos, few; zoon, animal] Having a few species or numbers of animals in a particular habitat.
adj. [L. oliva, olive] Resembling or having the color of olive green.
adj. [L. oliva, olive; forma, shape] Oval; resembling an olive in shape.
n. [Gr. olynthus, unripening fig] (PORIFERA) In calcareous forms, a post-settlement stage; in asconoid forms, remains as adult form.
(ECHINODERMATA: Crinoidea) A branchlet issuing from the terminal axial of the main-axil.
see ommatidium.
n. [Gr. ommation, little eye] (ARTHROPODA: Insecta) A compound eye.
n.; pl. -ia [Gr. ommation, little eye; idion, dim.] (ARTHROPODA) One of the component units of a compound eye, consisting essentially of an optical (light gathering) part and ...
see ommochrome.
n. [Gr. omma, eye; eidos, form] (ARTHROPODA: Chelicerata) In some Arachnida, a light colored spot on the posterior body segment.
n. [Gr. omma, eye; pherein, to bear] (MOLLUSCA: Gastropoda) A movable process bearing an eye, as in snails; may be fused with the tentacles.
n. [Gr. omma, eye; chroma, color] A group of pigments, products of tryptophane metabolism, found in eyes and epidermis of certain invertebrates; it is apparently not ...
adj. [L. omnis, all; vorare, to devour] Capable of obtaining nourishment from both animal and plant tissue.
adj. [Gr. omphalos, the navel] (ARTHROPODA: Insecta) Referring to the orifice (excluding ostiole) of the metathoracic scent gland of Heteroptera as median and unpaired.
n; see diastomian.
adj. [Gr. omphalos, the navel] (MOLLUSCA: Gastropoda) Having a shell with an umbilicus.
onchial plate
(NEMATODA: Adenophorea) In Enoplida, the basal plate of the onchium.
see odontophore.
see odontostyle.
n.; pl. onchia [Gr. onkinos, hook] (NEMATA) Stomatal armature, generally in the form of a tooth or teeth originating from the posterior stoma (esophastome); see odontium, ...
n. [Gr. onkinos, hook; merakidion, youth] (PLATYHELMINTHES: Trematoda) 1. A term for an embryo in the egg. 2. The ciliated larva of a monogenetic trematode.
См. oncosphere.
adj. [Gr. onkos, swelling; gennaein, to produce] Tumor causing.
n. [Gr. onkos, swelling; physis, growth] (ARTHROPODA: Chelicerata) Any extension of an arthrodial membrane, usually in the form of a more or less hyaline intumescence; see ...
n. [Gr. onkinos, hook; sphaira, ball] (PLATYHELMINTHES: Cestoda) The shelled embryo; a hexacanth; the first larval stage.
onisciform larva
see platyform larva.
n. [Gr. onoma, name; pherein, to carry] A name-bearer; a type.
n. [Gr. on, being; genesis, beginning] The development or course of development of an individual organism from zygote to maturity; as distinguished from that of a species; ...
n. pl. [Gr. onyx, claw; chaite, hair] (PORIFERA) Microscleres with long, thin oxeote spicules, roughened with spines.
see tarsal claws.
see pulvilli.
n.; pl. -ia [Gr. onyx, claw] (ARTHROPODA: Insecta) A general term for a pad between the tarsal claws.
См. onychophorans.
n.; n. pl. [Gr. onyx, claw; phorein, to carry] A phylum of terrestrial animals comprised of a single class or order of the same name, frequently referred to as Peripatus ; ...
n. [Gr. oion, egg; blastos, bud] A cell from which an ovum develops.
n. [Gr. oion, egg; blastos, bud] A fertilized egg; an oosperm.
n. [Gr. oion, egg; L. captus, capture] (PLATYHELMINTHES: Cestoda) A controlling spincter of the oviduct that allows mature oocytes to enter the proximal oviduct.
n. [Gr. oion, egg; kystis, pouch] The cystic form in the parasitic protozoans (Apicomplexa), resulting from sporogony; may be hard covered, with a resistant membrane ...
n. pl. [Gr. oion, egg; kytos, container] An immature female gamete that undergoes meiosis, giving rise to ova or eggs.

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