Слова на букву inte-macr (732) Dictionary of invertebrate zoology
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Слова на букву inte-macr (732)

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n. [Gr. karyon, nucleus; rhexis, rupture] Nuclear degeneration by nuclear fragmentation.
n. [Gr. karyon, nucleus; soma, body] Irregular clump of chromatin dispersed in the chromatin cell network.
n. [Gr. karyon, nucleus; theke, a box] Nuclear membrane.
n. [Gr. karyon, nucleus] Chromatin.
n. [Gr. karyon, nucleus; typos, image] The particular chromosome complement of an individual or species, as defined by both number and morphology of the chromosomes, ...
see catabolism.
n. [Gr. kata, down; genesis, beginning] Retrogressive evolution.
see catakinesis.
see cataplexy.
n. [Gr. kata, down; trepein, to turn] 1. (ARTHROPODA: Insecta) In blastokinesis, the movement of the embryo inside the egg from one pole to another. 2. Refers to different ...
see infraepimeron.
see infraepisternum.
adj. [Gr. katharos, pure; bios, life] Pertains to living in clean water.
see cation.
Keber's valve
(MOLLUSCA: Bivalvia) Pericardinal gland, connecting the pedal and visceral hemocoels.
n. [A.S. ceol, ship] 1. A prominent ridge or carina. 2. (BRYOZOA) a. In Stenolaemata, a flat median portion of the zooidal wall between sinuses in recumbent part of ...
Keferstein bodies
(SIPUNCULA) Small oval bodies on the inner or coelomic surface of the body wall.
n. [Gr. kenos, empty; zoon, animal; eidos, like] (BRYOZOA) 1. In Stenolaemata, a polymorph without a lophophore, gut, muscles, and orifice. 2. In Gymnolaemata, a ...
n. [Gr. kentor, piercer; gone, that which generates] (ARTHROPODA: Crustacea) In Rhizocephala, undifferentiated cells formed after the cyprid larval molts and its appendages ...
n. [Gr. kentor, piercer; morphe, form] (ARTHROPODA: Insecta) A change brought about by environmental stimuli (high or low population density) in phasmatids, locusts, the ...
n. [Gr. kentor, piercer] (ARTHROPODA: Crustacea) In Rhizocephala, a hollow stylet in the anterior body of a kentrogon that invades the antennule and pierces the integument ...
n. [Gr. keras, horn] A sulfur-containing nitrogenous compound found in animal tissues such as horn, hair and nails.
n. [Gr. keras, horn] Conversion of tissues into keratin or keratin-like tissue; see cornification.
adj. [Gr. keras, horn] Having horny fibers in the skeletal structure, as in certain Porifera.
(Generic name) A red dye made from the dried bodies of female coccids of kermococcus ilicis; granum tinctorium.
n. [ME. key] A tabulation of diagnostic characters of organisms most often in dichotomous couplets facilitating rapid identification.
kidney shaped
Shaped like a kidney; reniform.
См. kinesthesis.
n. [Gr. kinein, to move; -asis, enzyme] Enzymes that catalyse the transfer of high energy groups from a donor to an acceptor; named for acceptor; enzyme which activates a ...
n. [A.S. cyng] (ARTHROPODA: Insecta) In social Hymenoptera and Isoptera, a primary reproductive male that along with the queen loses its wings after founding the colony.
n. [A.S. cyngdom] The largest primary taxonomic division; organisms usually divided into three kingdoms, plants, animals and Protista.
see centromere.
n. [Gr. kinein, to move; plasma, formed or molded] A former name for a distinct type of protoplasm which tends to form fibrillar structures and is mechanically active.
См. kinorhynchs.
n., n. pl. [Gr. kinein, to move; rhynchos, snout] A phylum of free-living marine invertebrates, with joined segments and spines; sometimes called the Echinoderida or ...
kitchen midden
n. [Dan. kjokkenmodding; kitchen leavings] The kitchen refuse heap of sea shells and bones of ancient dwellings along the coast of northern Europe, eastern and western United ...
n. [Gr. klinein, to bend; kinesis, movement] A non-directional response in which the rate of turning depends on the intensity of stimulation; trial-and-error reaction; see ...
n. [Gr. klinein, to bend; taxis, arrangement] Orientation and movement toward a stimulus by an organism by moving its head or whole body from side to side symmetrically; see ...
(ARTHROPODA: Chelicerata) Segment of the legs between ascending and descending part; called genu in mites and patella in other chelicerates.
Koelliker's canal
(MOLLUSCA: Cephalopoda) In Incirrata, a small blind tube that opens into the endolymph sac of the statocyst; function unknown.
Koelliker's tufts or organs
(MOLLUSCA: Cephalophoda) Groups of stiff bristles on the skin of most embryos and hatching octopods.
adj. [Gr. kolytikos, hindering] Inhibiting or inhibitory.
n. [Gr. koreios, youthful or maiden; gamos, marriage] The impregnation of a female possessing a fully developed vagina and uterus but an immature ovary; coryogamy.
Koshevnikov gland
См. Koshewnikow gland.
Koshewnikow gland
(ARTHROPODA: Insecta) A gland consisting of or corresponding to Leydig cells and the sting of numerous bees, that produce an attractant pheromone in honey bee queens.
Krause's membrane
see Z-band or disc.
Krebs' cycle
Energy cycle; stepwise enzymatic oxydation of simple sugars to give high energy phosphate bonds (ATP)
n. [Gr. kyphos, humpbacked; rhabdo, rod] (PORIFERA) A strongyle with a row of tubercles along one side.
pl. of labellum.
labellar abductor apodeme
(ARTHROPODA: Insecta) In Diptera, a small cuticular process below the inner basal margin of each labellum, where the labellar abductor muscle attaches.
labellar basal sclerites
(ARTHROPODA: Insecta) In Diptera, ventral sclerites in the membranous articulation between the prementum and the labella of the labium; basal sclerite.
labellar mesial sclerite
(ARTHROPODA: Insecta) In Diptera, two narrow sclerotized strips on the inner surface of each labellum; mesial sclerite.
labellar sclerite
(ARTHROPODA: Insecta) In Diptera, one of several cuticular plates of each labellum; the prominent basal sclerite; the furca of the labellum.
n.; pl. -la [L. dim. labrum, lip] (ARTHROPODA: Insecta) One of variously expanded apexes of the labium; the bouton or flabellum of bees.
adj. [L. dim. labrum, lip] Pertaining to lip or labium.
labial area
(MOLLUSCA: Gastropoda) The flattened or callus-coated surface extending from inner lip of the shell.
labial disc
(NEMATA) A circular elevation of cuticle surrounding the oral opening; perioral disc.
labial glands
(ARTHROPODA: Insecta) Salivary glands in the majority of insects, situated below the anterior part of the alimentary canal; ducts originating from these glands unite into a ...
labial gutter
see premental gutter.
labial kidneys
see labial nephridia.
labial lumen
see premental gutter.
labial mask
(ARTHROPODA: Insecta) A modification of the labium of dragonfly larvae in which the pre- and post-mentum are elongated and the palps modified into grasping organs for ...
labial nephridia
(ARTHROPODA: Insecta) Tubules in the head of Collembola and Thysanura, whose terminal sac may play some excretory role.
labial palp
См. labial palpus.
labial palpus
pl. -pi. 1. (ARTHROPODA: Insecta) One of a pair of small feelerlike structures borne on the labium; see maxillary palp,. 2. (MOLLUSCA: Bivalvia) One of 4 structures (2 on ...
labial plate
(ARTHROPODA: Insecta) A sclerotized, serrated plate derived from the labium of larvae of aquatic Diptera; mental plate.
labial stipes
see labiostipes.
labial suture
(ARTHROPODA: Insecta) Suture on the labium between the postmentum and the prementum.
labial veil
see oral lappets.
adj. [L. labium, lip] Having lips or lip-like parts or thickened margins.
adj. [Gr. labis, forcepts; pherein, to carry] Having pincer-like organs.
n. pl.; sing. labiellum [L. dim. labium, lip] 1. (ARTHROPODA: Chilopoda) A mouth part of a myriapod. 2. (ARTHROPODA: Insecta) The hypopharynx; the median mouthpart.
adj. [L. labilis, slipping] Readily changeable; unstable.
n. pl. [L. dim. labium, lip; stipes, stem] (ARTHROPODA: Insecta) A portion of the basal part of the labium.
see socii.
n.; pl. -bia [L. labium, lip] 1. A lip. 2. (ARTHROPODA: Chelicerata) In Araneae, the lower lip, forming the floor of the mouth cavity. 3. (ARTHROPODA: Crustacea) The ...
adj. [L. labrum, lip] 1. (ARTHROPODA: Insecta) Pertaining to the upper lip. 2. (MOLLUSCA: Gastropoda) Pertaining to the outer lip of a shell.
n. [L. labrum, lip; palatum, roof of mouth] (ARTHROPODA: Insecta) In Diptera, the oral surface of the labrum of mosquitoes; a division of the palatum; see ...
n.; pl. -bra [L. labrum, lip] 1. A lip or edge. 2. (ARTHROPODA: Chelicerata) In Araneae, has been incorrectly used for the labium. 3. (ARTHROPODA: Crustacea) The unpaired ...
(ARTHROPODA: Insecta) The mouth part representing the labrum and epipharynx.
n. [Skr. laksa] (ARTHROPODA: Insecta) A yellowish or reddishbrown resinous substance secreted by a homopterous scale insect in the family Kerridae (=Tachardiidae, ...
adj. [L. lacer, torn] Having edges jagged or irregular.
n.; pl. laciniae [L. lacinia, flap] 1. (ARTHROPODA: Crustacea) The inner distal spiny lobe of the second segment of the maxillula. 2. (ARTHROPODA: Insecta) a. In many, ...
См. lacinea.
lacinia mandibulae
see lacinia mobilis.
lacinia mobilis
1. (ARTHROPODA: Crustacea) A small, generally toothed process articulated with the incisor process of the mandible. 2. (ARTHROPODA: Insecta) A small movable lobe-like ...
adj. [L. lacer, torn] Slashed or cut into irregularly narrow lobes or deep segments.
adj. [L. lac, milk] Of white or milky color.
adj. [L. lactescere, to turn to milk] Like milk in appearance; yielding or secreting a milky fluid.
lactic acid
Organic acid formed in tissues of two molecules for every molecule of glucose used where oxygen is in short supply.
n.; pl. -ae [L. lacuna, cavity] 1. A space, gap, cavity or channel. 2. (ACANTHOCEPHALA) Channels making up the lacunar system. 3. (ARTHROPODA: Insecta) In wing ...
lacunar system
(ACANTHOCEPHALA) The circulatory system.
adj. [L. lacuna, cavity] Marked by shallow, scattered depressions; pitted.
adj. [L. lacus, lake] Of or pertaining to living in or near a lake.
n; pl. -ae [Gr. laios, left; torma, socket] (ARTHROPODA: Insecta) In beetle larvae, transverse sclerite extending inward from the left hind angle of the epipharynx, ...
adj. [Gr. laios, left; tropos, turn] Of or pertaining to the left; sinistral; opposed to dexiotropic.
n. [L. lagaena, flask] 1. Bottle-shaped; dilated below and tapering to a narrow neck above; lageniform. 2. (ARTHROPODA: Insecta) In Lepidoptera, the smaller lobe of the ...
A theory espoused by Lamarck, that evolution is brought about by volition or by environmental induction; Geoffroyism.
n.; pl. -ae [L. lamella, small plate] 1. A thin plate or leaflike structure. 2. (ARTHROPODA: Chelicerata) A triangular plate on the promargin of the cheliceral fang furrow ...
lamellar ligament
(MOLLUSCA: Bivalvia) That part of the ligament secreted by the mantle edge that is lamellar in structure and contains no calcium carbonate; elastic to both compression and ...
adj. [L. lamella, small plate] Composed of or covered by thin scales, plates or layers.
lamellate antennae
(ARTHROPODA: Insecta) Antennae with an asymmetrical 3- to 7-segmented club of more or less flattened segments.
see Class Bivalvia, Phylum Mollusca.
adj. [L. lamella, small plate; Gr. branchia, gills] (MOLLUSCA) With plate-like gills that are bilaterally symmetrical; bilaterally compressed, symmetrical body.
adj. [L. lamella, small plate; cornu, horn] Having the joints of the antenna expanded into flattened plates.
adj. [L. lamella, small plate; forma, shape] Having the form of scales, thin plates or layers.
(MOLLUSCA) Referring to shells with one portion composed of fibers and another of laminae.
see plasmatocyte.
adj. [L. lamella, small plate] Composed of lamella.
n.; pl. -nae, -nas [L. lamina, a plate] 1. A thin plate, scale or layer. 2. (ARTHROPODA) A distal synaptic region in the optic lobes. 3. (NEMATA) The main body of the ...
lamina lingualis
pl. laminae linguales (ARTHROPODA: Diplopoda) One of two median distal plates in the gnathochilarium.
lamina of insertion
see insertion plate.
lamina phalli
(ARTHROPODA: Insecta) In Caelifera, endophallic membrane sclerotizations restricting the spermatophore sac.
adj. [L. lamina, plate] Arranged in thin plates or layers; laminiform.
adj. [L. lamina, plate] Composed of leaf-like, overlapping plates or scales.
adj. [L. lamina, plate; forma, shape] Laminar.
lampbrush chromosomes
Very large chromosomes with fine lateral projections; found in invertebrates and vertebrates.
adj. [L. lana, wool] Covered with long, very fine or wooly hairlike filaments.
adj. [L. lanceola, little lance] Tapering to a point at the apex, or sometimes at both ends; lance-shaped.
n. [L. lancea, light spear] 1. Any piercing structure. 2. (ARTHROPODA: Insecta) a. In Hymentoptera, the first valvulae. b. The first gonapophyses of Apis. 3. [NEMATODA] ...
v.t. [L. lancinare, to tear to pieces] To tear, lacerate, pierce or stab.
Lang's vesicle
(PLATYHELMINTHES: Turbellaria) A blind extension of the female canal of certain Acotylea, proximal to where the oviducts join.
n. [L. lanterna, lantern] 1. (ARTHROPODA: Insecta) The light organs of fireflies and certain beetles. 2. (MOLLUSCA: Cephalopoda) The photophore; see Aristotle\'s lantern.
adj. [L. lanugo, down] Covered with very fine soft hair.
adj. [L. lapis, stone; colere, to inhabit] Living under stones.
adj. [L. lapis, stone] Of the nature of a stone.
n. [A.S. laeppa, a loose hanging part] 1. A fold, small flap, lobe or loose hanging portion. 2. (ARTHROPODA: Crustacea) In Mysidacea, a ventrally projecting subdivision of ...
n.; pl. -ae [L. larva, mask] The preadult stage in some invertebrates after hatching from the egg, lacking adult features, usually active and feeding; larval adj..
larval shell
(MOLLUSCA: Gastropoda) The hard parts of a pelagic larva before it settles down and undergoes metamorphosis.
larval stages
The period of growth between molts.
larval stem nematogen
(MESOZOA: Rhombozoa) In Dicyemida, an early stage in development.
larval-pupal apolysis
(ARTHROPODA: Insecta) In Diptera, the interim before the cryptocephalic pupa; see pupal-adult apolysis.
n. [L. larva, mask; -arium, place of a thing] A nest or case made by a larva as a shelter.
see pupa larvata.
adj. [L. larva, mask; forma, shape] Shaped like a larva.
adj. [L. larva, mask; parere, to produce] Producing by bringing forth living larvae; viviparous; see oviparous.
n. [L. larva, mask; ponare, to place] (ARTHROPODA: Insecta) A modified ovipositor.
adj. [L. larva, mask; vorare, to devour] Larvae eating.
n. [Gr. lasios, wooly; pous, foot] (ARTHROPODA: Crustacea) A cirral appendage of barnacles, with a transverse row of setae at each articulation; see acanthopod, ctenopod. ...
n. [L. laqueus, snare, noose] 1. (CNIDARIA) Fibrils, thought to be contractile, extending down the stalk of a cnidoblast securing the nematocyst. 2. (NEMATA) Circular ...
lasso cell
see coloblast.
last whorl
(MOLLUSCA: Gastropoda) In coiled shells, last-formed complete volution of a helicocone.
pl. of latus.
adv. [L. latus, side; ad, toward] Toward the side, directed away from the midline of the body.
adj. [L. latus, side] 1. Of or pertaining to the side; situated at, coming from, or directed towards. 2. (ARTHROPODA: Crustacea) In Cirripedia, one of a pair of ...
lateral abdominal gills
(ARTHROPODA: Insecta) In a few genera of Odonata, filamentous (or true abdominal appendages) on either side of the 2nd to 7th or 8th abdominal segments.
lateral ala
(NEMATA) Lateral longitudinal expansions or incisures.
lateral apodeme
see endopleurite.
lateral bar
(ARTHROPODA: Crustacea) In Acrothoracica, one of a pair of external chitinous thickenings, extending from the apertural thickenings medially down each side of the mantle ...
lateral carina
(ARTHROPODA: Crustacea) In Conchostraca, a narrow ridge on the side margin of the carapace.
lateral cilia
(MOLLUSCA: Polyplacophora) Cilia on the flat surfaces of the leaflets of the ctenidia.
lateral comb
(ARTHROPODA: Insecta) In Diptera, lateral spines or scales on the eighth abdominal segment of mosquito larvae.
lateral commissures
1. (ANNELIDA) Commissural blood vessels. Paired segmental lateral blood vessels from the dorsal vessel to anteriorly join the ventral vessel and more posteriorly, the ...
lateral cups
(ARTHROPODA: Crustacea) Paired elements of the nauplius eye; absent in malacostracans.
lateral denticle
(ARTHROPODA: Crustacea) In Stomatopoda, small projection at the base of each lateral tooth on the terminal abdominal segment.
lateral facials
(ARTHROPODA: Insecta) In Diptera, one or more bristles on each side of the face below and toward the eye.
lateral field
see lateral line, lateral ridge.
lateral filaments
(ARTHROPODA: Insecta) Cerci on the margins of the abdomen in some aquatic larvae.
lateral frontal organs
(ARTHROPODA: Insecta) In most Apterygota, separate capsules containing the median neurosecretory cells on the dorsal side of the brain.
lateral gonapophyses
(ARTHROPODA: Insecta) In female Odonata, a pair of chitinous processes of the ovipositor on the 9th abdominal segment.
lateral hearts
see commissural vessels.
lateral hinge system
(MOLLUSCA: Bivalvia) Hinges in some prodissoconchs both anterior and posterior to the provinculum.
lateral line
1. (ANNELIDA: Oligochaeta) In aquatic forms, the line formed by the nuclei of the fibers of the circular muscles. 2. (ARTHROPODA: Insecta) In eruciform Trichoptera, finely ...
lateral lips
1. (ARTHROPODA: Chelicerata) In Acari, lateroventral protuberances anterior to the mouth; joined to the labrum usually, and the labium when present. 2. (NEMATA) Lateral ...
lateral longitudinal carina
(ARTHROPODA: Insecta) In ichneumonid Hymenoptera, the longitudinal carina of the propodium on each side laying between the median and pleural carinae.
lateral mesentaries
(CNIDARIA: Anthozoa) In Zoantharia, the mesentaries, excluding directive or dorsal and ventral pairs.
lateral ocelli
see stemma.
lateral organs
1. (ANNELIDA: Polychaeta) Ciliated sensory structures located between the notopodium and neuropodium of each parapodium; see dorsal organ. 2. (NEMATA) The amphids.
lateral oviduct
(ARTHROPODA: Insecta) Paired canals of the female system, leading from ovaries, frequently mesodermal, and joining the common (median) oviduct.
lateral penellipse
(ARTHROPODA: Insecta) In lepidopterous larvae, an almost complete circle of crochets, open or incomplete, toward the meson; see penellipse.
lateral ridge
(NEMATA) The ridge formed by two contiguous lateral lines, when seen in cross-section or with SEM; lateral field ridges.
lateral skeletal projections
(BRYOZOA: Stenolaemata) Skeletal structures in living chambers opposite the feeding organs; including hemisepta, hemiphragms, ring septa, mural spines, and skeletal ...
lateral teeth
(MOLLUSCA: Bivalvia) Interlocking teeth, not functioning as a hinge, but serving to prevent valves from sliding upon each other when closed.
n. [L. latus, side] 1. (ARTHROPODA: Crustacea) Lateral plates, variable in number, of lepadomorphs and balanomorphs. 2. (GNATHOSTOMULIDA) Lateral paired sensory bristles ...
adj. [L. latus, side; gradus, step] Walking sideways, as some spiders and crabs.
see pygidial fringe.
n. [L. latus, side; LL. cranium, skull] (ARTHROPODA: Insecta) The region of the head comprised of the genae and postgenae.
adj. [L. latus, side; frons, front] Situated on the side but towards the front.
lateromarginal expansion
(ARTHROPODA: Insecta) The median part of the marginal region of the phallobase of scarabaeoid beetles, characterized by an expansion of the margin into the lateral ...
lateropleural area
(MOLLUSCA: Polyplacophora) The upper portion of the side slopes of an intermediate valve; denoting sculpture of a valve, lacking demarcation between the lateral and pleural ...
lateroproximal marginal region
(ARTHROPODA: Insecta) A lateral marginal region of the phallobase of scarabaeoid beetles, extending from the articulation with the tectum to where the margin and rugula ...
n. [L. latus, side; Gr. sternon, breast; -ites, part] (ARTHROPODA: Insecta) Lateral plates at the sides of the eusternum in Isoptera, Dermaptera, and Blattaria.
n. [L. latus, side; tergum, back; -ites, part] (ARTHROPODA) A lateral or dorsolateral tergal sclerite.
adj. [L. latus, side; venter, belly] To the side (away from the midline of the body) and below.
adj. [L. latus, side; vertere, to turn] Displaced toward the side of the body; laterally displaced.
laticorn trumpet
(ARTHROPODA: Insecta) In Diptera, a respiratory structure of mosquito pupae bearing the longest axis transverse to the stem, frequently with a secondary cleft in the pinna ...
adj. [L. latus, broad; costatus, ribbed] Broad-ribbed.
adj. [L. latus, broad; Gr. gaster, stomach] (ARTHROPODA: Chelicerata) Pertaining to those of the subphylum that are broadly joined between prosoma and opisthosoma; see ...
adj. [L. latus, broad; rostrum, beak] Having a broad rostrum; see angustirostrate.
n. [ Latrodectus sp.; L. latro, brigand; Gr. dektes, biter; L. -ism, condition] (ARTHROPODA: Chelicerata) In Arachnida, envenomation of humans by Latrodectus (black widow) ...
adj. [Gr. latte, lath] To cross or interlace; cancellated.
n.; pl. latera [L. latus, side] (ARTHROPODA) 1. The side of the body. 2. (ARTHROPODA: Crustacea) In Cirripedia, any of the capitular plates except paired scuta and terga ...
Laurer's canal
(PLATYHELMINTHES: Trematoda) In Digenea, a tubular canal extending from the base of the seminal receptacle; sometimes opening dorsally to the exterior; Laurer-Stieda ...
n. pl. [A.S. dim. leaf] (MOLLUSCA: Bivalvia) A double row of flat, triangular, ciliated processes on the ctenidia of Protobranchia that project into the mantle cavity for ...
n. pl. [Gr. leberis, shed skin; kytos, container] (ARTHROPODA: Chelicerata) In Arachnida, glycogen containing cells that develop from and back to leucocytes during ...
n. [Gr. lektos, choose; allos, other; typos, type] A subsequent specimen of the opposite sex of the lectotype chosen from the original material.
n. [Gr. lektos, choose; typos, type] A specimen selected from a syntypic series that, subsequent to the publication of the original description, is selected and designated ...
left valve
(MOLLUSCA: Bivalvia) While holding the bivalve shell with the hinge up and the apex or umbo pointed away from the pallial sinus toward the holder, the left valve is to ...
n. [Sw. lika, to play] (ARTHROPODA: Insecta) A communal display area where males congregate for the purpose of attracting and courting females, and to which females come for ...
n. [Gr. lemniskos, ribbon] A clubshaped organ.
См. lemniscata.
n.; lemnisci pl. [Gr. lemniskos, ribbon] (ACANTHOCEPHALA) One of a pair of elongate structures attached to the neck region and extending into the trunk cavity; may act as a ...
see Schwann cell.
n. [A.S. lang, long] (MOLLUSCA: Bivalvia) Greatest dimension by a projection of the shell extremities onto the cardinal axis.
adj. [L. lentus, slow, viscous] Living in still water; applied to organisms that inhabit swamps, ponds or lakes; see lotic.
n.; pl. lenses [L. lens, lentil] Transparent covering of the eye, serving to focus the rays of light.
См. lenitic.
adj. [L. lenticularis, lentil-shaped] Having the form of a biconvex lens.
adj. [L. lens, lentil; gerere, to bear] Having a lens.
adj. [Gr. lepis, scale; pteron, wing; -ismos, denoting condition] (ARTHROPODA: Insecta) Any pathological condition caused by the Lepidoptera; see erucism, paraerucism, ...
n. [Gr. lepis, scale; kytos, container] A nucleated cell with a cell wall; see gymnocyte.
adj. [L. lepra, scaly] Having loose irregular scales; scalelike; covered with scales.
see campodeiform larva.
n. [Gr. leptos, thin; blastos, bud] (BRYOZOA) A floatoblast that quickly germinates after release from the parent colony.
adj. [Gr. leptos, thin; deras, hide, leather] (NEMATA) With caudal alae restricted to two sides of the body and not surrounding or meeting posterior to the tail tip; see ...
n. [Gr. leptos, thin; nema, thread] A chromatin thread or chromosome at leptotene stage of prophase I in meiosis; sometimes used as a synonym of leptotene stage; see ...
adj. [Gr. leptos, thin; pelagos, sea] Extremely fine living or non-living material floating in sea water.
n. pl. [Gr. leptos, thin; phragma, hedge, fence] (ARTHROPODA: Insecta) In cryptonephridial forms, specialized cells at points of attachment of Malpighian tubules to the ...
adj. [Gr. leptos, thin; stratos, covered] (ECHINODERMATA: Asteroidea) Having the ambulacral plates narrow and crowded together.
n. [Gr. leptos, thin; tainia, ribbon] Early stage of prophase I in meiosis with chromosomes appearing as fine threads, although made up of two chromatids which are not ...
n. [Gr. leptos, thin; It. tromba, trumpet] (ARTHROPODA: Chelicerata) The slender larva of the thrombiculid mite that transmits Tsutsugamushi disease, also known as Japanese ...
n. [Gr. leptos, small] (ARTHROPODA: Chelicerata) In Acari, larval form of mites with 6 legs.
n. [Native name, lit., sweet] (ARTHROPODA: Insecta) In australian jumping plantlice, a scale or test on leaves or small twigs under which sedentary nymphs of Spondyliaspinae ...
n. [L. laedere, to injure] In plants or animals, a wound or injury causing circumscribed pathological change in tissues, including a change or loss of function.
n. [Gr. lestes, robber; biosis, manner of life] (ARTHROPODA: Insecta) In Hymenoptera, a type of symbiosis in which a group of \'thief ants\' of small size nest in or near ...
lethal factor
see balanced lethals.
n.; pl. -gies [Gr. lethargios, drowsy] A state of inaction.
n. [L. lethum, death; similis, like] Feigning death; thanatosis.
n. [Gr. leukos, white] An amino acid, x-amino isocaproic acid found in tissues of various invertebrates.
n. [Gr. leukos, white; blastos, bud] The developing leucocyte; a precursor of a leucocyte; a proleucocyte; a prohemocyte; leukoblast.
see plasmatocyte.
see leuconoid grade or type.
leuconoid grade or type
(PORIFERA) A grade of construction of sponges in which the choanocyte chambers are small, and distributed through the interior tissues; see asconoid grade, synconoid ...
see pterine (pteridine) pigments.
n. [L. levare, to raise] The raising of the leg or a part of the leg; part of protraction.
n. [L. levare, to raise] Any muscle serving to raise an organ or part.
levels of integration
Levels of complexity in structures, patterns, or associations when new properties emerge that could not have been predicted from the properties of the component parts.
adj. [L. levigare, to make smooth] Smooth surfaced; polished.
Leydig cells
1. Secretory cells of various glands. 2. (ARTHROPODA: Insecta) In Hymenoptera, produces an attractant pheronome in Apis; mandibular gland and Koshevnikov gland. 3. ...
life cycle
The complete series of successive forms through which any particular kind of organism passes in the course of its development to maturity.
n. [L. ligare, to bind] 1. A band or sheet of tough, fibrous tissue between parts or segments. 2. (BRYOZOA) Muscle fibers embedded in collagen with a tubular peritoneal ...
ligament fulcrum
see nympha.
ligament groove
(MOLLUSCA: Bivalvia) A narrow depression in the cardinal area for attachment of ligament fibers.
ligament pit
(MOLLUSCA: Bivalvia) A broad depression in the cardinal area for ligament attachment.
ligament sac
1. (ACANTHOCEPHALA) Encloses the genital apparatus of male and female; separates immature eggs from mature in females. 2. (MOLLUSCA) The sac housing the ligaments ...
ligament strand
(ACANTHOCEPHALA) The nucleated, syncytial band of tissue lying between the ligament sacs or along the ventral face of the single ligament sac.
ligament suture
Elongate space behind the umbones, apparent after the ligament is gone.
ligamental area
(MOLLUSCA: Bivalvia) An area between the umbo and ligament that shows the growth track of the ligament.
adj. [L. lignum, wood] Of or like wood; woody.
adj. [L. lignum, wood; cola, inhabitant] Living in wood.
adj. [L. lignum, wood; vorare, to devour] Eating wood or woody tissue.
n.; pl. -lae [L. ligula, little tongue] 1. (ANNELIDA: Polychaeta) Lobe of the parapodium. 2. (ARTHROPODA: Insecta) a. The terminal lobe or lobes of the labium; the ...
ligular lobe
see ligula.
adj. [L. ligula, little tongue] Strap shaped.
n. [L. ligula, little tongue] (ANNELIDA: Polychaeta) A parapodial lobe covering the anus dorsally.
n.; pl. -le [F., fr. L. limax, slug] (MOLLUSCA: Gastropoda) The concealed vestigial shell of slugs.
adj. [L. limax, slug; forma, shape] Shaped like a slug.
1. n. [A.S. lim, limb] The leg or wing of an animal. 2. n. [L. limbus, an edge] The border, rim or edge.
adj. [L. limbus, an edge] 1. Having a margin or limb of another color. 2. (ANNELIDA) Term used to describe seta with a flattened margin to the blade.
n. [L. limbus, an edge] 1. (ARTHROPODA: Chelicerata) In Acari, the border of an element of the exoskeleton, such as a tectum. 2. (BRACHIOPODA) The flattened inner margin ...
adj. [L. limus, mud; colus, dwelling in] Living in mud or shore dwelling.
adj. [L. limen, threshold] Pertaining to threshold; see subliminal.
limited chromosome
May be eliminated or diminished in cleavage, thus producing clones of differing functional karyotypes.
limiting factor
Essential factor in the environment that is in short supply; thus limiting growth, some life process or population size.
adj. [L. limus, mud; vorare, to devour] (ANNELIDA) Mud eating to obtain the organic matter.

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