Слова на букву spir-terg (732) Dictionary of invertebrate zoology
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Слова на букву spir-terg (732)

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spiral amphid
(NEMATODA: Adenophorea) A coiled amphid tube beneath the cuticle that appears as a spiral.
spiral cleavage
A type of early embryonic cleavage in which, after the first few divisions, the cells of the upper quartet in the eight-celled stage lie above and between the cells of the ...
spiral conic
(MOLLUSCA: Gastropoda) In Trochidae, an advancing spiral, winding around an axis and forming a cone shape.
spiral filament
see taenidium.
spiral thread
См. spiral filament.
spiralia
n. pl.; sing. spiralium [L. spira, coil] (BRACHIOPODA) Two spirally coiled supports of the secondary shell for the plectolophe or spirolophe.
spiramen
n. [L. spiramen, vent] (BRYOZOA) A median pore, not connected to the ascus, in the frontal wall on the proximal side of the orifice.
spirasters
n. pl. [L. spira, coil; aster, a star] (PORIFERA) Spirally twisted streptasters.
spire
n. [L. spira, coil] (MOLLUSCA: Gastropoda) The complete series of whorls of a spiral shell except the last.
spire angle
(MOLLUSCA: Gastropoda) In plane through entire shell axis, angle between two straight lines that touch all the whorls on opposite sides; these lines can only be drawn if the ...
spirignath
См. spiritrompe.
spiritrompe
see galea.
spirocyst
n. [L. spira, coil; Gr. kystis, bladder] (CNIDARIA: Anthozoa) In Zoantharia, a type of nematocyst with a thin, single- wall capsule that is acidophilic and contains a ...
spirogyrate
adj. [L. spira, coil; gyratus, circular] (MOLLUSCA: Bivalvia) 1. Umbones coiled outward from the saggital plane. 2. In oysters, having the beak in a distinct spiral.
spiroid
adj. [L. spira, coil] Spiral-shaped.
spirolophe
n. [L. spira, coil; Gr. lophos, crest] (BRACHIOPODA) A lophopore with brachia spirally coiled and bearing single rows of paired filamentary appendages.
splanchnic
adj. [Gr. splanchnon, entrail] Of or pertaining to the viscera.
splanchnic layer
(ARTHROPODA: Insecta) The inner layer of the mesoderm applied to the wall of the alimentary canal; splanchnopleure.
splanchnic nerves
(ARTHROPODA: Insecta) Nerves originating from the last abdominal ganglion and continuing to the hind intestine and the reproductive system.
splanchnopleure
see splanchnic layer.
splendent
adj. [L. splendens, shining] Shining; glossy; reflecting light intensely.
splicing
adj. [D. splissen, to split] Methods of attaching one piece of DNA to another; gene splicing.
split sense organs
(ARTHROPODA: Chelicerata) In Arachnida, cuticular sense organs of spiders responding to cuticular stress and vibrations.
splitter
n. [MD. splitten, to split] In taxonomy, an individual who divides taxa expressing minute shades of difference and relationship, through the formal recognition of separate ...
spoil
См. spoile.
spoile
see exuvia.
spondylium
n. [Gr. spondylos, vertebra, joint] (BRACHIOPODA) A Ushaped ridge formed by the fusion of the distal ends of the dental plates that accommodate the ventral muscles.
sponge
n. [L. spongia, sponge). 1. The common name for the Porifera. 2. (ARTHROPODA: Crustacea) In Malacostraca, the usually orange egg mass brooded by female crayfish.
spongicolous
adj. [L. spongia, sponge; colere, to inhabit] Living in sponges.
spongiform
adj. [L. spongia, sponge; forma, form] Sponge-like; soft and porous.
spongin
n. [L. spongia, sponge] (PORIFERA) Collagenous material of the skeleton formed of homogeneous fibers or plaques.
spongioblasts
see spongocyte.
spongiocoel
see spongocoel.
spongioplasm
n. [L. spongia, sponge; Gr. plasma, formed or molded] The a, H, and I bands of fibrillar bundles of muscles.
spongiose
adj. [L. spongia, sponge] Sponge-like.
spongocoel
(s) n. [L. spongia, sponge; Gr. koilos, hollow] (PORIFERA) A canal(s) or cavity(ies) that conveys water from the flagellated chambers.
spongocyte
n. [L. spongia, sponge; Gr. kytos, container] (PORIFERA) A cell that secretes spongin.
spoon
see bouton, flabellum.
sporadic
adj. [Gr. sporas, scattered] Occasional occurrence.
sporoblast
n. [Gr. spora, seed; blastos, bud] A cell mass that will develop into a sporocyst within an oocyst.
sporocyst
n. [Gr. spora, seed; kystis, bladder] 1. A stage of sporozoan development, usually within a protective envelope; the oocyst. 2. (PLATYHELMINTHES: Trematoda) An asexual ...
sporogony
n. [Gr. spora, seed; gonos, offspring] The multiple fission of a zygote; a sporont.
sporont
n. [Gr. spora, seed; on, a being] An undifferentiated cell mass within an oocyst.
sporosac
n. [Gr. spora, seed; sakkos, bag] (CNIDARIA: Hydrozoa) In Siphonophora, gonophores held in place and not released into the water during larval development.
sporozoite
n. [Gr. spora, seed; zoon, animal] The stage of development of a sporoblast which has divided and exited the oocyst into the hemocoel and migration begins; the malarial ...
spout
n. [ME. spouten, to vomit] (MOLLUSCA: Gastropoda) A rudimentary siphonal canal.
spraing
n. [Scot. of Scand. origin, sprang, stripe] A bright streak or stripe.
spring tide
A series of tides with a relatively large tidal range, occurring at or soon after the new or the full moon; see neap.
spur
n. [A.S. spora, spur] 1. A movable spine-like process. 2. (ARTHROPODA: Crustacea) a. In Cirripedia, a pendent-like projection from the basal margin of the tergum. b. In ...
spur fasciole
(ARTHROPODA: Crustacea) In Cirripedia, a slight depression on the outer surface of the tergum to the apex in line with the spur.
spur furrow
(ARTHROPODA: Crustacea) In Cirripedia, a groove on the outer surface of the tergum to the apex in line with the spur.
spurious
adj. [L. spurius, false] Morphologically untrue; false.
spurious claw
(ARTHROPODA) A false claw; a claw-like stout bristle.
spurious legs
see prolegs.
spurious vein
(ARTHROPODA: Insecta) A fold or thickening of the wing membrane between two true veins.
squama
n.; pl. -mae [L. squama, scale] 1. Any decumbent scale. 2. (ARTHROPODA: Crustacea) A scale-like exopod of the antenna; see scaphocerite. 3. (ARTHROPODA: Insecta) a. In ...
squamate
См. squamiform.
squamiform
adj. [L. squama, scale] Scale-like; squamoid.
squamose
adj. [L. squama, scale] Covered with scales.
squamous
См. squamose.
squamul alaris
see alar squama.
squamulate
См. squamulose.
squamulose
adj. [L. dim. squama, scale] Having small scales.
squarrose
adj. [L. squarrosus, rough] Rough with projecting scale-like processes, divided into upright and nonparallel with the plane.
squat
adj. [OF. esquatir, to press down] More broad in proportion than to height.
stabilamentum
См. stabilimentum.
stabilimentum
n. [L. stabilis, firm; amentum, strap] (ARTHROPODA: Chelicerata) In Arachnida, one of a series of obvious zigzag lines at the hub of certain orb spider webs that warn birds ...
stadium
n.; pl. stadia [L. stare, to stand] 1. The stage or period in an animals life. 2. The interval between molts of a larva; stade; see instar.
stage
see stadium.
stalk
n. [A.S. stel, stalk] A supporting structure, such as a pedicel.
staphyla
n.; pl. staphylae [Gr. staphyle, bunch of grapes] A group of gongylidia used as food by Attine ants that grow the fungus.
stase
n. [Gr. stasis, standing] (ARTHROPODA: Chelicerata) 1. One of the successive instars of the postembryonic development of a specific species. 2. In Acari, an instar ...
stasis
n. [Gr. stasis, standing] The stopping of normal processes, i.e., growth, fluid movement, etc.
stasoid
adj. [Gr. stasis, standing; eidos, like] (ARTHROPODA: Chelicerata) The life cycles of some instars that cannot be homologized with corresponding instars of other species of ...
statary phase
(ARTHROPODA: Insecta) In Hymenoptera, a period in the army ant cycle in which the colony does not move from site to site; the queen lays eggs, and the brood is mostly eggs ...
static
adj. [Gr. statikos, to cause to stand] Pertaining to rest or equilibrium; see dynamic.
statis organ
see statocyst.
statis sense
The sense of balance or maintenance in the air or water.
statistical method
Special mathematical methods for the elucidation of quantitative variations affected by a multiplicity of factors.
statoblast
n. [Gr. statos, fixed; blastos, bud] (BRYOZOA: Phylactolaemata) A sessile or free, ovoid or discoid chitinized bud, with large yolky cells and organized germinal ...
statocone
n.; pl. -ia [Gr. statos, fixed; koni, dust] A minute calcareous granule in a statocyst.
statocyst
n. [Gr. statos, fixed; kystis, bladder] An organ of balance found in many invertebrates, variable in structure from an open canal, vesicle, or closed chambers composed of ...
statocyte
see lithocyte.
statolith
n. [Gr. statos, fixed; lithos, stone] A movable concretion of granules of sand, lime, diatom shells, or quartz grains contained in a statocyst, that functions in equilibrium; ...
statorhabd
see rhopalium.
stauractine
adj. [Gr. stauros, cross; aktis, ray] (PORIFERA) A tetractinal spicule with all four rays in a single plane.
stegasimous
adj. [Gr. stege, roof] (ARTHROPODA: Chelicerata) In Acari, having the prodorsal sclerite project over the chelicerae; see astegasimous.
stellate
adj. [L. stella, a star] Star-shaped; resembling the rays of a star.
stellate cells
Stelliform plasmatocyte-like cells often adhering to internal tissues; see plasmatocyte.
stelliform
adj. [L. stella, a star; forma, form] Star-shaped.
stelocyttarous
adj. [Gr. stele, pillar; kyttaros, partition] (ARTHROPODA: Insecta) Pertaining to nests, especially of social wasps, in which the brood combs are attached to the support by ...
stem
see hydrocaulus.
stem cell
see prohemocyte.
stem nematogen
(MESOZOA: Rhombozoa) A young nematogen with the same number and arrangement of cells as the larva, but with many agamete cells that give rise to ordinary nematogens.
stemapod
n. [Gr. stema, penis; pous, foot] (ARTHROPODA: Insecta) In larval Noctuoidea, elongated anal prolegs.
stemapoda
См. stemapod.
stemma
n.; pl. stemmata, stemmatas [Gr. stemma, garland] (ARTHROPODA: Insecta) The lateral ocelli of larval holometabolous insects that vary in number from one on each side in ...
stenobathic
adj. [Gr. stenos, narrow; bathys, depth] An organism restricted to a narrow vertical range of movement; see eurybathic.
stenobenthic
adj. [Gr. stenos, narrow; benthos, depth of the sea] An organism living within a narrow range of depth of the sea bottom; see eurybenthic.
stenocephalous
adj. [Gr. stenos, narrow; kephalon, head] Having a narrow, elongated head.
stenogamous
adj. [Gr. stenos, narrow; gamos, union] (ARTHROPODA: Insecta) Pertaining to Culicidae that require only a small enclosure when mating in captivity; see eurygamous.
stenogastric
adj. [Gr. stenos, narrow; gaster, stomach] With a shortened abdomen or gaster.
stenoglossate
adj. [Gr. stenos, narrow; glossa, tongue] (MOLLUSCA: Gastropoda) Pertaining to the radula consisting of 1-1-1 or 0-1-0 rows of teeth.
stenohaline
adj. [Gr. stenos, narrow; halinos, saline] Any organism capable of withstanding only slight variations of salinity in its environment; stenosalinity; see euryhaline.
stenohygric
adj. [Gr. stenos, narrow; hygros, moist] Pertaining to an organism tolerating only a narrow atmospheric humidity range.
Stenolaemata
См. stenolaemates.
stenolaemates
n.; n. pl. [Gr. stenos, narrow; laimos, throat] A class of "tubular bryozoans", exclusively marine, with circular lophophores lacking an epistome.
stenomorphic
adj. [Gr. stenos, narrow; morphe, shape] 1. Genera with limited morphological characters. 2. Dwarfed.
stenonoty
n. [Gr. stenos, narrow; notos, back] A small thorax.
stenophagous
adj. [Gr. stenos, narrow; phagein, to eat] Existing on only a limited variety of foods; see euryphagous, omnivorous.
stenopodium
n. [Gr. stenos, narrow; pous, foot] (ARTHROPODA: Crustacea) Slender, sometimes setose, elongate appendage, composed of rod-like segments.
stenopterous
adj. [Gr. stenos, narrow; pteron, wing] Having a narrow, complete wing.
stenosaline
see stenohaline.
stenosis
adj. [Gr. stenos, narrow] Constriction of vessels, ducts, etc.
stenotele
n. [Gr. stenos, narrow; telos, the end] (CNIDARIA) A stinging nematocyst; a sprially coiled thread armed with spiral rows of projections that is provided at its distal end ...
stenothermal
adj. [Gr. stenos, narrow; therme, heat] Confined to living within a narrow range of temperatures; see eurythermal.
stenotopic
adj. [Gr. stenos, narrow; topos, place] Organisms having a limited geographical distribution or occurring in restricted habitats; see eurytopic.
stenovalent
adj. [Gr. stenos, narrow; L. valens, strong] An organism restricted to few types of environmental conditions; see euryvalent.
stenoxenous
adj. [Gr. stenos, narrow; xenos, host] Having a narrow host range.
steppe
n. [Russ. step\', lowland] Short grass plains, generally treeless.
stercoral
adj. [L. stercus, dung] 1. Pertaining to excrement. 2. Living in or feeding on dung.
stercoral pocket
(ARTHROPODA: Chelicerata) A dilated portion of the proctodeum of certain spiders in which fecal matter and excreta temporarily accumulate.
stereoblastula
n. [Gr. stereos, solid; blastos, bud] An early, solid blastula larva, all of whose cells reach the external surface.
stereogastrula
n. [Gr. stereos, solid; gaster, stomach] A general term for solid metazoan larvae.
stereoisomer
n. [Gr. stereos, solid; isos, equal; meros, part] Different three-dimensional configurations of organic molecules that have different light rotational properties.
stereokinesis
n. [Gr. stereos, solid; kinesis, movement] A reflex sensitivity inhibition due to passive contact stimuli; thigmotaxis.
stereom(e)
n. [Gr. stereos, solid] 1. The rigid material of the invertebrate skeleton. 2. (BRYOZOA: Stenolaemata) The extrazooidal skeletal deposits, additions to structural ...
stereotaxis
n.; pl. -taxes [Gr. stereos, solid; taxis, arrangement] The directive response of an organism to contact with solids; thigmotaxis. a. Positive stereotaxis: toward the ...
stereotropism
n. [Gr. stereos, solid; tropos, turn] A movement in direction determined by contact with a solid body. a. Positive stereotropism: toward contact. b. Negative stereotropism: ...
sterile
adj. [L. sterilis, unfruitful] Incapable of producing viable gametes.
sterilization
n. [L. sterilis, unfruitful] 1. Rendering an animal incapable of reproduction. 2. Rendering a substrate free of organisms.
sterinx
n. [Gr. sterinx, support] (ARTHROPODA: Crustacea) In Ostracoda, one of a pair of connecting pieces lateral to the tropis in the male copulatory apparatus.
sterna
pl. of sternum.
sternacosta
n. [Gr. sternon, chest; L. costa, rib] (ARTHROPODA: Insecta) An internal transverse ridge connecting the bases of the sternal apophyses.
sternacostal
suture (ARTHROPODA: Insecta) The external suture of the thoracic sternum through the apophyseal pits separating the basisternum from the sternellum.
sternal
adj. [Gr. sternon, chest] (ARTHROPODA: Insecta) Pertaining to the sternum.
sternal apophyseal pits
(ARTHROPODA: Insecta) In higher insects, an external indentation marking the point of origin of the sternal apophysis.
sternal apophysis
(ARTHROPODA: Insecta) One of a pair of lateral apodemal arms of the eusternum marked by pits joined by a sulcus, thus dividing the eusternum into a basisternum and a ...
sternal canal
(ARTHROPODA: Crustacea) In Decapoda, an internal skeletal structure of some crabs formed by the meeting of the sternal apodemes from opposite sides of the body above the ...
sternal coxal process
(ARTHROPODA: Insecta) 1. A projection of the sternum serving for the ventral point of articulation with the coxa. 2. In Culicidae, a winglike expansion of the meso- and ...
sternal laterale
(ARTHROPODA: Insecta) A plate on each side of the sternum or presternum in some lower insects.
sternal plastron
see sternum.
sternal process
(ARTHROPODA: Crustacea) In Mysidacea, a projection arising from the midsection of the sternite.
sternal spatula
see breastbone.
sternal taenidium
(ARTHROPODA: Chelicerata) In Opilioacariformes, a surface canal in the sternal region of the podosoma extending from the coxal gland orifice, between coxae I and II, to the ...
sternal verrucae
(ARTHROPODA: Chelicerata) In Opilioacariformes, paired wart-like structures in the sternal region.
sternannum
see basisternum.
sternapophysis
n. [Gr. sternon, chest; apo-, separate; physein, to grow] (ARTHROPODA: Chelicerata) In Acari, protuberance (single, paired or three) in the sternal region of leg I.
sternaulus
n.; pl. -li, -lices [Gr. sternon, chest; aulos, tube] (ARTHROPODA: Insecta) In ichneumonid Hymenoptera, a horizontal groove on the lower edge of the mesopleurum from the ...
sternellum
n. [Gr. dim. sternon, chest] (ARTHROPODA: Insecta) A part of the eusternum posterior to the sternacostal suture.
sternite
n. [Gr. sternon, chest] (ARTHROPODA) The main ventral sclerite of a somite.
sternopleural bristles
(ARTHROPODA: Insecta) In Diptera, bristles on the sternopleuron.
sternopleurite
n. [Gr. sternon, chest; pleuron, side] (ARTHROPODA: Insecta) The ventral sclerite of the thoracic pleuron that articulates with the coxa and becomes fused with the ...
sternopleuron
see sternopleurite.
sternum
n.; pl. sterna [Gr. sternon, chest] 1. (ARTHROPODA) The primary ventral portions of the somites, or the composite ventral sclerite of a segment. 2. (ARTHROPODA: ...
sternum canal
see sternal canal.
sterols
n. pl. [Gr. stereos, solid] Alcohols of high molecular weight containing benzene-rings found in plants and animals.
sterrasters
n. [Gr. sterrhos, solid; aster, star] (PORIFERA: Desmospongiae) Large centered, globular spicules with rays reduced to small projections from the spherical surface.
sterrula
n. [Gr. sterrhos, solid] (CNIDARIA: Anthozoa) A solid freeswimming larva of Alcyonaria; stereoblastula.
stethidium
n. [Gr. stethos, breast] 1. (ARTHROPODA: Chelicerata) In Acari, the nonsclerotized prodorsum. 2. (ARTHROPODA: Insecta) The thorax and its appendages.
stethosoma
n. [Gr. stethos, breast; soma, body] (ARTHROPODA: Chelicerata) In Acari, that part of the body from the circumcapitular furrow to the disjugal furrow; prosoma without the ...
Stewart's organs
(ECHINODERMATA: Echinoidea) In cidaroids, coelomic pouches associated with Aristotle\'s lantern, functioning for interchange of gases.
stichic
adj. [Gr. stichos, row] Pertaining to a row parallel to the longitudinal axis.
stichocyte
n. [Gr. stichos, row; kytos, container] (NEMATODA: Adenophorea) An individual cell of a stichosome.
stichosome
n. [Gr. stichos, row; soma, body] (NEMATODA: Adenophorea) A longitudinal series of cells (stichocytes) that form the posterior esophageal glands.
sticklac
n. [A.S. sticca, stick; Skr. laksa, lac] (ARTHROPODA: Insecta) Branches or twigs covered with the dried lac of scale insects; see lac.
stigma
n.; pl. stigmata [Gr. stigma, mark] 1. A spiracle or breathing pore. 2. (ARTHROPODA: Chelicerata) In Acari, a sclerite surrounding a spiracle. 3. (ARTHROPODA: Insecta) ...
stigmal vein
(ARTHROPODA: Insecta) A short vein extending posteriorly from the costal margin of the wing; stigma.
stigmatal field
(ARTHROPODA: Insecta) An area around the spiracles of larvae; spiracular disk; respiratory disk; see spiracular line.
stigmatal line
see spiracular line.
stigmatal spine
(ARTHROPODA: Insecta) In larval Diptera, the extrusible structure (modified terminal spiracles) in the anal siphon.
stigmatic cord
(ARTHROPODA: Insecta) In some larvae, a delicate cord running from the scar of a nonfunctional spiracle to an adjacent part of the tracheal system.
stigmatic scar
(ARTHROPODA: Insecta) The mark on the surface made by the ecdysial tube after molting.
stigmatiferous
adj. [Gr. stigma, mark; L. ferre, to bear] (ARTHROPODA: Insecta) Bearing spiracles or stigmata.
stigmergy
n. [Gr. stigma, mark; mergere, to dive] (ARTHROPODA: Insecta) In social insects, the directing of work by individual colony members based on work previously accomplished as ...
stimulus
n.; pl. stimuli [L. stimulus, a goad] Any change of external or internal conditions resulting in a change in the activities of an organism.
sting apparatus
(ARTHROPODA: Insecta) In female Hymenoptera, the modified ovipositor of aculeates and many terebrantes, usually containing the venom gland and one accessory gland, the ...
sting autotomy
(ARTHROPODA: Insecta) In Hymenoptera, enlarged barbs on the sting apparatus that remain at the sting site; autothysis.
sting sheath
(ARTHROPODA: Insecta) In Hymenoptera, the cover of the sting formed by the lateral halves of the third valvulae.
sting sheath gland
См. sheath gland.
stinging button
(CNIDARIA) A group of nematocysts on a jellyfish tentacle, especially the Portuguese man-of-war.
stipe
n. [L. stipes, a stem] 1. A stem or stalk-like appendage. 2. (ARTHROPODA: Crustacea) In Eucarida, a stemlike basal part of an appendage with sometimes squamate or ...
stipes
n.; pl. stipites [L. stipes, a stem] 1. (ARTHROPODA: Chelicerata) The distal end of the embolus (copulatory organ) of spiders. 2. (ARTHROPODA: Diplopoda) The lateral ...
stipiform
adj. [L. stipes, a stem; forma, shape] Resembling a stalk.
stipital
adj. [L. stipes, a stem] Pertaining to the stipe(s).
stipple
n. [D. stippelen, to spot] Numerous circles or dots; shading effects produced by dots, circles or small marks.
Stobbe's gland
(ARTHROPODA: Insecta) In Lepidoptera, paired multicellular aphrodisiac pheromone producing glands in the second abdominal segment of male noctuids.
stock
n. [A.S. stocc, stem, race] (ANNELIDA: Polychaeta) The sexual individuals from which other individuals arise asexually.
stolon
n. [L. stolo, a branch] 1. (ANNELIDA) Individuals that are budded or fragmented asexually off of other individuals. 2. (BRYOZOA: Stenolaemata) In Stolonifera, a tubular ...
stolonate
adj. [L. stolo, a branch] Having stolons; stoloniferous.
stoloniferan
n. [L. stolo, a branch; ferre, to bear] (BRYOZOA: Stenolaemata) An autozooid budded from a single kenozooid.
stoma
n.; pl. stomata [Gr. stoma, mouth] 1. Any of various small, simple mouth openings of invertebrates. 2. (NEMATA) The mouth or buccal cavity, from the oral opening and ...
stomach
n. [Gr. stoma, mouth] The digestive cavity of invertebrates.
stomata
pl. of stoma.
stomatal
adj. [Gr. stoma, mouth] Pertaining to the stoma.
stomate
adj. [Gr. stoma, mouth] 1. Bearing a mouth. 2. (ANNELIDA) A nephridium with a funnel; an open nephridium.
stomatodaeum
see stomodeum.
stomatogastric
see recurrent nerve, stomogastric nervous system.
stomatostylet
n. [Gr. stoma, mouth; stylos, pillar] (NEMATODA: Secernentea) A stylet or protrusible hollow spear found in fungus feeding plant parasitic and insect parasitic nematodes ...
stomatotheca
n. [Gr. stoma, mouth; theke, case] (ARTHROPODA: Insecta) That part of the pupal covering over the mouth structures.
stomoblastula
n. [Gr. stoma, mouth; blastos, bud] (PORIFERA: Calcarea) A developmental period of the amphiblastula, when the blastula opens and ingests adjacent choanocytes.
stomocnide
see injector.
stomodaeum
n. [Gr. stoma, mouth; hodos, way, road] The anterior ectodermal portion of the alimentary canal; the fore-intestine or foregut.
stomodeal bridge
(ARTHROPODA: Chilopoda) A commissure that anteriorly connects the tritocerebral glanglia.
stomodeal canal
(CTENOPHORA) Paired canals lying parallel to the stomodeum or pharynx; the pharyngeal canal.
stomodeal feeding
(ARTHROPODA: Insecta) A mixture of salivary secretions and regurgitated intestinal contents received from another insect; see proctodeal feeding.
stomodeal nervous system
see stomatogastric sympathetic nervous system.
stomodeal valve
see cardiac valve.
stomodeum
См. stomodaeum.
stomogastric nerve
see recurrent nerve.
stomogastric nervous system
(ARTHROPODA: Insecta) The nervous system directly connected to the brain, innervating the fore and middle intestine, heart and certain other parts; the esophageal nervous ...
stone canal
(ECHINODERMATA: Asteroidea) A vertical canal containing calcareous deposits in its wall, that descends to the oral side of the disc, joining a circular canal (the water ...
storage pots
(ARTHROPODA: Insecta) In Hymenoptera, containers constructed of cerumen for food storage by social bees; a honey pot.
strahl
n.; pl. strahlen [Ger. strahl, ray] A ciliary process, ray or barbule.
straight-hinge veliger
see protostracum.
strangulated
adj. [L. strangulare, to strangle] Constricted; contracted; held in.
strata
pl. of stratum.
stratification
n. [L. stratum, a cover; ficare, to make] Act or process of being made up of layers.
stratum
n.; pl. -ta [L. stratum, a cover] 1. A layer of tissue or cells that compose an organ. 2. A group of organisms inhabiting a particular geographical area. 3. A layer of ...
strepsilaematous
adj. [Gr. strepsis, twisting; laimos, throat] Having a pharynx rotated along its length; see euthylaematous.
streptasters
n. pl. [Gr. strepsis, twisting; aster, star] (PORIFERA) Short, spiny, microscleric monaxon spicules.
streptoneury
n. [Gr. strepsis, twisting; neuron, nerve] (MOLLUSCA: Gastropoda) Equivalent to chiastoneury.
stria
n.; pl. striae [L. stria, furrow] A groove or depressed line. striate adj..
striation
n. [L. stria, furrow] A longitudinal ridge or furrow.
stricture
n. [L. stringere, to bind tight] A binding or contraction, as of a passage in a body.
stridulating organs
The impact of some part of the body against the substratum; friction method, rubbing two parts of the body together; vibrating membrane; sound produced by a pulsed air ...
stridulation
n. [L. stridere, to make a creaking or grating noise] Any sound produced by a lower animal.
stridulatory
adj. [L. stridere, to make a creaking or grating noise] Pertaining to or the nature of stridulation.
striga
n.; pl. strigae [L. striga, furrow] A narrow, transverse line or streak.
strigate
adj. [L. striga, furrow] Marked with fine, closely set grooves.
strigil
n. [L. strigilis, scraper] (ARTHROPODA: Insecta) 1. A curved structure at the apex of the fore tibia of many insects that functions as a scraper, a tibial comb or ...
strigilation
n. [L. strigilis, scraper] (ARTHROPODA: Insecta) In Hymenoptera, licking secretions from the body of another animal.
strigilator
n. [L. strigilis, scraper] One who licks the surface of another to collect secretions from the body.
strigose
adj. [L. striga, furrow] Covered with strigae; marked with fine, closely set grooves.
strigose ventral areas
(ARTHROPODA: Insecta) In Hemiptera, the inner side of the hind tibiae containing wart-like tubercles, each bearing a subapical tooth; rubbing against the femur produces an ...
strigula
n.; pl. -ulae [L. striga, furrow] A fine, short transverse mark or line.
strike
n. [OE. strican, to stroke, level out] (ARTHROPODA: Insecta) The deposition of Diptera eggs or larvae on a living host.
string reef
(MOLLUSCA: Bivalvia) Oysters crowded into a long, narrow accumulation.
striola
adj. [L. dim. stria, furrow] Finely impressed parallel lines.
stripe
n. [MD. strijp, stripe] A longitudinal color marking.
strobila
n.; pl. -lae [Gr. strobilos, anything twisted, pine cone] 1. An organism, or stage of an organism, from which successive annular disc embryos bud off. 2. (CNIDARIA: ...
strobilation
См. strobilization.
strobilization
n. [Gr. strobilos, anything twisted, pine cone] 1. The formation of a chain of body segmentation into zooids. 2. (CNIDARIA: Scyphozoa) The ephyrae of jellyfish; see ...
strobilocercoid
n. [Gr. strobilos, anything twisted, pine cone; kerkos, tail; eidos, like] (PLATYHELMINTHES: Cestoda) In Schistotaenia , a cysticercoid that undergoes some strobilation. ...
strobilocercus
n. [Gr. strobilos, anything twisted, pine cone; kerkos, tail] (PLATYHELMINTHES: Cestoda) A simple cysticercus with evidence of strobilation.
stroma
n.; pl. stromata [Gr. stroma, bed] Connective tissue framework of an organ.
strombiform
adj. [Gr. strombos, a top, a spiral shell; L. forma, shape] (MOLLUSCA: Gastropoda) Roughly biconical, with expanded outer lip; said of the shell of Strombus .
stromboid notch
(MOLLUSCA: Gastropoda) In Strombus , a curve or notch in the outer lip, above the anterior notch.
strongylaster
n. [Gr. strongylos, rounded; aster, star] (PORIFERA) A star-shaped spicule with small center and rays with rounded edges.
strongyle
n. [Gr. strongylos, rounded] 1. (NEMATODA: Secernentea) A common name for the order Strongylida. 2. (PORIFERA) A diactinal monaxon (spicule) rounded at both ends.
strongyloxea
n. [Gr. strongylos, rounded; oxys, sharp] (PORIFERA) A monactinal megasclere with one end rounded and the other pointed.
strophe
n. [Gr. strophos, twisted] (ARTHROPODA: Insecta) In males of higher Diptera, spiral curling of parts of the postabdomen into a protected position at rest.
structural colors
Colors resulting from structure rather than pigment.
structural gene
Any gene that determines the structure of a polypeptide through the production of messenger RNA.
structure
n. [L. structus, build] Any organ, appendage or part of an organism.
struma
n.; pl. -ae [L. struma, scrofulous tumor] (ARTHROPODA: Insecta) In most Coccinellidae larvae, distinct tubercles of the body wall bearing spines; strumose adj..
stupeous
adj. [L. stupa, coarse fiber of flax or hemp, tow] Covered with fiber-like filaments.
stupulose
adj. [L. stupa, coarse fiber of flax or hemp, tow] Covered with coarse decumbent hairs.
stylamblys
see appendix interna.
stylate
adj. [Gr. stylos, pillar] With a style; stylelike.
style
n.; pl. styli [Gr. stylos, pillar] 1. (ARTHROPODA: Chelicerata) The embolus of spiders. 2. (ARTHROPODA: Crustacea) see telson. 3. (ARTHROPODA: Insecta) a. Any slender, ...

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