entozoa n.pl., sing. entozoon [Gr. entos, within; zoon, animal] The internal parasites collectively. entozoal a., ento-zoan a. & n.
entozoic a. [Gr. entos, within; zoon, animal] Living within another animal; an internal parasite. see endozoic, epizoic.
enucleate v. [L. ex, out of; nucleus, kernel] 1. To remove an entire organ, etc. 2. To destroy or remove the nucleus of a cell.
envelope n. [OF. enveloper, wrap up] (ARTHRO: Insecta) A sheath surrounding the nest of a social wasp.
environment n. [F. environ, about] The totality of physical, chemical and biotic conditions surrounding an entire organism.
enzootic disease A disease which is constantly present in a population of lower animals, although usually at a low maintenance level.
enzyme n. [Gr. en, in; zyme, yeast] An organic catalyst produced by a living organism.
Eogaea n. [Gr. eos, dawn; gaia, earth] Seldom used zo-ogeographic term; including Africa, South America and Australia. see Caenogaea.
eoplasmatocyte n. [Gr. eos, dawn; plasma, formed or molded; kytos, container] (ARTHRO: Insecta) A form of plasmatocyte with conspicuous acidophilic nucleus and light basophilic cytoplasm.
eoplasmatocytoid a. [Gr. eos, dawn; plasma, formed or molded; kytos, container; eidos, like] (ARTHRO: Insecta) A form of plasmatocyte intermediate to the eoplasmatocyte and microplasmatocyte.
eosinophil a. [Gr. eos, dawn; philos, loving] A polymorphonuclear leukocyte or other granulocytes whose cytoplasm has an affinity for eosin dye.
eosinophilia n. [Gr. eos, dawn; philos, loving] With an elevated eosinophil count in the circulating blood, resulting from chronic parasite infection or other diseases.
epacme n. [Gr. epi, upon; akme, top] The evolutionary phy-logeny of a group of organisms before reaching its highest point.
epalpate a. [L. ex, out of; palpus, feeler] Lacking palpi; expal-pate.
epandrium, epiandrium n.; pl. -dria [Gr. epi, upon; aner, male] (ARTHRO: Insecta) In male Diptera, the tergite of the 9th segment, maybe reduced or enlarged, sometimes bearing surstyli.
epaulet, epaulett n.; pl. epaulets, epaulettes [F. dim. epaule, shoulder] 1. (ARTHRO: Insecta) a. In Diptera, sclerites at the base of the costa. b. In Hymenoptera, the tegula. c. In Lepidoptera, the sclerotized separation of the tympanum from the membranous dorsoposterior portion of the epimeron, variable in shape between species; the nodular sclerite. 2. (CNID: Scyphozoa) Branched or knobbed processes of the oral arms. 3. (ECHINOD: Echinoidea) Crescentic ridges of cilia of the sea urchin nymph. 4. (NEMATA) A specialized shield-shaped band of cephalic cuticle, not to be confused with cordons.
epedaphic a. [Gr. epi, upon; edaphos, soil] Pertaining to, or dependent upon climatic conditions.
epharmonic a. [Gr. epi, upon; harmonia, a fitting together] Pertaining to the adaptation of an organism or species to its environment. epharmony n.
epharmosis n. [Gr. epi, upon; harmonia, a fitting together] The method of adaptation of organisms to a new environment.
ephebic a. [Gr. epi, upon; hebe, puberty] 1. Mature. 2. (AR-THRO: Insecta) The adult; between the neanic and gerontic stage; the winged adult stage. 3. (bryo) Zooids laid down during the phase of astogenic repetition.
ephemeral n. [Gr. ephemeros, living only a day] A short-lived animal species, especially insects.
ephippium n.; pl. ephippia [L. ephippium, saddle] (ARTHRO: Crustacea) Exuvia of some female cladocerans with one to several eggs enclosed, capable of withstanding dessication; a vehicle of dispersal. ephippial a.
ephyra n.; pl. ephyre, ephyrae, ephyrula [Gr. Ephyra, name of a sea nymph] (CNID: Scyphozoa) A small free-swimming medusa arising by asexual division (transverse fission) of a strobila; a monodisk.
epiandrous glands (ARTHRO: Chelicerata) A group of glands found in most male spiders that add to the sperm web a small white mat on which the drop of sperm is deposited.
epibenthos n. [Gr. epi, upon; benthos, depth of the sea] The fauna of the sea bottom between low tide line and 100 fathoms.
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