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Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

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336Maggenti and Gardner(ARTHRO: Crustacea) The first larval stage <strong>of</strong> a parasiticepicaridean; a microniscus.epicnemis n. [Gr. epi, upon; kneme, leg] (ARTHRO: Chelicerata)A tibial accessory joint <strong>of</strong> arachnids.epicnemium see prepectusepicole n. [Gr. epi, upon; L. colere, to inhabit] An animal thatlives on the surface <strong>of</strong> another animal and neither harmsnor helps that animal.epicondyle n. [Gr. epi, upon; kondylos, knuckle] (ARTHRO: Insecta)The cephalic or dorsal swelling <strong>of</strong> the proximal end<strong>of</strong> the mandible, articulating with a socket in the gena orpostgena.epicranial plate (ARTHRO: Insecta) In larval forms, a plate-likestructure forming the epicraniumepicranial stem (ARTHRO: Insecta) The coronal suture.epicranial suture (ARTHRO: Insecta) In larval forms, the dorsalY-shaped line <strong>of</strong> the cranium normally associated withmolts, but may persist in adults and form a true sulcus;ecdysial cleavage line.epicranium n. [Gr. epi, upon; kranion, skull] (ARTHRO: Insecta)The upper part <strong>of</strong> <strong>of</strong> the head, from the face to theneck; the calva. epicranial a.epicuticle, epicuticula n. [Gr. epi, upon; L. dim. cutis, skin]1. (ACANTHO) See glycocalyx. 2. (ARTHRO) The thin, outermostnonchitinous exterior layer <strong>of</strong> arthropod cuticle. 3.(ARTHRO: Chelicerata) For mites see epiostracum.epidemic n. [Gr. epi, upon; demos, the people] 1. A rapidlyspreading attack <strong>of</strong> disease in a population. 2. A diseaselevel higher than expected for a designated area. see endemic.epidemiology n. [Gr. epi, upon; demos, the people; logos,discourse] A science that deals with all ecological aspects <strong>of</strong>disease including transmission, distribution, prevalence,and incidence.epiderma n [Gr. epi, upon; derma, skin] An abnormal outgrowth<strong>of</strong> the skin.epidermis n. [Gr. epi, upon; derma, skin] 1. The cellular layer

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