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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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<strong>Online</strong> <strong>Dictionary</strong> <strong>of</strong> <strong>Invertebrate</strong> <strong>Zoology</strong> 83arachnidium n. [Gr. arachne, spider] (ARTHRO: Chelicerata)The spinning apparatus <strong>of</strong> spiders, consisting <strong>of</strong> the spinningglands and their ducts and the spinnerets. arachnidiala.arachnism n. [Gr. arachne, spider; ismos, denoting condition](ARTHRO: Chelicerata) Poisoning, or poisoned condition dueto envenomation by a spider. see arachnidism.arachnoid, arachnoideal a. [Gr. arachne, spider; eidos, form](ARTHRO: Chelicerata) 1. Resembling a member <strong>of</strong> theArachnida. 2. Resembling a spider's web, thin and fine,filmy.arachnologist n. [Gr. arachne, spider; logos, discourse] Onewho studies the arachnids.aragonite n. [fr. Aragon, in Spain] 1. A calcium carbonate, dimorphouswith calcite. 2. The innermost layer <strong>of</strong> a shell. 3.(CNID: Anthozoa) The skeleton <strong>of</strong> coral, produced by thecalicoblastic epithelium.arakoderan a. [Gr. arake, bowl; deros, skin] (NEMATA: Secernentea)Pertaining to a caudal ala that completely surroundsthe cloacal area. see leptoderan; peloderan.araneiform a. [L. aranea, spider; forma, form] Spiderlike inappearance.araneology n. [L. aranea, spider; Gr. logos, discourse] Thatbranch <strong>of</strong> zoology that treats only <strong>of</strong> spiders.arboreal a. [L. arbor, tree] Pertaining to or living in or amongtrees.arborescent a. [L. arbor, tree] Tree-like in character or appearance;branching like a tree, as some species <strong>of</strong> mollusksand corals.arborizations n.pl. [L. arbor, tree] A tree-like branching <strong>of</strong>terminal fibers <strong>of</strong> axons or collaterals.arbovirus n. Any <strong>of</strong> a group <strong>of</strong> (ar)thropod-(bo)rne (virus)es,including the causative agents <strong>of</strong> yellow fever, viral encephalitisand certain febrile infections, that are transmittedto man by various mosquitoes and ticks.arc n. [L. arcus, bow] Any object having a bowlike curvature.arcade n. [L. arcus, arch] (NEMATA: Secernentea) Lateral col-

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