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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> 213some classifications considered a subphylum <strong>of</strong> Coelenterata.3. Sometimes considered synonymous with Coelenterata.cnidoblast, nematoblast, nematocyte n. [Gr. knide, nettle;blastos, bud] (CNID) A round or ovoid interstitial cell thatforms a nematocyst.cnidocil n. [Gr. knide, nettle; L. cilium, eyelid] (CNID) A smallpointed projection on a nematocyst that acts as a triggerduring discharge.cnidocyst n. [Gr. knide, nettle; kystis, bladder] (CNID) A rigidoval capsule containing the eversible thread in the cnidoblast.cnidophore n. [Gr. knide, nettle; phorein, to bear] (CNID) Acontractile stalk with an enlarged hollow tip bearingnematocysts; present on the tentacles <strong>of</strong> some medusae.cnidopod n. [Gr. knide, nettle; pous, foot] (CNID) The basalportion <strong>of</strong> a nematocyst.cnidorhagi n. [Gr. knide, nettle; rhax, grape] (CNID) Clusters<strong>of</strong> rounded projections <strong>of</strong> tube anemones that are filledwith nematocysts.cnidosac, cnidus sac n. [Gr. knide, nettle; sakkos, bag](MOLL: Gastropoda) Cells in the distal tip <strong>of</strong> the cerata inwhich undischarged nematocysts ingested from cnidariansare stored and later used for defense.coacervate a. [L. coacervare, to heap up] Piled up; collectedinto a crowd; densely clustered.coactus a. [L. coactus, compress] Pertaining to a short stoutform; condensed.coadaptation n. [L. cum, with; ad, to; aptus, to fit] The selectionprocess that tends to accumulate harmonious interactions<strong>of</strong> genes brought together by natural selection.coadunate a. [L. coadunare, to unite with] 1. Combined orjoined together. 2. (ARTHRO: Insecta) Elytra when permanentlyunited at the suture.coagulation n. [L. coagulare, to curdle] The formation <strong>of</strong> aclot; to change from a liquid to a viscous or solid state.coagulin n. [L. coagulare, to curdle] A constituent <strong>of</strong> blood

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