Zooid

Zooid

Als Zooide werden Einzeltiere kolonial lebender Tiere bezeichnet. Die einzelnen Zooide sind dabei entweder miteinander verwachsen wie bei verschiedenen Nesseltieren (Cnidaria), den Catenuliden Plattwürmern oder den Kelchwürmern (Ectroprocta) oder sie befinden sich innerhalb einer Wohnröhre (extrazooidales Skelett, Zooecium), die die verbindende Struktur der Kolonie darstellt. Letzteres findet sich beispielsweise bei den Moostierchen (Bryozoa) oder den Flügelkiemern (Pterobranchia).


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  • Zooid — o oid, a. [Zo[ o] + oid.] (Biol.) Pertaining to, or resembling, an animal. [1913 Webster] …   The Collaborative International Dictionary of English

  • Zooid — o oid, n. 1. (Biol.) An organic body or cell having locomotion, as a spermatic cell or spermatozooid. [1913 Webster] 2. (Zo[ o]l.) (a) An animal in one of its inferior stages of development, as one of the intermediate forms in alternate… …   The Collaborative International Dictionary of English

  • Zooïd — Zooïd, die einzelne Person in den Kolonien der Moostierchen, Korallen, Seescheiden und andrer stockbildenden Tiere …   Meyers Großes Konversations-Lexikon

  • zooid — zoòīd m <G zooída> DEFINICIJA biol. 1. organizam ili stanica sposobna za spontano kretanje i život manje ili više neovisan o drugim organizmima; zoon 2. kod životinja, jedinke koje nakon pupanja ostaju u zadruzi i među njima dolazi do… …   Hrvatski jezični portal

  • zooid — [zō′oid΄] n. [ ZO(O) + OID] 1. a comparatively independent animal organism produced by other than sexual methods, as by fission, gemmation, etc. 2. any of the individual members of a colonial or compound animal: used esp. of hydroids, corals, or… …   English World dictionary

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  • zooid — /zoh oyd/, Biol. n. 1. any organic body or cell capable of spontaneous movement and of an existence more or less apart from or independent of the parent organism. 2. any animal organism or individual capable of separate existence, and produced by …   Universalium

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