英语词汇“gastrozooid”的英英意思、用法、释义、翻译、读音、例句、短语、词组、英语词典-本地帮

单词

gastrozooid

释义

gastrozooid Zool.|gæstrəʊˈzəʊɔɪd|
Also gastero-.
[f. gastro- + zooid n.]
A nutritive zooid in colony-forming Hydrozoa and Thaliacea.
1879H. N. Moseley in Phil. Trans. R. Soc. CLXIX. 429 In all Stylasteridæ two forms of zooids are present. One form has a mouth and gastric cavity, the other is devoid of these and has a purely tentacular function. For the former the term ‘gastrozooid’ is here adopted, and for the latter that of ‘dactylozooid’.1932Borradaile & Potts Invertebrata v. 147 The manubrium has come to lie outside the medusa bell as the gastrozooid.Ibid. xix. 608 These [buds] of the lateral row become gasterozooids which gather food for the community.1961Encycl. Brit. XII. 3/2 In certain colonies [sc. of polyps and medusæ], such as those of Millepora and Hydractinia.., the hydranths are not all alike. Some of them (gastrozooids) possess mouths as well as tentacles.1967E. J. W. Barrington Invert. Struct. & Function xxi. 449 The differentiation of the colonial polyps into gastrozooids, concerned with feeding, and gonozooids (blastozooids) concerned with reproduction.

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