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

单词	cystid
释义	cystid\|ˈsɪstɪd\| [f. mod.L. cystis cyst + -id.] 1. Geol. A member of the order Cystidea or Cystoidea of fossil echinoderms; a cystidean. 1862Dana Man. Geol. 162 The Cystids are the most anomalous of Radiates.1877Le Conte Elem. Geol. (1879) 299 Stemmed Echinoderms or Crinoids, may be divided into three families, viz.: 1. Crinids, 2. Cystids, 3. Blastids. 2. Zool. ‘The sac-like ciliated embryo of some of the Polyzoa’ (Syd. Soc. Lex.). 1877Huxley Anat. Inv. Anim. viii. 459 From one end of this cystid, one or more polypides are developed from thickenings of the wall of the sac.
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