单词 | zoothecium |
释义 | > as lemmaszoothecium zoothecium n. Brit. /ˌzuːə(ʊ)ˈθiːsɪəm/ , /ˌzəʊə(ʊ)ˈθiːsɪəm/ , U.S. /ˌzoʊəˈθisiəm/ , /ˌzuəˈθisiəm/ (plural zoothecia) now rare an aggregate of the fused shells or protective sheaths of certain aquatic colonial protozoans; cf. polythecium n., zoodendrium n.ΘΚΠ the world > animals > invertebrates > protozoa > class Infusoria > [noun] > member of > parts of > sheath produced or inhabited by lorica1856 zoothecium1880 1880–1 W. Saville-Kent Man. Infusoria I. 61 For these aggregations of..simple loricæ the distinctive title of zoöthecia has been adopted. 1895 19th Ann. Rep. Boston Water Board 1894–5 77 Social, forming a compound branching zoothecium. Genus Dinobryon. 1963 I. F. Henderson & W. D. Henderson Dict. Biol. Terms (ed. 8) 637/2 Zoothecium, zoocytium. < as lemmas |
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