单词 | exoseptum |
释义 | > as lemmasexoseptum exoseptum n. Brit. /ˌɛksə(ʊ)ˈsɛptəm/ , U.S. /ˌɛksəˈsɛptəm/ , /ˌɛksoʊˈsɛptəm/ Zoology each of the calcareous septa appearing in the exocœle of a coral polyp.ΚΠ 1885 G. H. Fowler in Q. Jrnl. Microsc. Sci. XXV. 578 The septa lying in these two classes of chambers are similarly called exosepta and entosepta. 1903 Ann. & Mag. Nat. Hist. Feb. 147 The union of the entoseptum within each pair of the second cycle mesenteries with the adjoining exosepta. 1904 Biol. Bull. July 82 The dorsal and middle pairs of exosepta arose bilaterally in advance of the two ventral pairs. < as lemmas |
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