单词 | exoderm |
释义 | > as lemmasexoderm exoderm n. Brit. /ˈɛksə(ʊ)dəːm/ , U.S. /ˈɛksəˌdərm/ the outer layer of the blastoderm; = ectoderm n. at ecto- comb. form ; also, the external crust of the body of an insect. [Compare scientific Latin exoderma (1828), French exoderme (1834 or earlier), both denoting the external crust of the body of an insect, and German Exoderm ectoderm (1872 or earlier).] ΚΠ 1879 tr. E. Haeckel Evol. Man I. viii. 197 The protoplasm of the exoderm cells. 1884 New Sydenham Soc. Lexicon Exoderm. < as lemmas |
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