单词 | ootype |
释义 | > as lemmasootype ootype n. Brit. /ˈəʊə(ʊ)tʌɪp/ , U.S. /ˈoʊəˌtaɪp/ Zoology a small sac connecting the oviduct and the uterus in certain flatworms, in which the egg is fertilized and provided with a shell.ΚΠ 1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 649 In the monogenetic [Trematoda] its [sc. the egg's] shape varies, and is determined by that of the ‘ootype’. 1933 Amer. Midland Naturalist 14 659 Oötype, a genital organ in certain tapeworms. Not a nomenclatural term. 1994 E. E. Ruppert & R. D. Barnes Invertebr. Zool. (ed. 6) vi. 244/1 The ootype is surrounded by conspicuous unicellular gland cells important in egg capsule formation. < as lemmas |
随便看 |
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。