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单词 ootype
释义

> as lemmas

ootype
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.
extracted from oo-comb. form
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as lemmas
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更新时间:2024/12/22 21:53:03