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单词 monochorial
释义

monochorialadj.

Brit. /ˌmɒnə(ʊ)ˈkɔːrɪəl/, U.S. /ˌmɑnəˈkɔriəl/
Origin: Formed within English, by compounding; modelled on a Polish lexical item. Etymons: mono- comb. form, chorial adj.
Etymology: < mono- comb. form + chorial adj., after Polish monochorialny (A. Rosner 1901, in Bull. Internat. de l'Acad. des Sci. de Cracovie No. 8. 443). Compare slightly earlier monochorionic adj.
Biology and Medicine.
= monochorionic adj.
ΚΠ
1902 Jrnl. Royal Microsc. Soc. 159 A. Rosner discusses the numerous theories as to the origin of monochorial twins.
1917 H. H. Newman Biol. of Twins 6 Monochorial twins are surrounded by a single chorionic membrane. Usually a single chorion covers but one embryo and comes from a single egg; hence it is customarily assumed that the monochorial condition implies a monozygotic condition.
1989 G. E. Klyve & C. G. Oakley Legend of Perseus i. 12 You see, Proetus and Acrisius were diamniotic, monochorial, monozygotic twins..and had found themselves competing for the same blood supply.
This is a new entry (OED Third Edition, December 2002; most recently modified version published online March 2022).
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adj.1902
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更新时间:2024/12/23 3:35:34