单词 | monochorial |
释义 | monochorialadj. 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). < adj.1902 |
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