| 单词 | chorioallantois |
| 释义 | chorioallantois[ kawr-ee-oh-uh-lan-toh-is, ‐tois, kohr‐ ] / ˌkɔr i oʊ əˈlæn toʊ ɪs, ‐tɔɪs, ˌkoʊr‐ / noun Embryology, Zoology.a vascular, extraembryonic membrane of birds, reptiles, and certain mammals, formed by the fusion of the wall of the chorion with the wall of the allantois. Also called chorioallantoic membrane. Origin of chorioallantoisFirst recorded in 1930–35 OTHER WORDS FROM chorioallantoischo·ri·o·al·lan·to·ic [‐al-uhn-toh-ik], /‐ˌæl ənˈtoʊ ɪk/, adjectiveWords nearby chorioallantoischoric, chorine, chorio-, chorioadenoma, chorioadenoma destruens, chorioallantois, chorioamnionitis, chorioangioma, chorioangiosis, choriocapillaris, choriocapillary layer Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Medical definitions for chorioallantoischorioallantois [ kôr′ē-ō′ə-lăn′tō-ĭs ] n.The highly vascular extraembryonic membrane formed by the fusion of the allantois with the chorion that constitutes the placenta in most mammals. Other words from chorioallantoischo′ri•o•al′lan•to′ic (-ō-ăl′ən-tō′ĭk) adj.The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
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