chorioallantois

noun
cho·​rio·​al·​lan·​to·​is | \ ˌkȯr-ē-(ˌ)ō-ə-ˈlan-tə-wəs How to pronounce chorioallantois (audio) \

Definition of chorioallantois

: a vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois that in the hen's egg is used as a living culture medium for viruses and for tissues

called also chorioallantoic membrane

Other Words from chorioallantois

chorioallantoic \ ˌkȯr-​ē-​(ˌ)ō-​ˌa-​lən-​ˈtō-​ik How to pronounce chorioallantoic (audio) \ adjective

First Known Use of chorioallantois

1933, in the meaning defined above

History and Etymology for chorioallantois

New Latin, from Greek chorion + New Latin allantois

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The first known use of chorioallantois was in 1933

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Cite this Entry

“Chorioallantois.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chorioallantois. Accessed 23 Sep. 2020.

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More Definitions for chorioallantois

chorioallantois

noun
cho·​rio·​al·​lan·​to·​is | \ ˌkōr-ē-ō-ə-ˈlant-ə-wəs, ˌkȯr- How to pronounce chorioallantois (audio) \
plural chorioallantoides\ -​ō-​ˌal-​ən-​ˈtō-​ə-​ˌdēz, -​ō-​ˌal-​ˌan-​ How to pronounce chorioallantoides (audio) \

Medical Definition of chorioallantois

: a vascular fetal membrane composed of the fused chorion and adjacent wall of the allantois that in the hen's egg is used as a living culture medium for viruses and for tissues

called also chorioallantoic membrane

Other Words from chorioallantois

chorioallantoic \ -​ˌal-​ən-​ˈtō-​ik How to pronounce chorioallantoic (audio) \ adjective

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