chorioallantois


cho·rio·al·lan·to·is

noun \ˌkr-ē-(ˌ)ō-ə-ˈlan-tə-wəs\

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
cho·rio·al·lan·to·ic \-ˌa-lən-ˈtō-ik\ adjective

Origin of CHORIOALLANTOIS

New Latin, from Greek chorion + New Latin allantois
First Known Use: 1933

cho·rio·al·lan·to·is

noun \ˌkōr-ē-ō-ə-ˈlant-ə-wəs, ˌkr-\   (Medical Dictionary)
plural cho·rio·al·lan·to·ides \-ō-ˌal-ən-ˈtō-ə-ˌdēz, -ō-ˌal-ˌan-\

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
cho·rio·al·lan·to·ic \-ˌal-ən-ˈtō-ik\ adjective

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