chorioallantois
noun
cho·rio·al·lan·to·is ˌkȯr-ē-(ˌ)ō-ə-ˈlan-tə-wəs 
: 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
chorioallantoic
ˌkȯr-ē-(ˌ)ō-ˌa-lən-ˈtō-ik
adjective 
Word History
Etymology
New Latin, from Greek chorion + New Latin allantois
First Known Use
1933, in the meaning defined above
Medical Definition
chorioallantois
noun
cho·rio·al·lan·to·is ˌkōr-ē-ō-ə-ˈlant-ə-wəs, ˌkȯr-
plural chorioallantoides -ō-ˌal-ən-ˈtō-ə-ˌdēz, -ō-ˌal-ˌan-
: 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
- intersession
- intersessions
- interset
- intersex
- intersexes
- intersexual
- intersexualism
- intersexualisms
- intersexualities
- intersexuality
- intersexually
- intershoot
- intersocial
- intersocietal
- intersociety
- intersole
- intersow
- interspace
- interspaced
- interspaces
- interspacing
- interspatial
- interspatially
- interspecies
- interspecific