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al·lan·to·is | \ ə-ˈlan-tə-wəs 
\
\ plural allantoides\ ˌa-lən-ˈtō-ə-ˌdēz , ˌa-ˌlan- \
, ˌa-ˌlan- \Definition of allantois
: a vascular fetal membrane of reptiles, birds, and mammals that is formed as a pouch from the hindgut and that in placental mammals is intimately associated with the chorion in formation of the placenta
Other Words from allantois
allantoic \ ˌa-lən-ˈtō-ik , ˌa-ˌlan- \ adjective
, ˌa-ˌlan- \ adjectiveKeep scrolling for more
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More Definitions for allantois
allantois
nounal·lan·to·is | \ ə-ˈlant-ə-wəs \
\ plural allantoides\ ˌal-ən-ˈtō-ə-ˌdēz , ˌal-ˌan- \
, ˌal-ˌan- \Medical Definition of allantois
: a vascular fetal membrane of reptiles, birds, or mammals that is formed as a pouch from the hindgut and that in placental mammals is intimately associated with the chorion in formation of the placenta
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Time Traveler for allantois
The first known use of allantois was in 1615
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