Medical Dictionary

allantois


allantois

noun al·lan·to·is \ə-ˈlant-ə-wəs\
plural al·lan·to·ides \ˌal-ən-ˈtō-ə-ˌdēz, ˌal-ˌan-\

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
February 28, 2015
pontificate Hear it
To speak pompously or dogmatically
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