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allantois

One entry found for allantois.
Main Entry: al·lan·to·is
Pronunciation: &-'lan-t&-w&s
Function: noun
Inflected Form(s): plural al·lan·to·ides /"a-l&n-'tO-&-"dEz, "a-"lan-/
Etymology: New Latin, ultimately from Greek allant-, allas sausage
: 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
- al·lan·to·ic /"a-l&n-'tO-ik, "a-"lan-/ adjective