ALLANTOIS


Meaning of ALLANTOIS in English

[al.lan.to.is] n, pl al.lan.to.ides [NL, ultim. fr. Gk allant-, allas sausage] (1646): 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 adj

Merriam-Webster English vocab.      Английский словарь Merriam Webster.