Sentence Examples with the word allantoic

More remarkable still is the development of a small allantoic placenta.

It is found in the allantoic liquid of the cow, and in the urine of sucking calves.

Near affinity; and while more nearly related to the Marsupialia (q.v.), in which an imperfect allantoic placenta is sometimes developed, it is broadly distinguished therefrom by the invariable presence of a functional placenta by the aid of which the foetus is nourished throughout the greater portion of intra-uterine life.

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As a rule there is no allantoic placenta forming the means of communication between the blood of the parent and the foetus, and when such a structure does occur its development is incomplete.