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Medical Term:


Pronunciation: em'bre-o-blast'

Definition: The mass of cells at the embryonic pole of the blastocyst that forms the embryo and some extraembryonic or adnexal tissues.

Synonym(s): inner cell mass

[embryo- + G. blastos, germ]

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.