Skip to Content


Pronunciation: hi'po-blast

Definition: Cell layer adjacent to the yolk sac cavity and subjacent to the epiblast of a bilayered embryo.

[hypo- + G. blastos, germ]

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.