Skip to Content


Pronunciation: blas′tō-sīt

Definition: An undifferentiated blastomere of the morula, blastula, or blastocyst stage of an embryo.

[blasto- + G. kytos, cell]

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.