Medical Dictionary

assisted hatching

noun as·sist·ed hatching \ə-ˌsis-təd-\

Medical Definition of assisted hatching

  1. :  a technique for assisting reproduction in cases of infertility that involves manipulating (as by creating a small opening in) the zona pellucida of a fertilized egg usually a few days after in vitro fertilization to facilitate its implantation in the uterine endometrium Assisted hatching involves the disruption of the zona pellucida before the embryo transfer to potentially enhance implantation.—Beth A. Malizia et al., The New England Journal of Medicine, 15 Jan. 2009

Seen and Heard

What made you want to look up assisted hatching? Please tell us where you read or heard it (including the quote, if possible).


a trip made at another's expense

Get Word of the Day daily email!