embryo sac


Definition of EMBRYO SAC

:  the female gametophyte of a seed plant consisting of a thin-walled sac within the nucellus that contains the egg nucleus and other nuclei which give rise to endosperm on fertilization

First Known Use of EMBRYO SAC



Next Word in the Dictionary: embryoticPrevious Word in the Dictionary: embryophyteAll Words Near: embryo sac
July 06, 2015
categorical Hear it
absolute or relating to a category
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears