Dictionary

embryo sac

noun

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
ADVERTISEMENT

First Known Use of EMBRYO SAC

1844

Browse

Next Word in the Dictionary: embryoticPrevious Word in the Dictionary: embryophyteAll Words Near: embryo sac
ADVERTISEMENT
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