Medical Dictionary
4 ENTRIES FOUND:

yolk

noun \ˈyōk\

Definition of YOLK

:  material stored in an ovum that supplies food to the developing embryo and consists chiefly of proteins, lecithin, and cholesterol
April 01, 2015
diapause Hear it
a period of physiological dormancy
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