Medical Dictionary


noun cleav·age \ˈklē-vij\

Medical Definition of CLEAVAGE

:  the series of synchronized mitotic cell divisions of the fertilized egg that results in the formation of the blastomeres and changes the single-celled zygote into a multicellular embryo; also :  one of these cell divisions
:  the splitting of a molecule into simpler molecules
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