Medical Dictionary

archenteron

noun arch·en·ter·on \är-ˈkent-ə-ˌrän, -rən\
plural arch·en·tera \-ə-rə\

Medical Definition of ARCHENTERON

:  the cavity of the gastrula of an embryo forming a primitive gut—called also gastrocoel

Browse

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