Medical Dictionary

theca interna

noun theca in·ter·na \-in-ˈtər-nə\

Medical Definition of THECA INTERNA

:  the inner layer of the theca folliculi that is highly vascular and that contributes theca lutein cells to the formation of the corpus luteum

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