Medical Dictionary


noun op·po·nens \ə-ˈpō-ˌnenz\
plural op·po·nen·tes \ˌäp-ə-ˈnen-(ˌ)tēz\ or op·po·nens

Medical Definition of OPPONENS

:  any of several muscles of the hand or foot that tend to draw one of the lateral digits across the palm or sole toward the others
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