Medical Dictionary

ectocommensal

adj ec·to·com·men·sal \-kə-ˈmen(t)-səl\

Medical Definition of ECTOCOMMENSAL

:  living as a commensal on the body surface of another <ectocommensal protozoans>

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