Medical Dictionary

amphioxus

noun am·phi·ox·us \ˌam(p)-fē-ˈäk-səs\
plural -oxi \-ˌsī, -ˌsē\ or am·phi·ox·us·es

Medical Definition of AMPHIOXUS

:  a lancelet of the genus Branchiostoma; broadly :  lancelet

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