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amphioxus

amphioxus

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

Definition of AMPHIOXUS

:  any of a genus (Branchiostoma) of lancelets; broadly :  lancelet

Origin of AMPHIOXUS

New Latin, from amphi- + Greek oxys sharp
First Known Use: 1847

amphioxus

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

Medical Definition of AMPHIOXUS

:  a lancelet of the genus Branchiostoma; broadly :  lancelet

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