actinotrocha

noun
ac·​ti·​not·​ro·​cha | \ˌak-tə-ˈnä-trə-kə\
plural actinotrochae\ˌak-​tə-​ˈnä-​trə-​ˌkē \

Definition of actinotrocha 

: the free-swimming larva of the genus Phoronis

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First Known Use of actinotrocha

1871, in the meaning defined above

History and Etymology for actinotrocha

New Latin, from actin- + -trocha

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The first known use of actinotrocha was in 1871

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