homocercal


ho·mo·cer·cal

adjective \ˌhō-mə-ˈsər-kəl, ˌhä-\

Definition of HOMOCERCAL

1
of a fish tail fin :  having the upper and lower lobes approximately symmetrical and the vertebral column ending at or near the middle of the base
2
:  having or relating to a homocercal tail fin

First Known Use of HOMOCERCAL

1838

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