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
Seen and Heard
What made you want to look up homocercal? Please tell us where you read or heard it (including the quote, if possible).