| homocercal | (adj) possessing a symmetrical tail that extends beyond the end of the vertebral column (as in most bony fishes), Ant. heterocercal |
| homocercal fin | (n) symmetrical tail fin extending beyond the end of the vertebral column as in most bony fishes, Ant. heterocercal fin |
| Homocercal | a. [ Homo- + Gr. &unr_; tail. ] (Zool.) Having the tail nearly or quite symmetrical, the vertebral column terminating near its base; -- opposed to heterocercal. [ 1913 Webster ] |