Heterocercy
Het´er`o`cer`cy
n. | 1. | (Anat.) Unequal development of the tail lobes of fishes; the possession of a heterocercal tail. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
n. | 1. | (Anat.) Unequal development of the tail lobes of fishes; the possession of a heterocercal tail. |