homocercal[hō′mō sʉr′kəl, häm′ō-]
homocercal definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
designating, of, or having a tail fin in which the upper and lower lobes are symmetrical and in which the spine is shortened and ends at or near the center of the base, as in most bony fishes
Origin: ; from homo- plush Classical Greek kerkos, a tail plush -al
homocercal definition by American Heritage Dictionary
Relating to, designating, or characterized by a tail fin having two symmetrical lobes extending from the end of the vertebral column, as in most bony fishes.
Origin: homo- + Greek kerkos, tail + -al1.