heterocercal fin


Also found in: Thesaurus, Medical, Encyclopedia.
Related to heterocercal fin: homocercal, Paired fins, pelvic fin
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.heterocercal fin - a tail fin with unequal lobes in which the vertebral column turns upward into the larger lobe as in sharksheterocercal fin - a tail fin with unequal lobes in which the vertebral column turns upward into the larger lobe as in sharks
caudal fin, tail fin - the tail of fishes and some other aquatic vertebrates
homocercal fin - symmetrical tail fin extending beyond the end of the vertebral column as in most bony fishes
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.