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caudal fin

noun

the terminal vertical fin of a fish.

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Also called tail fin.

Words nearby caudal fin

caudad, cauda equina, caudaite, caudal, caudal anesthesia, caudal fin, caudal flexure, caudal transverse fissure, cauda pancreatis, caudate, caudate lobe
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for caudal fin

caudal fin

noun

the tail fin of fishes and some other aquatic vertebrates, used for propulsion during locomotion
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012