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caudal fin

noun
1.
the terminal vertical fin of a fish.
Also called tail fin.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for caudal fin
  • The caudal fin is deeply emarginate and the belly lacks a keel.
  • The caudal fin margin is essentially straight or slightly notched.
  • The caudal fin is often completely destroyed and the fish may become dark colored.
  • Two distinct light brown spots surrounded by yellow are found at the base of the caudal fin.
  • Orbital bars are present, as is a distinct bar or spot at the base of the caudal fin.
  • Two prominent features of the swamp darter are a bar under the eye and one distinct spot at the base of the caudal fin.
  • The dorsal fin is long, extending from the pectoral fins almost to the base of the convex caudal fin.
  • The caudal fin is slightly notched, and the top of the upper lobe is white on all but extremely large individuals.
  • The trailing edge of the caudal fin is rounded or almost triangular.
  • The caudal fin is square and there is a pronounced adipose fin.
British Dictionary definitions for caudal fin

caudal fin

noun
1.
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
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Word Value for caudal

9
12
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