from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A fin at the posterior part of the body of a fish, crustacean, whale, or other aquatic animal.
  • n. An ornamental projection shaped like a fin on the rear fender of an automobile. Also called fin1.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Alternative spelling of tailfin.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the tail of fishes and some other aquatic vertebrates
  • n. a stabilizer that is part of the vertical tail structure of an airplane
  • n. one of a pair of decorations projecting above the rear fenders of an automobile


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