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tail fin


Simple Definition of tail fin

  • : a fin at the back end of a fish, whale, etc.

  • : a decorative part on the back of a car that is shaped like a fish's fin

Source: Merriam-Webster's Learner's Dictionary

Full Definition of tail fin

  1. 1 :  the terminal fin of a fish or cetacean

  2. 2 :  fin 2b


First Known Use of tail fin


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