tail fin Meaning, Definition & Usage

  1. noun a stabilizer that is part of the vertical tail structure of an airplane
    vertical stabilizer; vertical stabiliser; vertical fin; tailfin.
  2. noun one of a pair of decorations projecting above the rear fenders of an automobile
    fin; tailfin.
  3. noun the tail of fishes and some other aquatic vertebrates
    caudal fin.

WordNet