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Noun: tailfin
  1. A stabilizer that is part of the vertical tail structure of an aeroplane
    - vertical stabilizer, vertical stabiliser [Brit], vertical fin, tail fin
     
  2. One of a pair of decorations projecting above the rear fenders of an automobile
    - tail fin, fin
Noun: tail fin  teyl fin
  1. The tail of fishes and some other aquatic vertebrates
    - caudal fin

Derived forms: tail fins, tailfins

Type of: decoration, fin, ornament, ornamentation, stabiliser [Brit], stabilizer

Part of: auto, automobile, car, fish, machine, motorcar, vertical tail

Encyclopedia: Tailfin

Tail fin