'tail fin' definitions:
Definition of 'tail fin'
(from WordNet)
noun
A stabilizer that is part of the vertical tail structure of an airplane [syn: vertical stabilizer, vertical stabiliser, vertical fin, tail fin, tailfin]
noun
One of a pair of decorations projecting above the rear fenders of an automobile [syn: tail fin, tailfin, fin]
noun
The tail of fishes and some other aquatic vertebrates [syn: tail fin, caudal fin]