tail fin
尾鰭
tail fin
n 1: a stabilizer that is part of the vertical tail structure of
an airplane [syn: vertical stabilizer, vertical
stabiliser, vertical fin, tailfin]
2: one of a pair of decorations projecting above the rear
fenders of an automobile [syn: tailfin, fin]
3: the tail of fishes and some other aquatic vertebrates [syn:
caudal fin]