tail fin

Noun tail fin has 3 senses

• tail fin(n = noun.artifact) tailfin, vertical fin, vertical stabiliser, vertical stabilizer - a stabilizer that is part of the vertical tail structure of an airplane;
is a kind of stabilizer
is a part of vertical tail

• tail fin(n = noun.artifact) fin, tailfin - one of a pair of decorations projecting above the rear fenders of an automobile;
is a part of auto, automobile, car, machine, motorcar
is a kind of decoration, ornament, ornamentation

• tail fin(n = noun.animal) caudal fin - the tail of fishes and some other aquatic vertebrates;
is a kind of fin
has particulars: heterocercal fin, homocercal fin
is a part of fish