vertical stabiliser(n = noun.artifact) tail fin, tailfin, vertical fin, 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

horizontal stabiliser, stabiliser, vertical, vertical angle, vertical bank, vertical circle, vertical combination, vertical file, vertical fin, vertical flute, vertical integration, vertical section, vertical stabilizer, vertical surface, vertical tail, vertical union