noun
1. a stabilizer that is part of the vertical tail structure of an airplane
• Syn: ↑vertical stabilizer, ↑vertical stabiliser, ↑vertical fin, ↑tailfin
• Hypernyms: ↑stabilizer
• Part Holonyms: ↑vertical tail
2. one of a pair of decorations projecting above the rear fenders of an automobile
• Hypernyms: ↑decoration, ↑ornament, ↑ornamentation
• Part Holonyms: ↑car, ↑auto, ↑automobile, ↑machine, ↑motorcar
3. the tail of fishes and some other aquatic vertebrates
• Syn: ↑caudal fin
• Hypernyms: ↑fin
• Hyponyms: ↑heterocercal fin, ↑homocercal fin
• Part Holonyms: ↑fish
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noun1. : caudal fin
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tail fin,
1. a fin at the tail end of the body of a fish, whale, or the like: »
It has two powerful pectoral fins at the front and a tail fin which acts as a skid at the rear (New Scientist).
2. any object like this, as that which sticks out on the tail of an airplane or on the rear fenders of an automobile.
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n. Zoology a fin at the posterior extremity of a fish's body, typically continuous with the tail. Also called caudal fin
■ Aeronautics a projecting vertical surface on the tail of an aircraft, providing stability and typically housing the rudder
■ an upswept projection on each rear corner of an automobile, popular in the 1950s
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noun, pl ⋯ fins [count]
2 : a decorative part on the back of a car that is shaped like a fish's fin
Useful english dictionary. 2012.