tailfin
/ˈteɪlˌfɪn/
noun
- A fin at the rear of a fish or other aquatic animal, used for propulsion and steering.
- The fish lost part of its tailfin in an attack but still swam well.
- The shark's tailfin pushed it powerfully through the ocean.
- The dolphin's tailfin moves up and down, not side to side like a fish's.
- A vertical fin at the rear of an aircraft, providing stability.
- The tailfin helps keep the plane flying straight.
- The pilot checked the tailfin for ice before takeoff.
- The airplane's tailfin had the airline's logo painted on it.
- A decorative fin-like feature on the rear of a car, popular in the 1950s.
- The vintage car had large chrome tailfins that made it look like a rocket.
- He restored the tailfins on his classic Cadillac to their original shine.
- Tailfins on cars were a style trend in the mid-20th century.
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