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Definition of tailfin

tailfin

/ˈteɪl.fɪn/
tail · fin
Plural:tailfins
•
Adjective:tailfinned
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tailfin Lexical Profile

tailfin Game Scores & Validity

• noun

1

The fin located at the rear extremity of a fish or other aquatic animal, used primarily for propulsion and steering; the caudal fin.

Example

"The salmon used its powerful tailfin to leap over the rocky rapids."

2

A vertical stabilizing fin mounted at the rear of an aircraft, rocket, or missile.

Example

"The airline's distinctive logo was painted brightly across the airplane's tailfin."

3

A decorative, upward-projecting metal panel at the rear fender of an automobile, characteristic of mid-20th-century American car design.

Example

"The vintage 1959 Cadillac at the car show was famous for its dramatic chrome tailfins."

Synonyms
View all synonyms for tailfin

• Rhymes for tailfin

• Nearby Words

tailbone
tailcoat
tailender
tailfin
tailgate
tailgater
tailgating

Cite this Entry

Wordmom. (2026). Definition of Tailfin. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/tailfin
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