tail fin
AmericanEtymology
Origin of tail fin
First recorded in 1675–85
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Saudi Arabia’s national flag could be seen on what appeared to be a tail fin in multiple shots.
From The Wall Street Journal ● Sep. 16, 2026
Another auditor found cracks in approximately 40% of the fittings that attached the vertical tail fin to the fuselage, also called “dagger fittings,” that slipped past Dean while he was focused on the drilling errors.
From Seattle Times ● Feb. 21, 2024
Taking inspiration from the power of a whale's fins, the team studied the structure and movement of the tail fin to unravel how it effectively uses wave energy for propulsion.
From Science Daily ● Nov. 27, 2023
The female specimen is roughly 14 inches, measuring from mouth to tail fin, according to Michelle Horeczko, a senior environmental scientist supervisor with the Department of Fish and Wildlife.
From Los Angeles Times ● Oct. 21, 2023
The Wart’s legs had fused together into his backbone and his feet and toes had become a tail fin.
From "The Once and Future King" by T. H. White
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.