tail fin


Definition of tail fin

1 : the terminal fin of a fish or cetacean

Examples of tail fin in a Sentence

Recent Examples on the Web

Additionally, salmon caught in the personal use fishery must be marked by clipping the tips of their tail fins before they’re concealed from view or transported from the fishing site. Matt Tunseth, Anchorage Daily News, "Kenai River dipnetting opens Wednesday - and fish counts are promising," 9 July 2019 Underestimating the threat Iacocca came along at a time when tail fins, throaty engines, and flashy extras sold new cars. John Gallagher, Detroit Free Press, "Lee Iacocca wasn't perfect: 3 times the auto icon got it all wrong," 6 July 2019 Pumping hydraulic fluid into one side of the tail fin inflates the skin and causes the fin to bend around the stiffer center sections towards the other side. Emily Toomey, Smithsonian, "Engineers Built a Robotic Lionfish With an Energetic Bloodstream," 19 June 2019 Kline’s team will later maneuver the siren into a wet sock, take a clipping of its tail fin for genetic analysis in the lab, then photograph it to analyze the unique markings on its head. Asher Elbein, Washington Post, "An unintended consequence of more fencing at the border? It might make it harder to identify a new salamander species.," 18 June 2019 The one-ton, barn-door-sized tail fin and rudders were simply gone. Kyle Mizokami, Popular Mechanics, "The Time a B-52 Landed Without a Tail Fin," 1 Aug. 2017 The tall tail fin was just the styling cue Earl was looking for. Patrick Cooke, WSJ, "‘Fins’ Review: Chrome-Age Technology," 16 Nov. 2018 With its large, bulbous body and small tail fins, the XM-388 looked like a cartoon caricature of a bomb. Kyle Mizokami, Popular Mechanics, "The Time Bobby Kennedy Watched the Smallest Nuclear Explosion Ever," 2 May 2016 Intel’s machine learning and modified facial recognition software also allow the drone to recognize a particular whale’s fluke print, a pattern of nicks and other imperfections in a tail fin that are as personal as a human’s fingerprint. Jeffrey Kluger, Time, "How Drones Are Helping Scientists Study and Protect Endangered Whales," 31 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tail fin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of tail fin

1681, in the meaning defined at sense 1

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Statistics for tail fin

Last Updated

25 Jul 2019

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Time Traveler for tail fin

The first known use of tail fin was in 1681

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More Definitions for tail fin

tail fin


English Language Learners Definition of tail fin

: a fin at the back end of a fish, whale, etc.
: a decorative part on the back of a car that is shaped like a fish's fin

More from Merriam-Webster on tail fin

Rhyming Dictionary: Words that rhyme with tail fin

Comments on tail fin

What made you want to look up tail fin? Please tell us where you read or heard it (including the quote, if possible).


a period when something is suspended

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