fric·​tion·​al | \ ˈfrik-shnəl How to pronounce frictional (audio) , -shə-nᵊl \

Definition of frictional

1 : of or relating to friction
2 : moved or produced by friction

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Other Words from frictional

frictionally adverb

Examples of frictional in a Sentence

Recent Examples on the Web The reason the object will stop is that the frictional force that causes the velocity to slow down is created by millions of tiny jagged imperfections of the two surfaces rubbing against each other. Quanta Magazine, "Solution: ‘Natural Law and Elegant Math’," 17 Jan. 2020 Although hype and secrecy muddy the picture, all three nations appear to have made substantial progress in overcoming key obstacles, such as protecting hypersonic craft from savage frictional heating. Richard Stone, Science | AAAS, "‘National pride is at stake.’ Russia, China, United States race to build hypersonic weapons," 8 Jan. 2020 For that to happen, an external force has to be applied to overcome the frictional forces. Chris Lee, Ars Technica, "Atoms spin backward while flying along a surface," 23 Sep. 2019 Finally, there’s the backwards-pushing frictional force. Rhett Allain, Popular Mechanics, "How to Hack Jenga Using Science," 25 Sep. 2019 The resulting calculation shows that the total frictional force on the atom is reduced but does not vanish entirely. Chris Lee, Ars Technica, "Atoms spin backward while flying along a surface," 23 Sep. 2019 Finally, there is the frictional force (Ff) between the tires and the road. Wired, "You're Racing Toward a Wall. Should You Brake Hard—or Swerve?," 27 Aug. 2019 The second block had a frictional force acting on it, whereas the rolling cart had essentially no friction. Rhett Allain, WIRED, "Hey Teachers, Get to Know Your Students' Preconceptions," 22 Aug. 2019 There are frictional costs associated with moving, but people will do the mental math and figure out if the long-term gain from a lower tax bill exceeds the short-term pain from moving. Jared Dillian, Twin Cities, "Jared Dillian: High-tax states are practicing financial destruction," 11 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'frictional.' 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 frictional

1850, in the meaning defined at sense 1

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The first known use of frictional was in 1850

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Cite this Entry

“Frictional.” Dictionary, Merriam-Webster, Accessed 4 Jul. 2020.

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