frictional

adjective
fric·​tion·​al | \ˈfrik-shnəl, -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 maximum frictional force depends on two things. Rhett Allain, WIRED, "This Tug of War With a Lion Isn't About Strength—It's About Friction," 18 June 2018 This ball will essentially act like an object moving with a constant velocity since the frictional force is small. Rhett Allain, WIRED, "The Physics of the Speeder Chase in Solo: A Star Wars Story," 12 Mar. 2018 The jet itself is driven by the Earth’s uneven heat budget, with hot tropics and cold (though not matching) poles, and the Coriolis force, the frictional result of the Earth’s rotation. Geoff Fox, Slate Magazine, "Why Is It So Cold Outside?," 5 Jan. 2018 Silk, for instance, can help prevent frictional forces from creating premature wrinkles on your face, according to Joshua Zeichner, the director of cosmetic and clinical research in dermatology at Mount Sinai Hospital in New York City. Lauren Swanson, Allure, "9 Bed Sheet Sets That Will Make Your Bed Even More Luxurious," 19 Feb. 2018 But taken down to its coldest levels, a helium-4 superfluid knows no frictional boundaries. David Grossman, Popular Mechanics, "The Quest for Absolute Zero Turns Up Strange and Surreal Superfluids," 12 Oct. 2017 The formidable hillsides are subjected to deeper subsurface forces that come into play as groundwater shifts the frictional properties of the soil. Thomas Curwen, latimes.com, "More than 1,000,000 tons of rock and dirt has to be moved off Highway 1. But how?," 26 May 2017 How much does the frictional force increase with each new loop around the cylinder? Rhett Allain, WIRED, "MythBusters Physics Homework: Whips and Pendulums," 22 Jan. 2015

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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