slide rule


Definition of slide rule

: a manual device used for calculation that consists in its simple form of a ruler and a movable middle piece which are graduated with similar logarithmic scales

Examples of slide rule in a Sentence

Recent Examples on the Web Think of an armillary sphere like a circular slide rule with four separate axes. Caroline Delbert, Popular Mechanics, "This Is the Only Working Armillary Sphere on Earth," 2 Jan. 2020 The pitch clocks, slide rules, protective netting, limited mound visits and three-batter minimums are the least of baseball’s worries. Jeff Bailey, The Denver Post, "Festivus 2019: The airing of grievances, sports edition," 23 Dec. 2019 Sporting a gray double-breasted suit, slicked-back curls and a slide rule, rocket engineer Wernher von Braun cuts a suave, authoritative figure in Disney’s 1955 television special Man and the Moon. Alejandro De La Garza, Time, "How Historians Are Reckoning With the Former Nazi Who Launched America's Space Program," 18 July 2019 Breitling Navitimer 1 Automatic 41 The Breitling Navitimer watch family gets an elegant addition with this stainless steel and alligator strap variation, featuring stylish details including a circular slide rule and beaded bezel. ... Alexander Fisher, WSJ, "Baselworld Report: Our 10 Favorite Watches," 26 Mar. 2019 Architects have ditched their slide rules for computer software, but big buildings don’t get constructed without them. Liz Hoffman And Telis Demos, WSJ, "Wall Street Erases the Line Between Its Jocks and Nerds," 18 Aug. 2018 Malcolm Sayer at Jaguar was a pioneer here, applying his slide rule to the design of the Jaguar C-Type in order to win Le Mans in 1951 and then again in 1953. Jonathan M. Gitlin, Ars Technica, "How a day driving high-downforce cars at VIR taught me I’m OK being slow," 11 Sep. 2018 The basic office gym—with a handful of treadmills and weight equipment—also is going the way of the slide rule. Keiko Morris, WSJ, "Amenity-Laden Buildings Are Suburban Landlords’ Latest Tool to Attract Tenants," 10 June 2018 In a twist of irony, Simmons was actually determined to have violated the slide rule in the fourth inning as Odor tried to turn a double play. Jeff Wilson, star-telegram, "Rangers Reaction: The flawed thinking of those miffed by Banister's comments," 3 June 2018

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

1663, in the meaning defined above

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Time Traveler for slide rule

Time Traveler

The first known use of slide rule was in 1663

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Statistics for slide rule

Last Updated

15 Jan 2020

Cite this Entry

“Slide rule.” The Dictionary, Merriam-Webster Inc., Accessed 20 January 2020.

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More Definitions for slide rule

slide rule


English Language Learners Definition of slide rule

: an old-fashioned instrument that is like a ruler with a middle piece that slides back and forth and that is used to do calculations

More from Merriam-Webster on slide rule Encyclopedia article about slide rule

Comments on slide rule

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


not to be intimidated or subdued

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