real number


Definition of real number

: a number that has no imaginary part the set of all real numbers comprises the rationals and the irrationals

Examples of real number in a Sentence

Recent Examples on the Web

The count is imperfect because some organizations include the homeless who die in a hospital or emergency housing, and all say the real number will never be known and could be higher. Washington Post, "Paris officials sleep outdoors to call attention to homeless," 1 Mar. 2018 But Iraqi politicians opposed to their presence say the real number is much higher and includes combat forces. Isabel Coles, WSJ, "Pentagon Chief Swoops In After Trump Vexes Iraqis," 12 Feb. 2019 Its advocates believe that roughly 30 Republican senators could be supportive, Politico’s Burgess Everett has reported, while detractors like Cotton argue that the real number is much lower. Li Zhou, Vox, "Republicans’ civil war over criminal justice reform, explained," 12 Dec. 2018 Critics said the new policy was unfair and that the real number of families affected by the change would be far higher. Jessica Donati, WSJ, "Trump Administration Halts Some Same-Sex Visas for Foreign Officials in U.S.," 2 Oct. 2018 Though that number may seem absurdly large, the real numbers are also eye-popping. Beth Mole, Ars Technica, "Sperm donor #2757 sired at least 45 kids—now they’re connecting online," 13 Sep. 2018 Although real numbers are classified, tank authority Stephen Zaloga estimates the M1’s frontal hull offers 700 millimeters of protection, while the frontal arc offers the equivalent of 1,300 millimeters of armor protection against shaped charges. Kyle Mizokami, Popular Mechanics, "Russia Claims New Missile Can Clobber U.S. Tanks, But Can It Really?," 11 Sep. 2018 Authorities have acknowledged killing more than 4,200 drug suspects who resisted arrest, AFP reports, but rights groups say the real number is at least triple that figure. Casey Quackenbush, Time, "Sri Lanka Will Start Hanging Its Drug Dealers to 'Replicate the Success of Philippines'," 12 July 2018 For example, a technique called arithmetic coding subdivides the real number line between 0 and 1 so that each symbol's share of the interval is proportional to the frequency with which the symbol is expected to appear in the data. Timothy B. Lee, Ars Technica, "Inventor says Google is patenting work he put in the public domain," 10 June 2018

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

circa 1909, in the meaning defined above

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Dictionary Entries near real number




real number

real part



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Last Updated

13 Apr 2019

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Time Traveler for real number

The first known use of real number was circa 1909

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an act or instance of returning to life

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