real number

noun

: a number that has no imaginary part

the set of all real numbers comprises the rationals and the irrationals

First Known Use

circa 1909, in the meaning defined above

Time Traveler

The first known use of real number was circa 1909

See more words from the same year

Style

“Real number.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/real%20number. Accessed 2 Dec. 2024.

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real number

noun

: a number (as −2, 3, ⅞, .25, 12, π) that is rational or irrational

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