noun
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maths an expression containing one or more irrational roots of numbers, such as 2√3 + 3√2 + 6
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phonetics a voiceless consonant, such as ( t )
adjective
Etymology
Origin of surd
First recorded in 1545–55, surd is from the Latin word surdus dull-sounding, mute, deaf
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It offers private, group and corporate surf lessons, as well as an after-school program, surd camps and rentals, according to its website.
From Washington Times ● Aug. 12, 2021
What meaneth this old dotard, surd and absurd, thus to control our actions?
From Cameos from English History, from Rollo to Edward II by Charlotte Mary Yonge
Do you mean to say that you are not able to tell me what a surd is?
From A Portrait of the Artist as a Young Man by James Joyce
Adj. deaf, earless†, surd; hard of hearing, dull of hearing; deaf-mute, stunned, deafened; stone deaf; deaf as a post, deaf as an adder, deaf as a beetle, deaf as a trunkmaker†. inaudible, out of hearing.
From Roget's Thesaurus of English Words and Phrases by Peter Mark Roget
Adj. numeral, complementary, divisible, aliquot, reciprocal, prime, relatively prime, fractional, decimal, figurate†, incommensurable. proportional, exponential, logarithmic, logometric†, differential, fluxional†, integral, totitive†. positive, negative; rational, irrational; surd, radical, real; complex, imaginary; finite; infinite; impossible.
From Roget's Thesaurus of English Words and Phrases by Peter Mark Roget
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
