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
Conversely every positive quadratic surd number, when expressed as a simple continued fraction, will give rise to a recurring fraction.
From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 2 "Constantine Pavlovich" to "Convention" by Various
The problems have a surd or irrational element in them; and to solve them would be to bring reason into collision with itself.
From Browning as a Philosophical and Religious Teacher by Jones, Henry, Sir
S has two sounds, soft, or surd, as in soft and this, and hard, or sonant, as in has and wise.
From Division of Words Rules for the Division of Words at the Ends of Lines, with Remarks on Spelling, Syllabication and Pronunciation by Hamilton, Frederick W. (Frederick William)
Just the same, two and two always make four," he said to himself; "but in my calculations perhaps I have forgotten the surd.
From The Secret of the Night by Leroux, Gaston
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.
