surd

[ surd ]
See synonyms for surd on Thesaurus.com
adjective
  1. Phonetics. voiceless (opposed to sonant).

  2. Mathematics. (of a quantity) not capable of being expressed in rational numbers; irrational.

noun
  1. Phonetics. a voiceless consonant (opposed to sonant).

  2. Mathematics. a surd quantity.

Origin of surd

1
First recorded in 1545–55, surd is from the Latin word surdus dull-sounding, mute, deaf

Words Nearby surd

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How to use surd in a sentence

British Dictionary definitions for surd

surd

/ (sɜːd) /


noun
  1. maths an expression containing one or more irrational roots of numbers, such as 2√3 + 3√2 + 6

  2. phonetics a voiceless consonant, such as (t)

adjective
  1. of or relating to a surd

Origin of surd

1
C16: from Latin surdus muffled

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012