surd

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The problems have a surd or irrational element in them; and to solve them would be to bring reason into collision with itself Now, whatever may be the difficulties of establishing a theory of life, or a philosophy, it has never been shown to be an unreasonable task to attempt it.

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Definitions (16)

Toggle American Heritage definitions American Heritage Dictionary (3)

  1. noun Mathematics An irrational number, such as √2.
  2. noun Linguistics A voiceless sound in speech.
  3. adjective Linguistics Voiceless, as a sound.

Toggle Century definitions Century Dictionary (9)

Toggle GNU Webster definitions GNU Webster's 1913 (2)

Toggle WordNet definitions WordNet (2)

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Examples (49)

  • Despite the mystery, when it comes to gratuitous or surd evil I see no justifiable rationale. —  ExChristian.Net -- encouraging ex-Christians
  • Gus! tug a mean surd is smart upon my preference of an incommensurable value of [pi] to 3-1/5, or some such simple substitute. —  A Budget of Paradoxes, Volume I (of II)
  • The problems have a surd or irrational element in them; and to solve them would be to bring reason into collision with itself Now, whatever may be the difficulties of establishing a theory of life, or a philosophy, it has never been shown to be an unreasonable task to attempt it. —  Browning as a Philosophical and Religious Teacher
  • See a medial sh_, a sonant-surd Dakota letter), as ch in church as th in thin a medial ç, sonant-surd as th in the e, as in they e, an initially exploded e as in get an initially exploded g, as in go in Dakota), gh_. —  Siouan Sociology
  • See x in Osage), an h after a pure or nasalized vowel, expelled through the mouth with the lips wide apart in Dakota), kh_, etc. See q i, as in machine i, an initially exploded i as in pin j, as z in azure_, or as j in the French Jacques a medial k, a sonant-surd k’, an exploded k. See next letter in Dakota), an exploded k in Kansa), a medial m, a sound between m and b in Dakota), after a vowel has the sound of n in the French bon_. —  Siouan Sociology
 

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This word has been looked up 90 times.

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Etymologies (3)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. Medieval Latin surdus, speechless, surd (translation of Arabic (jaḏr) 'aṣamm, deaf (root), surd, translation of Greek alogos, speechless, surd), from Latin.

Toggle Century etymologies Century Dictionary (2)

  1. = French sourd = Provencal sord, sort = Portuguese surdo = Spanish Italian sordo, from Latin surdus, deaf.
  2. from surd, adjective
 

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/sərd/
by American Heritage

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