surd

(sʉrd)

adjective

  1. Math. irrational
  2. Phonet. voiceless ()

Origin: L surdus, deaf, dull, mute: used to transl. Gr alogos, irrational, lit., without reason

noun

  1. Math. an irrational number or quantity; specif., a root which can be expressed only approximately: is a surd
  2. Phonet. a voiceless sound

See surd in American Heritage Dictionary 4

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

Origin:

Origin: Medieval Latin surdus, speechless, surd (translation of Arabic (jaḏr) ’aṣamm, deaf (root), surd, translation of Greek alogos, speechless, surd)

Origin: , from Latin

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