Meaning of surd

surd

Pronunciation: (sûrd), [key]
— adj.
  1. voiceless (opposed to sonant).
  2. (of a quantity) not capable of being expressed in rational numbers; irrational.
—n.
  1. a voiceless consonant (opposed to sonant).
  2. a surd quantity.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: