surd

views updated

surd / sərd/ • adj. 1. Math. (of a number) irrational.2. Phonet. (of a speech sound) uttered with the breath and not the voice (e.g., f, k, p, s, t).• n. 1. Math. a surd number, esp. the irrational root of an integer.2. Phonet. a surd consonant.