surd
1. surd \'s*rd\ aj [L surdus deaf, silent, stupid; akin to L susurrus hum - more at]SWARM 1: IRRATIONAL 2: VOICELESS - used of speech sounds 2. surd n 1a: an irrational root (as <radical>3) 1b: IRRATIONAL 2: a surd speech sound
Webster's English Dictionary1. surd \'s*rd\ aj [L surdus deaf, silent, stupid; akin to L susurrus hum - more at]SWARM 1: IRRATIONAL 2: VOICELESS - used of speech sounds 2. surd n 1a: an irrational root (as <radical>3) 1b: IRRATIONAL 2: a surd speech sound