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n. Mathematics An irrational number, such as √2.

n. Linguistics A voiceless sound in speech.

adj. Linguistics Voiceless, as a sound.

n. An irrational number, especially one expressed using the √ symbol.

n. A voiceless consonant.

adj. Net having the sense of hearing; deaf.

adj. Unheard.

adj. Involving surds; not capable of being expressed in rational numbers; radical; irrational.

adj. Uttered, as an element of speech, without tone, or proper vocal sound; voiceless; unintonated; nonvocal; atonic; whispered; aspirated; sharp; hard, as f, p, s, etc.; -- opposed to sonant. See Guide to Pronunciation, §§169, 179, 180.

n. A quantity which can not be expressed by rational numbers.

n. A surd element of speech. See Surd, a., 4.

Not having the sense of hearing; deaf.

That cannot be discriminated by the ear (?).

In mathematics, not capable of being expressed in rational numbers: as, a surd expression, quantity, or number. See II., 1.

In phonetics, uttered with breath and not with voice; devoid of vocality; not sonant: toneless: specifically applied to the breathed or non-vocal consonants of the alphabet. See II., 2.

Meaningless; senseless.

n. In mathematics, a quantity not expressible as the ratio of two whole numbers, as √ 2, or the ratio of the circumference of a circle to the diameter.

n. In phonetics, a consonantal sound uttered with breath and not with voice; a non-sonant consonant; a non-vocal alphabetic utterance, as p, f, s, t, k, as opposed to b, v, z, d, g, which are sonants or vocals.

To render dim or soft; mute.

Containing or involving a surd : thus [1 + ½] ½ is a surd expression but not a surd, since 1 + ½ is not a rational expression.

n. In mathematics: An indicated root whose value is irrational, but whose radicand is rational, as ½. A surd is quadratic, cubic, of order n, according as its exponent is ½, ⅓, 1/n;.

n. a consonant produced without sound from the vocal cords

adj. produced without vibration of the vocal cords

"Jeremy Piven winning an Emmy three years in a row for that role, is up surd."

whispered   

consonant   

similar surds    heterogeneous surds   

deaf    unheard    radical    irrational    voiceless    unintonated    nonvocal    atonic    whispered    aspirated   

ameriplan    ðq    incepto    sorption    oard    optometry    u    water-sprite    saeclorum    intestato