surd

(from the article `Incommensurables`) ...essentially mathematical and based on whole numbers. Of special relevance was the manipulation of ratios, which at first took place in accordance ...
Found on http://www.britannica.com/eb/a-z/s/189

surd

[adj] - (linguistics) of speech sounds 2. [n] - a consonant produced without sound from the vocal cords
Found on http://www.webdictionary.co.uk/definition.php?query=surd

Surd

• (a.) Unheard. • (a.) Net having the sense of hearing; deaf. • (a.) Involving surds; not capable of being expressed in rational numbers; radical; irrational; as, a surd expression or quantity; a surd number. • (n.) A surd element of speech. See Surd, a., 4. • (a.) Uttered, as an element of speech, without tone, or proper v...
Found on http://thinkexist.com/dictionary/meaning/surd/

surd

voiceless consonant noun a consonant produced without sound from the vocal cords
Found on https://www.encyclo.co.uk/local/20974

Surd

Surd adjective [ Latin surdus deaf (whence the meaning, deaf to reason, irrational), perhaps akin to English swart . Confer Sordine .] 1. Net having the sense of hearing; deaf. [ Obsolete] 'A surd . . . generation.' Sir T. Browne. 2. Unheard. [ Obso...
Found on http://www.encyclo.co.uk/webster/S/249

Surd

Surd noun (Math.) 1. A quantity which can not be expressed by rational numbers; thus, √2 is a surd . 2. (Phon.) A surd element of speech. See Surd , adjective , 4.
Found on http://www.encyclo.co.uk/webster/S/249

surd

1. Net having the sense of hearing; deaf. 'A surd . . . Generation.' ... 2. Unheard. ... 3. <mathematics> Involving surds; not capable of being expressed in rational numbers; radical; irrational; as, a surd expression or quantity; a surd number. ... 4. Uttered, as an element of speech, without tone, or proper vocal sound; voiceless; unintonat...
Found on http://www.encyclo.co.uk/local/20973

surd

a large surdo. Also called surdo terremoto ("earthquake") or surdo treme terra ("earth tremors").
Found on http://www.carnaval.com/bahia/glossary/

surd

deaf; senseless
Found on http://phrontistery.info/s.html

surd

In mathematics, expression containing the root of an irrational number that can never be exactly expressed – for example, √3 = 1.732050808... . √3 can be expressed in index notation as 31/2 or 3 to the power half. Simplifying surds (roots) Expressions involving surds can be factorized numerically to s...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0006743.html

surd

irrational number
Found on http://phrontistery.info/s.html

Surd

Surd is an algebraic term to describe a quantity not expressible in rational numbers, such as the cube root of 3.
Found on http://www.probertencyclopaedia.com/browse/AS.HTM

Surd

Used in mathematics to describe an irrational quantity. See also: Irrational Number.
Found on http://www.diracdelta.co.uk/science/source/s/u/surd/source.html
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