1 [tawr-ahyn, -in]
of, pertaining to, or resembling a bull.
pertaining to the zodiacal sign Taurus.

1605–15; < Latin taurīnus. See taur-, -ine1

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2 [tawr-een, -in]
noun Chemistry.
a neutral crystalline substance, C 2 H 7 NO 3 S, obtained from bile.

1835–45; taur(ocholic) + -ine2

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
taurine1 (ˈtɔːraɪn)
of, relating to, or resembling a bull
[C17: from Latin taurīnus, from taurus a bull]

taurine2 (ˈtɔːriːn, -rɪn)
a derivative of the amino acid, cysteine, obtained from the bile of animals; 2-aminoethanesulphonic acid. Formula: NH2CH2CH2SO3H
[C19: from tauro- (as in taurocholic acid, so called because discovered in ox bile) + -ine²]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

chemical substance (amido-ethyl-sulphonic acid), 1845, from L. taurus "bull" (see steer (n.)) + chemical suffix -ine; obtained by L. Gmelin in 1826 and so called because it was first found in ox bile.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

taurine tau·rine (tôr'ēn')
A colorless crystalline substance formed by the hydrolysis of taurocholic acid and found in the fluids of the muscles and lungs of many animals.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
They are all enriched with taurine because the taurine in meat is destroyed when it is cooked.
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