[1] : The Collaborative International Dictionary of English v.0.48

taurine \tau"rine\, a. l. taurinus, fr. taurus a bull. see
   taurus. zool.
   of or pertaining to the genus taurus, or cattle.
   1913 webster
see also:
taurus 

[2] : The Collaborative International Dictionary of English v.0.48

taurine \tau"rine\, n. so named because it was discovered in
   the bile of the ox. see taurus. physiol. chem.
   a chemical compound occurring in small quantity in the juices
   of muscle, in the lungs, and elsewhere, but especially in the
   bile, where it is found as a component part of taurocholic
   acid, from which it can be prepared by decomposition of the
   acid. it crystallizes in colorless, regular six-sided prisms,
   and is especially characterized by containing both nitrogen
   and sulphur, being chemically amido-isethionic acid,
   c2h7nso3.
   1913 webster
see also:
taurus c2h7nso3 

[3] : WordNet (r) 2.0

taurine
     adj : of or relating to or resembling a bull
     n : a colorless crystalline substance obtained from the bile of
         mammals

Taurine >> T Words
Taurine, definition of term: Taurine
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