Search Result for "cystine": 
Wordnet 3.0

NOUN (1)

1. a crystalline amino acid found in proteins (especially keratin); discovered in bladder stones;


The Collaborative International Dictionary of English v.0.48:

Cystine \Cyst"ine\ (s?s"t?n; 104), n. [See Cyst.] (Physiol. Chem.) A white crystalline substance, C3H7NSO2, containing sulphur, occuring as a constituent of certain rare urinary calculi, and occasionally found as a sediment in urine. [1913 Webster]
WordNet (r) 3.0 (2006):

cystine n 1: a crystalline amino acid found in proteins (especially keratin); discovered in bladder stones