Cystine

2 definitions found

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

  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]



From WordNet (r) 2.0 [wn]:

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