Dictionary

cystine

noun cys·tine \ˈsis-ˌtēn\

Definition of CYSTINE

:  a crystalline amino acid C6H12N2O4S2 that is widespread in proteins (as keratins) and is a major metabolic sulfur source
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Origin of CYSTINE

from its discovery in bladder stones
First Known Use: 1843
Medical Dictionary

cystine

noun cys·tine \ˈsis-ˌtēn\

Medical Definition of CYSTINE

:  an amino acid C6H12N2O4S2 that is a dimer of cysteine, is widespread in proteins (as keratins), and is a major metabolic sulfur source

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