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

from its discovery in bladder stones

First Known Use: 1843

Medical Dictionary

noun cys·tine \ˈsis-ˌtēn\

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

Next Word in the Dictionary: cystinuriaPrevious Word in the Dictionary: cystidiumAll Words Near: cystine

What made you want to look up cystine? Please tell us where you read or heard it (including the quote, if possible).

Put-downs with flair

How to use a word that (literally) drives some people nuts.

Test your vocab with our fun, fast game

Ailurophobia, and 9 other unusual fears