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Webster's New World College Dictionary » cysteine
cysteine
cysteine definition
cys·teine (sis′tē in, -tē ēn′)
noun
a nonessential amino acid, HSCHCH(NH)COOH, derived from cystine
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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