phenylalanine Hear it!

phenylalanine definition

phenyl·ala·nine (fen′əl al′ə nēn′, fē′nəl-)

noun

an essential amino acid, CHCHCH(NH)COOH, occurring in proteins

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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