methionine Hear it!

methionine definition

me·thio·nine (mə t̸hī′ə nēn′, -nin)

noun

an essential amino acid, CHSCHCHCH(NH)COOH, that contains sulfur, obtained from various proteins and used as a food supplement and in medicine

Etymology: me(thyl) + thion(ic) + -ine

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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