[ glahy-seen, glahy-seen ]

  1. a colorless, crystalline, sweet, water-soluble solid, H2NCH2COOH, the simplest amino acid: used chiefly in organic synthesis and biochemical research. Abbreviation: Gly; Symbol: G

Origin of glycine

First recorded in 1850–55; glyc- + -ine2
  • Also called aminoacetic acid, gly·co·coll [glahy-kuh-kol]. /ˈglaɪ kəˌkɒl/.

Words Nearby glycine Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use glycine in a sentence

British Dictionary definitions for glycine


/ (ˈɡlaɪsiːn, ɡlaɪˈsiːn) /

  1. a nonessential amino acid occurring in most proteins that acts as a neurotransmitter; aminoacetic acid

Origin of glycine

C19: glyco- + -ine ²

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for glycine


[ glīsēn′, -sĭn ]

  1. A nonessential amino acid. Glycine is the simplest amino acid. Chemical formula: C2H5NO2. See more at amino acid.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.