glycine

noun

gly·​cine ˈglī-ˌsēn  ˈglī-sᵊn 

: a sweet crystalline amino acid C₂H₅NO₂ obtained especially by hydrolysis of proteins

Examples of glycine in a Sentence

Recent Examples on the Web

Eggs themselves are not a source of collagen—but the egg white specifically contains proline and glycine, two essential amino acids for proper collagen production. —Alessandra Signorelli, Vogue, 1 July 2025

Individually, glycine and magnesium contribute to sleep. —Amy Brownstein, Ms, Rdn, Verywell Health, 13 Jan. 2025

Spot On! Advertisement Advertisement There are also 11 non-essential amino acids—alanine, arginine, asparagine, aspartic acid, cysteine, glutamic acid, glutamine, glycine, proline, serine, and tyrosine—that can be produced by your body. —Stacey Colino, Time, 27 May 2025

Routinely consuming glycine could potentially help reduce fatigue overall.7 4. —Cristina Mutchler, Verywell Health, 28 May 2025

Word History

First Known Use

1851, in the meaning defined above

Rhymes for glycine

• agin
• alkene
• allene
• ameen
• amin
• amine
• arene
• athene
• baleen
• beeline
• benzene
• between

Medical Definition

glycine

noun

gly·​cine ˈglī-ˌsēn  ˈglīs-ᵊn 

: a sweet crystalline nonessential amino acid C₂H₅NO₂ that is a neurotransmitter which induces inhibition of postsynaptic neurons, is obtained by hydrolysis of proteins or is prepared synthetically, and is used in the form of its salt as an antacid or in aqueous solution as an irrigating fluid in transurethral surgery

—abbreviation Gly

called also aminoacetic acid, glycocoll