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

Each scoop delivers 10 grams of low molecular weight Type 3 and 1 collagen peptides with 18 amino acids including glycine, proline and hydroxyproline. — Lauren Jarvis-Gibson, Fort Worth Star-Telegram, 10 Aug. 2026

While lab and animal studies suggest that amino acids in gelatin, such as glycine, may help regulate inflammation and support the gut lining, there’s little evidence that eating gelatin provides these benefits in humans. — Abby Norman, Verywell Health, 28 July 2026

It’s made using three amino acids—arginine, glycine and methionine. — Jackie Flynn Mogensen, Scientific American, 7 July 2026

And Susie points to recent research that highlights how bone broth contains amino acids like glutamine, glycine, proline, histidine and arginine, which can collectively be helpful with immune function, tissue repair and muscle recovery. — Daryl Austin, USA Today, 6 June 2026

Word History

First Known Use

1851, in the meaning defined above

Rhymes for glycine

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

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