gly·​cine | \ ˈglī-ˌsēn How to pronounce glycine (audio) , ˈglī-sᵊn \

Definition of glycine

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

Examples of glycine in a Sentence

Recent Examples on the Web The scientists then tested the effects of a serine- and glycine-free diet in mice. Jocelyn Kaiser, Science | AAAS, 1 Apr. 2021 Cells need serine or glycine to make a compound that sops up DNA-damaging free radicals, and the deprivation made tumor cells more sensitive to that oxidative stress. Jocelyn Kaiser, Science | AAAS, 1 Apr. 2021 When analyzed, the yellow water was found to contain glycine, the simplest amino acid and an important building block of life. Tim Flannery, The New York Review of Books, 17 Nov. 2020 Persian silk tree bark extract helps reduce the appearance of dark circles and puffiness, palmitoyl glycine helps reduce the appearance of fine lines and wild indigo extract helps brighten my undereyes, leaving behind a luminous skin-like finish. Nicole Saunders, NBC News, 21 Oct. 2020 The Persian silk tree bark extract can help reduce the look of puffiness, dark circles and crows feet, with palmitoyl glycine helping fade the appearance of lines and wrinkles. Nicole Saunders, CNN Underscored, 26 Dec. 2019 In 2013, however, chemical biologist Kevan Shokat’s lab at the University of California, San Francisco, identified a small molecule that could slip into a groove on a KRAS mutant called G12C (for a glycine mutated to a cysteine at position 12). Jocelyn Kaiser, Science | AAAS, 30 Oct. 2019 The supplements specifically contain high amounts of three amino acids that are key building blocks for collagen synthesis in the body: glycine, proline and hydroxyproline. Lisa Drayer, CNN, 17 Oct. 2019 Consuming collagen is a particularly great way to get more conditional amino acids, like arginine, glutamine, glycine and proline. Better Health Market, Detroit Free Press, 30 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'glycine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of glycine

1851, in the meaning defined above

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The first known use of glycine was in 1851

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Cite this Entry

“Glycine.” Dictionary, Merriam-Webster, Accessed 20 Sep. 2021.

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More Definitions for glycine


gly·​cine | \ ˈglī-ˌsēn How to pronounce glycine (audio) , ˈglīs-ᵊn How to pronounce glycine (audio) \

Medical Definition of glycine

: 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

More from Merriam-Webster on glycine Encyclopedia article about glycine


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