glycine

American  

[glahy-seen, glahy-seen] / ˈglaɪ sin, glaɪˈsin /

noun

Biochemistry.

1. a colorless, crystalline, sweet, water-soluble solid, H 2 NCH 2 COOH, the simplest amino acid: used chiefly in organic synthesis and biochemical research. Gly; G

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glycine British  

/ ɡlaɪˈsiːn, ˈɡlaɪsiːn /

noun

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

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glycine Scientific  

/ glī′sēn′,-sĭn /

1. A nonessential amino acid. Glycine is the simplest amino acid. Chemical formula: C ₂ H ₅ NO ₂ .

2. See more at amino acid

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Etymology

Origin of glycine

First recorded in 1850–55; glyc- + -ine ²

Example Sentences

See Examples For:

glycine

"Here at Penn State, we have modified instrumentation that allows us to make isotopic measurements on really low abundances of organic compounds like glycine," Baczynski said.

From Science Daily ● Feb. 12, 2026

The data indicate that its glycine may have formed not in warm liquid water, but in frozen ice exposed to radiation in the outer regions of the young solar system.

From Science Daily ● Feb. 12, 2026

For many years, the leading explanation for how glycine formed was a process known as Strecker synthesis.

From Science Daily ● Feb. 12, 2026

Katie decided to try magnesium glycinate - a combination of magnesium and glycine, an amino acid with limited evidence linking it to better sleep.

From BBC ● Oct. 24, 2025

We gathered the ripened seeds of several beautiful species of glycine from New Holland, which the governor of Cumana, Mr. Emparan, had successfully cultivated, and which grow wild on the coasts of South America.

From Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 by Thomasina Ross