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

To test this process, the researchers placed glycine inside the chamber and exposed it to simulated cosmic rays using an ion accelerator at HUN-REN Atomki.

From Science Daily ● Jan. 21, 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

As hypertensive pulmonary blood vessels metabolize glutamine and serine, they create two new amino acids, called proline and glycine.

From Science Daily ● May 2, 2024

The glycine clambered up the umbrella-shaped pines, and the wind blowing over the city brought the scent of the roses of the Palatine.

From Jean-Christophe Journey's End by Cannan, Gilbert