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arginine
noun
ar·gi·nine
ˈär-jə-ˌnēn
: a crystalline basic amino acid C6H14N4O2 derived from guanidine
Examples of arginine in a Sentence
Recent Examples on the Web
The formula uses a strengthening complex featuring amino acids, arginine, and citric acid to revive damaged hair and prevent future breakage.
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Kiana Murden, Vogue, 28 Dec. 2024
Key ingredients like arginine, soy protein, and lavender water work together to condition and strengthen brows, reduce breakage, and encourage steady growth over time.
—
Christa Joanna Lee, Allure, 19 Dec. 2024
There’s also a dose of arginine, an important amino acid that’s one of the key building blocks of collagen.
—
Justin Fenner, Robb Report, 19 Dec. 2024
Meanwhile, arginine increases blood flow to the hair follicles, which also stimulates growth.
—
Kiana Murden, Vogue, 18 Dec. 2024
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Word History
Etymology
German Arginin
First Known Use
1886, in the meaning defined above
Dictionary Entries Near arginine
Cite this Entry
“Arginine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/arginine. Accessed 6 Feb. 2025.
Kids Definition
arginine
noun
ar·gi·nine
ˈär-jə-ˌnēn
: an amino acid that is found in various proteins
Medical Definition
arginine
noun
ar·gi·nine
ˈär-jə-ˌnēn
: a crystalline basic amino acid C6H14N4O2 derived from guanidine
—abbreviation Arg
More from Merriam-Webster on arginine
Britannica.com: Encyclopedia article about arginine
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