arginine
noun
ar·gi·nine ˈär-jə-ˌnēn 
: a crystalline basic amino acid C6H14N4O2 derived from guanidine
Example Sentences
Recent Examples on the Web This buzzy formula, which is packed with a conditioning complex of arginine and pro-vitamin B5, promises to push your natural lashes to their fullest potential (i.e. thicker, longer, fuller) in as little as four weeks. 
Jennifer Chan, Peoplemag, 12 Aug. 2022 Regina King, Hunter Schafer and Rachel Brosnahan are all fans of this super-hydrating serum formulated with arginine to create fuller-looking lashes and brows. Ingrid Schmidt, The Hollywood Reporter, 26 July 2022 The product has a hypoallergenic and dermatologist-tested lightweight formula and also features hyaluronic acid and arginine, an antioxidant-rich amino acid. Nicol Natale, PEOPLE.com, 26 June 2022 Citric acid extracts like peach, lime, lemon, grapefruit and arginine work to clarify and brighten your complexion. Grooming Playbook, The Salt Lake Tribune, 26 May 2022 The substitution of arginine (R) for isoleucine (I) is a change from positive charge to neutral charge. William A. Haseltine, Forbes, 16 Sep. 2021 Some of the nutrients in meat such as carnitine, L-arginine, and zinc may help with blood flow. Bruce Y. Lee, Forbes, 13 Mar. 2022 This insertion added the peptide GLTSKRN (glycine-leucine-threonine-serine-lysine-arginine-asparagine) between Spike protein positions 214 and 215. William A. Haseltine, Forbes, 28 Sep. 2021 Cosmetic chemist Ginger King explains arginine is an amino acid that helps to nourish lashes and panthenol, an active also known as provitamin B5, is the same ingredient found in Pantene products to strengthen hair and, in this case, lashes. Sarah Han, Allure, 3 Aug. 2021 See More
Jennifer Chan, Peoplemag, 12 Aug. 2022 Regina King, Hunter Schafer and Rachel Brosnahan are all fans of this super-hydrating serum formulated with arginine to create fuller-looking lashes and brows. Ingrid Schmidt, The Hollywood Reporter, 26 July 2022 The product has a hypoallergenic and dermatologist-tested lightweight formula and also features hyaluronic acid and arginine, an antioxidant-rich amino acid. Nicol Natale, PEOPLE.com, 26 June 2022 Citric acid extracts like peach, lime, lemon, grapefruit and arginine work to clarify and brighten your complexion. Grooming Playbook, The Salt Lake Tribune, 26 May 2022 The substitution of arginine (R) for isoleucine (I) is a change from positive charge to neutral charge. William A. Haseltine, Forbes, 16 Sep. 2021 Some of the nutrients in meat such as carnitine, L-arginine, and zinc may help with blood flow. Bruce Y. Lee, Forbes, 13 Mar. 2022 This insertion added the peptide GLTSKRN (glycine-leucine-threonine-serine-lysine-arginine-asparagine) between Spike protein positions 214 and 215. William A. Haseltine, Forbes, 28 Sep. 2021 Cosmetic chemist Ginger King explains arginine is an amino acid that helps to nourish lashes and panthenol, an active also known as provitamin B5, is the same ingredient found in Pantene products to strengthen hair and, in this case, lashes. Sarah Han, Allure, 3 Aug. 2021 See More Word History
Etymology
German Arginin
First Known Use
1886, in the meaning defined above
Medical Definition
arginine
noun
ar·gi·nine ˈär-jə-ˌnēn
: a crystalline basic amino acid C6H14N4O2 derived from guanidine —abbreviation Arg