citrulline

noun

cit·​rul·​line ˈsi-trə-ˌlēn 

: a crystalline amino acid C₆H₁₃N₃O₃ formed especially as an intermediate in the conversion of ornithine to arginine

Examples of citrulline in a Sentence

Recent Examples on the Web

Relieves Muscle Soreness The citrulline in watermelon can boost nitric oxide production and reduce ammonia levels. —Lindsey Desoto, Rd, Ld, Verywell Health, 23 July 2024

Watermelon: Watermelon has high concentrations of citrulline, an amino acid that may enhance blood flow and lessen the risk of ED. —Amber Smith, Discover Magazine, 15 Jan. 2023

Each scoop provides the natural benefits of creatine, caffeine, citrulline, beta-alanine, and other must-have ingredients. —The Salt Lake Tribune, 28 Oct. 2022

The only components in the product are caffeine, beta-alanine, l-citrulline, and l-tyrosine. —Amber Smith, Discover Magazine, 17 Oct. 2022

However, Red Boost also contains L-citrulline, an amino acid linked to vasodilation and blood flow. —Jon Goodwin, Discover Magazine, 30 Dec. 2022

This supplement is made with a unique 2-in-1 formula that includes L-citrulline and longjack 100 to boost testosterone production while supporting balanced levels. —The Salt Lake Tribune, 8 Nov. 2022

It’s formulated with a blend of B vitamins, fenugreek, L-citrulline, zinc, ancient peat extract, boron, and eurycoma longifolia extract. —The Salt Lake Tribune, 8 Nov. 2022

Each serving is loaded with creatine, L-citrulline, niacin, and a blend of B-vitamins. —The Salt Lake Tribune, 28 Oct. 2022

Word History

Etymology

International Scientific Vocabulary, from New Latin Citrullus, genus name of the watermelon

First Known Use

1930, in the meaning defined above

Medical Definition

citrulline

noun

cit·​rul·​line ˈsi-trə-ˌlēn; si-ˈtrəl-ˌēn, -ən 

: a crystalline amino acid C₆H₁₃N₃O₃ formed especially as an intermediate in the conversion of ornithine to arginine in the living system