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Word of the Day Tuesday, June 9, 2026

arginine

/ˈɑːrdʒɪniːn/ noun · British & US
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What does arginine mean?

noun

An amino acid that is a precursor to nitric oxide and is involved in various bodily functions, including the synthesis of proteins and the regulation of blood flow.

Example

"The supplement contained arginine, which helped to improve blood flow to the muscles during exercise."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for arginine

Rhymes with arginine

Etymologically related