ornithine
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English[edit]
Etymology[edit]
(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium. Particularly: “ornitho- -ine?”)
Noun[edit]
ornithine (countable and uncountable, plural ornithines)
- (biochemistry, organic chemistry) An amino acid, 2,5-diaminopentanoic acid, that is not present in protein, but is an intermediate in the biosynthesis of urea.