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ornithine

ornithine (Orn) An amino acid, H2N(CH2)3CH(NH2)COOH, that is not a constituent of proteins but is important in living organisms as an intermediate in the reactions of the urea cycle and in arginine synthesis.

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ornithine

ornithine An amino acid that occurs as a metabolic intermediate in the synthesis of urea, but not involved in protein synthesis, so of no nutritional importance.

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ornithine

ornithine A non-protein amino acid which, in the liver of vertebrates, contributes to the conversion of ammonia and carbon dioxide into urea.

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ornithine

ornithine (or-ni-theen) n. an amino acid produced in the liver as a by-product during the conversion of ammonia to urea.

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"ornithine." A Dictionary of Nursing. . Encyclopedia.com. 22 Sep. 2018 <http://www.encyclopedia.com>.

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