ornithine

(ôrnə t̸hēn′, -t̸hin)

noun

a nonessential amino acid, NH(CH)CH(NH)COOH, found in animals as a product of urea formation from proteins and in the excrement of birds

Origin: < Gr ornis, bird (see ornitho-) + -ine

See ornithine in American Heritage Dictionary 4

noun
An amino acid, C5H12N2O2, not found in proteins, formed by hydrolyzing arginine and important in the formation of urea.

Origin:

Origin: ornith(uric acid), an acid found in birds' urine (ornith(o)- + uric acid)

Origin: + -ine2

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