ornithine

[ awr-nuh-theen ]

/ ˈɔr nəˌθin /

noun Biochemistry.

an amino acid, H2N(CH2)3CH(NH2)COOH, obtained by the hydrolysis of arginine and occurring as an intermediate compound in the urea cycle of mammals.

Origin of ornithine

1880–85; ornith(uric acid), secreted by birds + -ine²

Words nearby ornithine

Orne, ornery, ornis, ornith-, ornithic, ornithine, ornithinuria, ornithischian, ornitho-, Ornithodoros, ornithoid

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for ornithine

ornithine

/ (ˈɔːnɪˌθiːn) /

noun

an amino acid produced from arginine by hydrolysis: involved in the formation of urea in the liver; diaminopentanoic acid. Formula: NH 2 (CH 2) 3 CHNH 2 COOH

Word Origin for ornithine

C19: from ornithuric (acid) secreted in the urine of birds, from ornitho- + uric

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for ornithine

ornithine

[ ôr′nə-thēn′ ]

n.

An amino acid formed by the hydrolysis of arginine and important in the formation of urea.

Scientific definitions for ornithine

ornithine

[ ôr′nə-thēn′ ]

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

单词	ornithine
释义	ornithine [ awr-nuh-theen ] / ˈɔr nəˌθin / noun Biochemistry. an amino acid, H2N(CH2)3CH(NH2)COOH, obtained by the hydrolysis of arginine and occurring as an intermediate compound in the urea cycle of mammals. Origin of ornithine 1880–85; ornith(uric acid), secreted by birds + -ine² Words nearby ornithine Orne, ornery, ornis, ornith-, ornithic, ornithine, ornithinuria, ornithischian, ornitho-, Ornithodoros, ornithoid Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for ornithine ornithine / (ˈɔːnɪˌθiːn) / noun an amino acid produced from arginine by hydrolysis: involved in the formation of urea in the liver; diaminopentanoic acid. Formula: NH 2 (CH 2) 3 CHNH 2 COOH Word Origin for ornithine C19: from ornithuric (acid) secreted in the urine of birds, from ornitho- + uric Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for ornithine ornithine [ ôr′nə-thēn′ ] n. An amino acid formed by the hydrolysis of arginine and important in the formation of urea. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for ornithine ornithine [ ôr′nə-thēn′ ] An amino acid not found in proteins, formed by hydrolyzing arginine and important in the formation of urea. Chemical formula: C5H12N2O2. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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