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[ok-seem, -sim] /ˈɒk sim, -sɪm/
noun, Chemistry
any of a group of compounds containing the group >C=NOH, produced by the condensation of ketones or aldehydes with hydroxylamine.
1890-95; ox(ygen) + im(id)e Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for oxime
  • Information on phosgene oxime, a potential agent for chemical terrorism.
  • Phosgene oxime was developed as a chemical warfare agent.
  • Only people working near where phosgene oxime has been stored are at risk of being exposed to this substance.
British Dictionary definitions for oxime


any of a class of compounds with the general formula RR′NOH, where R is an organic group and R′ is either an organic group (ketoxime) or hydrogen atom (aldoxime): used in the chemical analysis of carbonyl compounds
Word Origin
C19: from ox(ygen) + im(id)e
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
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oxime in Medicine

oxime ox·ime (ŏk'sēm)
Any of a group of compounds formed by treating aldehydes or ketones with a nitrogen-containing reducing agent.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for oxime

any of a class of nitrogen-containing organic compounds usually prepared from hydroxylamine and an aldehyde, a ketone, or a quinone. Oximes have the structure X\Y/C NOH, in which X and Y are hydrogen atoms or organic groups derived by removal of a hydrogen atom from an organic compound. Because most oximes are solids with characteristic melting points, they are useful in identifying liquid aldehydes and ketones.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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