• synonyms


  1. containing the carbonyl group.
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  1. a compound containing metal combined with carbon monoxide, as nickel carbonyl, Ni(CO)4.
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Origin of carbonyl

First recorded in 1865–70; carbon + -yl
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for carbonyl

Historical Examples of carbonyl

British Dictionary definitions for carbonyl


noun chem
  1. (modifier) of, consisting of, or containing the divalent group =COa carbonyl group or radical
  2. any one of a class of inorganic complexes in which carbonyl groups are bound directly to metal atoms
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Derived Formscarbonylic (ˌkɑːbəˈnɪlɪk), adjective
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

carbonyl in Medicine


  1. The bivalent radical CO.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

carbonyl in Science


  1. The radical CO, found in a wide range of chemical compounds, especially in aldehydes and ketones.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.