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1. The bivalent group C═O.
2. A metal compound, such as Ni(CO)4, containing the CO group.

car′bon·yl′ic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈkɑːbəˌnaɪl; -nɪl)
1. (Elements & Compounds) (modifier) of, consisting of, or containing the divalent group =CO: a carbonyl group or radical.
2. (Elements & Compounds) any one of a class of inorganic complexes in which carbonyl groups are bound directly to metal atoms
carbonylic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈkɑr bə nɪl)
a compound containing metal combined with carbon monoxide, as nickel carbonyl, Ni(CO)4.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.carbonyl - a compound containing metal combined with carbon monoxide
carbonyl group - the bivalent radical CO
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
Adj.1.carbonyl - relating to or containing the carbonyl group
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Components of secondary importance to aroma included the carbonyl fractions, followed by alcohols, hydrocarbons and elemicin.
The N-H stretching region in FTIR spectra is too complicated to be analyzed for the PUU films, and so the region at 1600-1750 [cm.sup.-] corresponding to the carbonyl stretching vibration was used to examine the hydrogen bonding of PUUs.
The authors report that, in A431 skin carcinoma cells, zinc increased [H.sub.2][O.sub.2] production, which could be significantly inhibited with the mitochondrial inhibitor carbonyl cyanide 3-chlorophenyl hydrazone.
He introduces the basic concepts of light and matter to begin, then explains light adsorption and electronically-excited states, the physical deactivation of excited states, radiative processes of excited states, intramolecular radiationless transitions of excited states, intermolecular physical processes of excited states, some aspects of the chemical properties of excited states, the photochemistry of alkenes and carbonyl compounds, some aspects of photochemical reaction mechanisms, semiconductor photochemistry, and an introduction to supramolecular photochemistry.
These two peaks corresponded to carbonyl group and formation of double bonds as a result of breakdown of polymer chain.
It is a remarkably simple process that includes only two components: the carbonyl compound and formamide.
Commonly, Compounds containing double bonds (alkenes) can be oxidatively cleaved into carbonyl fragments by reagents such as ozone, which attack ethylenic linkages.
Thomas Rauchfuss, professor from the University of Illinois, presented a plenary lecture titled, "Iron Carbonyl Comes to Life--inorganic chemistry and the hydrogenase enzymes." University of Toronto's Geoffrey Ozin, FCIC, spoke about "P-Ink and Elast-Ink Labto-Market." The social program included mixers and a banquet attended by 230.
In exercise trials carried out by HortResearch, Vinanza Gold was shown to reduce protein carbonyl concentration production by 37 per cent in the treatment group, suggesting that Vinanza Gold can deliver an extremely large effect on oxidative stress.
Their topics include hydrogen storage as a solution for a changing energy landscape, hydrogen storage based on carbon dioxide: formic acid dehydrogenation, hydrogenating carbonyl compounds of relevance to hydrogen storage in alcohols, dehydrogenating alcohols and polyols from a hydrogen production perspective, and homogeneously catalyzed hydrogenation and dehydrogenation reactions: a mechanistic point of view.