[ kahr-buh-nil ]
/ ˈkɑr bə nɪl /


containing the carbonyl group.


a compound containing metal combined with carbon monoxide, as nickel carbonyl, Ni(CO)4.

Origin of carbonyl

First recorded in 1865–70; carbon + -yl Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for carbonyl

British Dictionary definitions for carbonyl


/ (ˈkɑːbəˌnaɪl, -nɪl) /

noun chem

(modifier) of, consisting of, or containing the divalent group =COa carbonyl group or radical
any one of a class of inorganic complexes in which carbonyl groups are bound directly to metal atoms

Derived Forms

carbonylic (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

Medicine definitions for carbonyl


[ kärbə-nĭl′ ]


The bivalent radical CO.

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

Science definitions for carbonyl


[ kärbə-nĭl′ ]

The radical CO, found in a wide range of chemical compounds, especially in aldehydes and ketones.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.