Definition of carbonyl
1 : an organic functional group or radical −CO− occurring in aldehydes, ketones, carboxylic acids, esters, and their derivatives
2 : a coordination complex involving the neutral radical CO chromium carbonyl
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
Ask the Editors
Ending a Sentence with a Preposition
An old-fashioned rule we can no longer put up with.
'All Intensive Purposes' or 'All Intents and Purposes'?
We're intent on clearing it up
'Mispronunciations' That May Be Fine
'Mischievous,' 'nuclear,' and other words to pron...
Why Did Yankee Doodle Call a Feather 'Macaroni'?
What's with his feathered cap?