- the univalent group –NO2.
Origin of nitro group
First recorded in 1885–90
Also called nitro radical.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for nitro group
The residue of nitric acid which replaces hydrogen in benzene is the nitro-group, and the compound is nitrobenzene.Coal