nitro group
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noun Chemistry.
the univalent group –NO2.
Origin of nitro group
First recorded in 1885–90
Also called nitro radical.
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for nitro group
Historical Examples of nitro group
The residue of nitric acid which replaces hydrogen in benzene is the nitro-group, and the compound is nitrobenzene.
CoalRaphael Meldola