nitrite Nitriot • nitro · · · Info · Definitions · Characters · · nitrite · · Text Latin · · Script 7 · · Length Definitions · · · (noun) the radical -NO2 or any compound containing it (such as a salt or ester of nitrous acid). · · Noun Definition 1 Characters · · e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E r latin small letter r U+0072 t latin small letter t U+0074