Why was clemency trending last week?
abbreviation of nitroglycerine, 1935, slang.
before vowels nitr-, word-forming element used scientifically and indicating "nitrogen, nitrate" or "nitric acid," from comb. form of Greek nitron (see nitre).
nitro- or nitr-pref.
Nitrate; nitrogen: nitrogenase.
Containing the univalent radical NO2: nitrous.