The following 4 entries include the term nitric.
: a corrosive liquid inorganic acid HNO3 used especially as an oxidizing agent, in nitrations, and in making organic compounds (such as fertilizers, explosives, and dyes)
: a colorless poisonous gas NO formed by oxidation of nitrogen or ammonia that is present in the atmosphere and also in mammals where it is synthesized from arginine and oxygen and acts as a vasodilator and as a mediator of cell-to-cell communication (as between nerve cells) — compare nitrous oxide
fuming nitric acidnoun
: concentrated nitric acid containing dissolved nitrogen oxides prepared as either a colorless to pale yellow or a red to brown corrosive poisonous liquid and used especially as a nitrating agent and as a powerful oxidizing agent (as in rocket propellants)