nitrate
1. ni.trate \'ni--.tra-t, -tr*t\ n [F, fr. nitrique] 1: a salt or ester of nitric acid 2: sodium nitrate or potassium nitrate used as a fertilizer 2. ni.trate \-.tra-t\ \ni--'tra--sh*n\ \'ni--.tra-t-*r\ vt : to treat or combine with nitric acid or a nitrate; esp : to con vert (an organic compound) into a nitro compound or a nitrate - ni.tra.tion n