NITER Meaning of NITER in English /nuy"teuhr/ , n.1. See potassium nitrate . 2. See sodium nitrate . Also, esp. Brit., nitre . [ 1375-1425; late ME nitre nitrum nítron NATRON ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012