单词 niobic 释义 niobic, a. Chem.|nabk|[f. niob-ium + -ic 1 b.]Of or pertaining to, derived from, niobium; esp. in niobic acid or niobic oxide.1845H. Rose in Chem. Gaz. III. 36, I have called it Niobium, and its acid niobic acid.Ibid., The niobic acid re...