noun
: a gelatinous hydrated form Nb 2 O 5 . n H 2 0 of niobium pentoxide that reacts with alkalies to yield salts (as sodium niobate NaNb0 3 ) — called also columbic acid
noun
: a gelatinous hydrated form Nb 2 O 5 . n H 2 0 of niobium pentoxide that reacts with alkalies to yield salts (as sodium niobate NaNb0 3 ) — called also columbic acid
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012