noun
: an oxide of tantalum ; especially : the crystalline pentoxide Ta 2 O 5 obtained by igniting tantalum in air or oxygen and used in making optical glass and tantalum carbide
noun
: an oxide of tantalum ; especially : the crystalline pentoxide Ta 2 O 5 obtained by igniting tantalum in air or oxygen and used in making optical glass and tantalum carbide
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012