DICT.TW Dictionary Taiwan
3.145.63.148

Search for:
[Show options]
[Pronunciation] [Help] [Database Info] [Server Info]

1 definition found

From: Webster's Revised Unabridged Dictionary (1913)

 Co·lum·bic a.  Chem. Pertaining to, or containing, columbium or niobium; niobic.
 Columbic acid Chem., a weak acid derived from columbic or niobic oxide, Nb2O5; -- called also niobic acid.