[kuh-luhm-bee-uh m]

noun Chemistry.

(formerly) niobium.Symbol: Cb

Origin of columbium

1801; Columb(ia) (a literary name for the United States of America) + -ium Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for columbium

Historical Examples of columbium

British Dictionary definitions for columbium



the former name of niobium

Word Origin for columbium

C19: from New Latin, from Columbia, the United States of America
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012