columbium

[ kuh-luhm-bee-uhm ]

noun

, Chemistry.

1. (formerly) niobium ( def ). : Cb

columbium

/ kəˈlʌmbɪəm /

noun

1. the former name of niobium

Word History and Origins

Origin of columbium¹

1801; Columb(ia) (a literary name for the United States of America) + -ium

Word History and Origins

Origin of columbium¹

C19: from New Latin, from Columbia, the United States of America

Example Sentences

Tantalum, tan′tal-um, n. a very rare metal of no practical importance, discovered in 1801, closely allied to columbium or niobium.

From Project Gutenberg

Chemically related to vanadium are the two elements tantalum and columbium or niobium.

From Project Gutenberg

These are platinum, gold, tungsten, mercury, lead, palladium, silver, bismuth, uranium, vanadium, copper, cadmium, cobalt, arsenic, nickel, iron, molybdenum, tin, zinc, antimony, tellurium, manganese, tatiaum, chromium, columbium, rhodium, iridium, osmium, cerium.

From Project Gutenberg

Thus C stands for carbon, Cl for chlorine, Cd for cadmium, Ce for cerium, Cb for columbium.

From Project Gutenberg