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Columba
columbarium
Columbia
Columbia Heights
Columbia Plateau
Columbian
columbine (1)
columbine (2)
columbite
columbium
Columbus
Columbus Day
columella
column
column inch
columnar jointing
columnea
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columbite
co·lum·bite [ kə lúm bt ]


noun 
Definition:
 
ore of niobium: a black, reddish brown, or transparent mixed oxide mineral containing niobium, iron, and manganese. Use: source of niobium.
[Early 19th century. <columbium]
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