Definition of Columbium in English :
Define Columbium in English
Columbium meaning in English
Meaning of Columbium in English
Pronunciation of Columbium in English
Columbium pronunciation in English
Pronounce Columbium in English
Columbium
see synonyms of columbiumNoun
1. columbium
a former name for niobium
WordNet Lexical Database for English. Princeton University. 2010.
Columbium
see synonyms of columbiumnoun
the former name of niobium
Collins English Dictionary. Copyright © HarperCollins Publishers
Columbium
see synonyms of columbium noun
Obsolete
niobium
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.
Columbium
see synonyms of columbiumn.
Niobium. No longer in scientific use.
The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.