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Columbium - definition of columbium by The Free Dictionary Define columbium. columbium synonyms, columbium pronunciation, columbium translation, English dictionary definition of columbium. n. Niobium. No longer in scientific ... EcologyNews News portal on global ecology, environmental weapons, and environmental war Wednesday, January 20, 2016. Edition. by . PEOPLES DAILY, WEDNESday, january 20, 2016. PAGE 2. News CONTENTS News 2-10 Editorial 111 Op.Ed 13 Letters 14 Politics 15-18 Business 19-22. Stockwatch    Read More