Synonyms of Columbium in English :
Antonyms of Columbium in English
Thesaurus of Columbium in English
Columbium
see definition of columbiumHypernyms of columbium
1. (noun) a former name for niobium
Synonyms of Columbium in English :
Antonyms of Columbium in English
Thesaurus of Columbium in English
1. (noun) a former name for niobium