COLUMBIUM as NOUN

1. Meaning
   • a former name for niobium
   Hypernyms(s) columbium is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • niobium (what does niobium mean?)
   • Nb (what does Nb mean?)
   • atomic number 41 (what does atomic number 41 mean?)