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Definition of columbium

The word columbium uses 9 letters: b, c, i, l, m, m, o, u, u

columbium is playable in:

Words With Friends24
Scrabble US17
Scrabble UK17

Meanings of columbium

n. - A rare element of the vanadium group, first found in a variety of the mineral columbite occurring in Connecticut, probably at Haddam. Atomic weight 94.2. Symbol Cb or Nb. Now more commonly called niobium.

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