Columbium meaning in Urdu & English |
English to Urdu Dictionary
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کولمبیم دھات ۔ ایک دھاتی عنصر ۔
English to English Dictionary
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(1) - 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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