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n. - A grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals.

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Usage examples (37)
  • And some of them have to do with my age, so that when I was 72, I got this metal, hafnium, which is element 72.
  • There is no biological use or benefit for hafnium.
  • So storing energy in a hafnium isomer is one thing.
  • The majority of the hafnium imported comes from France.
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