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Definition of Dy
1. Noun. A trivalent metallic element of the rare earth group; forms compounds that are highly magnetic.
Medical Definition of Dy
1. Symbol for dysprosium. (05 Mar 2000)
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1. Noun. A trivalent metallic element of the rare earth group; forms compounds that are highly magnetic.
1. Symbol for dysprosium. (05 Mar 2000)