noun. A soft, silvery metallic rare-earth element occurring in monazite and bastnaesite used in nuclear reactor control rods and in the manufacture of laser materials and compact discs. Atomic number 66; atomic weight 162.50; melting point 1,412°C; boiling point 2,567°C; specific gravity 8.551; valence 3. cross-reference: Periodic Table.

noun. In chem., one of the supposedly distinct elements of the yttrium group contained in samarskite and gadolinite, closely related to holmium, but distinguished from it by a special absorption-spectrum.

noun. An element of the rare earth-group. Symbol Dy; at. wt., 162.5.

noun. A metallic chemical element (symbol Dy) with an atomic number of 66.

noun. a trivalent metallic element of the rare earth group; forms compounds that are highly magnetic

"A material known as dysprosium, used in magnets for wind turbines and electric vehicles, is particularly important to the clean-technology sector."

dysprosia  

dysprosium oxide  dysprosium trichloride  

metal  metallic element