atomic number 64 is a noun meaning "a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group". It carries one recorded sense.
a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group
Definitions, synonyms and semantic relations for atomic number 64 come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.