də̇ˈsprōzēəm noun
( -s )
Etymology: New Latin, from Greek dysprositos hard to get at (from dys- + prositos approachable) + New Latin -ium
: a trivalent metallic element of the rare-earth group that forms compounds which are among the most highly magnetic known, and of which the oxide is white and the salts yellowish — symbol Dy ; see element table