tellurium

tel·lu·ri·um

noun \tə-ˈlu̇r-ē-əm, te-\

Definition of TELLURIUM

: a semimetallic element related to selenium and sulfur that occurs in a silvery white brittle crystalline form of metallic luster, in a dark amorphous form, or combined with metals and that is used especially in alloys—symbol Te; see element table