noun \tə-ˈlr-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

Seen & Heard

What made you want to look up tellurium? Please tell us where you read or heard it (including the quote, if possible).