D defs.my
Entry 1 sense Webster, 1913

Tellurium

/tĭlyo͝or'ēəm/ · Tel·lu·ri·um · IPA /tɪˈljʊəɹiəm/
01 n. A rare nonmetallic element, analogous to sulphur and selenium, occasionally found native as a substance of a silver-white metallic luster, …
  1. 1.
    A rare nonmetallic element, analogous to sulphur and selenium, occasionally found native as a substance of a silver-white metallic luster, but usually combined with metals, as with gold and silver in the mineral sylvanite, with mercury in Coloradoite, etc. Symbol Te. Atomic weight 125.2.(Chem.)
Phrases & compounds
Graphic tellurium — See Sylvanite.
Tellurium glance — nagyagite; -- called also black tellurium.