WordReference Random House Unabridged Dictionary of American English © 2025
te•trad•y•mite
(te trad′ə mīt′),USA pronunciation n.
- Mineralogya mineral, bismuth telluride and sulfide, Bi2Te2S, occurring in soft-gray to black foliated masses.
- Greek tetrádym(os) fourfold (see tetra-, didymous) + -ite1; modeled on German Tetradymit
- 1840–50