单词 | tetradymite |
释义 | tetradymite /te trad"euh muyt'/, n. a mineral, bismuth telluride and sulfide, Bi2Te2S, occurring in soft-gray to black foliated masses. [1840-50; < Gk tetrádym(os) fourfold (see TETRA-, DIDYMOUS) + -ITE1; modeled on G Tetradymit] |
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