platinum arsenide
(zoology) Any ammonite in the family Tropitidae.
A county of Alabama, United States. County seat: Russellville. / A county of Arkansas, United States. County seats: Charleston and Ozark. / A county of Florida, United States. County seat: Apalachi...
(chemistry) An opaque white mineral, PtAs₂.
To behave like a despot.
研究者たちは隕石試料から新しい白金ヒ素化物（PtAs₂）の脈を確認した。
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