单词 | realgar |
释义 | re·al·gar (rē-ălgär′, -gər) n. A soft orange-red arsenic ore, As2S2, used in pyrotechnics and tanning and as a pigment. [Middle English, from Medieval Latin, from Catalan, from Arabic rahj al-ġār, powder (of) the mine or cave : rahj, powder + al-, the + ġār, cave; see ġrr in the Appendix of Semitic roots.] |
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