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1. (n.) realgar
an orange-red mineral, arsenic sulfide, AsS, found in granular and crusty masses and also produced artificially for use in pyrotechnics.
Etymology: (1350–1400; ME < ML realger&indirdesc; Ar rahj al-ghār powder of the mine or cave)
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| Definition of 'realgar' |
Princeton's WordNet |
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1. (noun) realgar
a rare soft orange mineral consisting of arsenic sulphide; an important ore of arsenic
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| Definition of 'realgar' |
Webster Dictionary |
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1. (noun) realgar
arsenic sulphide, a mineral of a brilliant red color; red orpiment. It is also an artificial product
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Definitions of realgar 
