realgar
definitions
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noun
Arsenic sulfide mineral, red in color, used historically in medicine and alchemy.es: Realgar, un mineral de azufre de arsénico.
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noun
A red pigment derived from realgar mineral.es: Un pigmento rojo derivado del mineral realgar.
examples
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The alchemist used realgar in his potions.
El alquimista usó realgar en sus pociones.
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They mixed realgar into the paint.
Mezclaron realgar en la pintura.