a bright orange-red, monoclinic mineral, AsS, used in fireworks, paints, etc.; arsenic sulfide
Origin of realgarMiddle English from ML, ultimately from Arabic rahj al-gh?r, literally , dust of the cave from rahj, dust + al, the + gh?r, cave, mine: origin, originally obtained by mining
A soft orange-red arsenic ore, As2S2, used in pyrotechnics and tanning and as a pigment.
Origin of realgarMiddle English from Medieval Latin from Catalan from Arabic rahj al-ġār powder (of) the mine or cave rahj powder al- the ġār cave ġrr
(usually uncountable, plural realgars)