From Wikipedia, the free encyclopedia
Athanor (-is / indecl. m.)[1] (a nomine Arabico التَنُّور at-tannūr, i.e. fornax) est fornax alchemica, e terra aut lateribus constructa, quae adhibetur ad substantias diu calore constanti calefaciendas. Quamobrem etiam 'Piger Henricus' appellatur.
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