vitriol(various metal sulphates) noun [UK: ˈvɪ.trɪəl] [US: ˈvɪ.triəl]
vitriolonoun {m}Sulfuric acid was already known to medieval alchemists as oil of vitriol. = El ácido sulfúrico ya era conocido por los alquimistas de la edad media como aceite de vitriolo.