a. Obs. [f. VITRIOL sb. + -OUS. Cf. OF. vitrioleux.] Of the nature of vitriol; vitriolic.
1646. Sir T. Browne, Pseud. Ep., III. xxii. 164. Some attrition from an acide and vitriolous humidity in the stomack. Ibid., VI. xii. 336. I say, a vitriolous or copperous quality; for vitrioll is the active or chiefe ingredient in Inke.
1707. Curios. in Husb. & Gard., 56. Vitriolous, nitrous, &c. Spirits.
