† vitrioˈlescent, a. Obs.—1
[f. vitriol n. + -escent.]
Passing into a vitriolated state. Hence vitrioˈlescence.
| 1757 tr. Henckel's Pyritol. 60 Dissolved, crumbled, vitriolescent copper-pyrites. Ibid. 296 The spontaneous vitriolescence of pyrites. |