noun Etymology: Middle English, from Anglo-French ~e, from Medieval Latin ~um, alteration of Late Latin vitreolum, neuter of vitreolus glassy, from Latin vitreus vitreous Date: 14th century 1. a sulfate of any of various metals (as copper, iron, or zinc), oil of ~ , something felt to resemble ~ especially in caustic quality, ~ic adjective
VITRIOL
Meaning of VITRIOL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012