MEANING: noun: Cruel, mean-spirited, bitter criticism.

ETYMOLOGY: From Latin vitrum (glass). Sulfuric acid, a highly corrosive substance, was formerly known as oil of vitriol or simply vitriol. It was named vitriol owing to the glassy appearance of its salts. Earliest documented use: 1386.

VITRIO - 1. Brazilian health additive; 2. an 18-member musical group

EVITRIOL - Juan Peron cursing his wife

ZITRIOL - the active ingredient in your acne remedy