add. ·noun to vitriolize.
2. vitriol ·add. ·noun to dip in dilute sulphuric acid; to pickle.
3. vitriol ·noun a sulphate of any one of certain metals, as copper, iron, zinc, cobalt. so called on account of the glassy appearance or luster.
4. vitriol ·noun sulphuric acid;
called also oil of vitriol. so called because first made by the distillation of green vitriol. ·see sulphuric acid, under sulphuric.