simple past tense and past participle of vitriol

A broad-tailed, moderate-sized parrot of the genus Platycercus native to northeastern Australia with a pale yellow head, predominantly white cheeks, scalloped black and gold back and pale blue unde...

(organic chemistry, especially in combination) A univalent radical formed by replacing a hydrogen atom of the amino group of taurine by a methylene group

plural of framing chisel