copperas

About 0.05 uses per million words.

Meaning

1. noun Any of various metallic sulphates formed from the reaction of sulfur with iron, zinc, or copper, especially solutions of such compounds misunderstood as a mediator or catalyst for the transmutation of iron into copper &c.
2. noun Synonym of iron(II) sulfate.

Similar words

cement copper copper sulfate coppras ferrous sulfate ferric sulfate copperose blue vitriol cyanosite

Often followed by

and is creek in cove or hill solution works

Word family

copperases