copperas

Definitions


[ˈkɒp(ə)rəs], (Noun)

Definitions:
- green crystals of hydrated ferrous sulphate, especially as an industrial product


Phrases:

Origin:
late Middle English coperose, from Old French couperose, from medieval Latin cuperosa, literally ‘flower of copper’, from late Latin cuprum (see copper) + rosa ‘rose’, translating Greek khalkanthon




definition by Oxford Dictionaries