copperas

Meaning

1. (uncountable, usually) Iron(II) sulfate.
2. (uncountable, usually) An obsolete sulphate compound with one of the three metals, zinc, copper or iron.

Synonyms

green vitriol

sulphuric acid

vitriol

Translations

كبريتات الحديدوز

βιτριόλι

θειικός σίδηρος

couperose

copparosa

chalcanthon

vitriool

koperrood

aceche

caparrosa

demir sulfat

zaç

Etymology

Inherited from Middle English: coperas

Cognate with French: couperose

Cognate with Latin: cupri

In summary

From Middle English coperas, coperose (“metallic sulfate”), from Old French coperose. Compare French couperose (“sulfate”), Medieval Latin cuprosa, Late Latin aqua cuprosa, Latin cupri rosa, "rose of copper".