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Noun:
copperas
kó-pu-rus
Iron
(II)
sulphate
, a
green
crystalline
substance
used in
inks
,
dyes
, and as a
disinfectant
"Copperas was
once
commonly
used in the
tanning
industry
"
Derived forms:
copperases
Encyclopedia:
Copperas
copper colour
copper coloured
copper glance
copper mine
copper nose
copper oxide
copper pyrites
copper rockfish
copper sulfate
copper sulphate
copperas
copper-base alloy
copper-bottom
copper-bottomed
copperhead
copper-nickel
copperplate
copperplate engraving
copper's nark
coppersmith
copperware