Paris greenParis green
a poisonous, bright-green powder made by reacting sodium arsenite with copper sulfate and acetic acid: now used chiefly as an insecticide
Origin of Paris greenafter Paris
A poisonous emerald-green powder, C4H6As6Cu4O16, used as a pigment, insecticide, and wood preservative.
- Of a shade of pale green, originally produced with Copper(II) acetoarsenite