Paris green


Par·​is green ˈper-əs- How to pronounce Paris green (audio)
: a very poisonous green copper and arsenic compound C4H6As6Cu4O16 used especially formerly as an insecticide and pigment
: a brilliant yellowish green

Word History


Paris, France

First Known Use

1845, in the meaning defined at sense 1

Time Traveler
The first known use of Paris green was in 1845

Dictionary Entries Near Paris green

Cite this Entry

“Paris green.” Dictionary, Merriam-Webster, Accessed 7 Dec. 2023.

Medical Definition

Paris green

Par·​is green ˌpar-əs- How to pronounce Paris green (audio)
: a very poisonous copper-based bright green powder Cu(C2H3O2)2·3Cu(AsO2)2 that is used as an insecticide and pigment
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