peppered moth
noun
a European geometrid moth, Biston betularia, occurring in a pale grey speckled form in rural areas and a black form in industrial regions
See also melanism (def. 1)
Words nearby peppered moth
pepper-upper,
pepperbox,
pepperbush,
peppercorn,
peppercorn rent,
peppered moth,
peppergrass,
pepperidge,
peppermint,
peppermint camphor,
peppermint spirit