sulphur butterfly
noun
Origin of sulphur butterfly
First recorded in 1875–80
Words nearby sulphur butterfly
sulphonic acid,
sulphonium compound,
sulphonmethane,
sulphonyl,
sulphur,
sulphur butterfly,
sulphur dioxide,
sulphur springs,
sulphur trioxide,
sulphur tuft,
sulphur-bottom