Payne's greyPronunciation: /peɪnz ˈgreɪ/Definition of Payne's grey noun [mass noun] Printing a composite pigment composed of blue, red, black, and white permanent pigments, used especially for watercolours. Origin: mid 19th century: named after William Payne (fl. 1800), English artistPayne's grey in other Oxford dictionaries Definition of Payne's grey in the US English dictionary