(MATERIAL) [noun] [C] - (a picture made using) a colouring material which can be powdery or waxy and is usually in the shape of a small stickDo you prefer working in paints or pastels?The show includes eighty-five paintings, pastels and sculptures by artists including Cézanne, van Gogh, Monet, Renoir and Sisley.
PASTEL
Meaning of PASTEL in English
Cambridge English vocab. Кембриджский английский словарь. 2012