[mass noun](亦作 watercolours)artists' paint made with a water-soluble binder such as gum arabic, and thinned with water rather than oil, giving a transparent colour 水彩(颜料) ■[count noun]a picture painted with watercolours 水彩画 ■the art of painting with watercolours, especially using a technique of producing paler colours by diluting rather than by adding white 水彩画技法