a substance used as a coating to protect or decorate a surface (especially a mixture of pigment suspended in a liquid); dries to form a hard coating | the main stem of a tree; usually covered with bark; the bole is usually the part that is commercially useful for lumber |
dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.) | a soft oily clay used as a pigment (especially a reddish brown pigment) |
any substance whose presence in plant or animal tissues produces a characteristic color | |