Wā'ter-cŏl'or, n.

noun

(-kŭl'ur), n. (Paint.) A color ground with water and gum or size, which preserves its consistency in a solid cake when dried, and which can easily be mixed with water by rubbing on a moistened palette when wanted for use; a color the vehicle of which is water;—so called in distinction from oil-color.

Moist water-colors in a semi-fluid state are also used for sketching from nature. They require no rubbing, and are kept sometimes in a metal tube, which prevents them from drying up. Fairholt.