Canvas

Commonly used as a support for oil or acrylic painting, canvas is a heavy woven fabric made of flax or cotton. Its surface is typically prepared for painting by priming with a ground. Linen — made of flax — is the standard canvas, very strong, sold by the roll and by smaller pieces. A less expensive alternative to linen is heavy cotton duck, though it is less acceptable (some find it unacceptable), cotton being less durable, because it's more prone to absorb dampness, and it's less receptive to grounds and size. For use in painting, a piece of canvas is stretched tightly by stapling or tacking it to a stretcher frame. A painting done on canvas and then cemented to a wall or panel is called marouflage. Canvas board is an inexpensive, commercially prepared cotton canvas which has been primed and glued to cardboard, suitable for students and amateurs who enjoy its portability. Also, a stretched canvas ready for painting, or a painting made on such fabric. Canvas is abbreviated c., and "oil on canvas" is abbreviated o/c.  (Artlex.com)

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