intestine The portion of the gastrointestinal tract between the stomach and anus; it consists of the small intestine and the large intestine. The intestine is usually coiled, and the internal surface area is greatly increased by the presence of folds and projections (villi) to enable efficient digestion and absorption. Related category • ANATOMY AND PHYSIOLOGY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |