tract Definition

a system of body parts or organs that act together to perform some function

a bundle of nerve fibers having a common origin, termination, and function

an area either large or small: such as

a pamphlet or leaflet of political or religious propaganda; also : a piece of writing that is suggestive of such a tract

verses of Scripture (as from the Psalms) used between the gradual and the Gospel at some masses (as during penitential seasons)

any of many similarly designed houses built on a tract of land

the tubular passage typically extending from the mouth to the anus or cloaca that functions in digestion and absorption of food and elimination of residual waste and that in most mammals includes the mouth, pharynx, esophagus, stomach, intestine, and anus —called also alimentary canal, alimentary tract

any of four columns of motor fibers that run in pairs on each side of the spinal cord and are continuations of the pyramids of the medulla oblongata

the part of the digestive system that consists of the stomach and intestines

digestive tract