Large, usually measured, land area or small religious booklet

noun

1. A system of body parts or organs that act together to perform some function

   "the digestive tract"

2. A bundle of nerve fibers having a common origin, termination, and function
3. An indefinite stretch of land
4. A defined area of land
5. Extent or lapse of time

noun

1. A pamphlet or leaflet of political or religious propaganda

noun

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

noun

1. Any of many similarly designed houses built on a tract of land

noun

1. 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

noun

1. The part of the respiratory tract including the trachea, bronchi, and lungs compare upper respiratory tract

noun

1. 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

noun

1. A system of organs functioning in respiration and in humans consisting especially of the nose, nasal passages, pharynx, larynx, trachea, bronchi, and lungs respiratory system see lower respiratory tract, upper respiratory tract

noun

1. The part of the respiratory tract including the nose, nasal passages, pharynx, and larynx compare lower respiratory tract

noun

1. The part of the digestive system that consists of the stomach and intestines