simple past tense and past participle of tract

An area or expanse. / (anatomy) A series of connected body organs, such as the digestive tract. / A small booklet such as a pamphlet, often for promotional or informational uses.

(obsolete) To pursue, follow; to track. / (obsolete) To draw out; to protract.

plural of tract

present participle of tract

(US) Any of many houses, of a similar or identical plan and design, built on a tract of land.

(US) A tract house.

(anatomy) The digestive tract.

System of organs within multicellular animals which takes in food, digests it to extract energy and nutrients, and expels the remaining waste.

(anatomy) The passages, divided into an upper and a lower part, through which air enters and leaves the body, including the mouth, nose and nasal passages, pharynx, larynx, trachea, bronchi and conducting bronchioles, sometimes further including the respiratory bronchioles, alveolar ducts and alveoli.