tract

¹ American  

[trakt] / trækt /

noun

1. an expanse or area of land, water, etc.; region; stretch.

   Synonyms:

   territory, district

2. Anatomy.

   1. a definite region or area of the body, especially a group, series, or system of related parts or organs.

      the digestive tract.

   2. a bundle of nerve fibers having a common origin and destination.

3. a stretch or period of time; interval; lapse.

4. Roman Catholic Church. an anthem consisting of verses of Scripture, sung after the gradual in the Mass from Septuagesima until the day before Easter and on certain other occasions, taking the place of the alleluias and the verse that ordinarily accompany the gradual.

5. Ornithology. a pteryla.

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tract ² American  

[trakt] / trækt /

noun

1. a brief treatise or pamphlet for general distribution, usually on a religious or political topic.

   Synonyms:

   disquisition, homily, essay

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tract ¹ British  

/ trækt /

noun

1. a treatise or pamphlet, esp a religious or moralistic one

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tract ² British  

/ trækt /

noun

1. RC Church an anthem in some Masses

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tract ³ British  

/ trækt /

noun

1. an extended area, as of land

2. anatomy a system of organs, glands, or other tissues that has a particular function

   the digestive tract

3. a bundle of nerve fibres having the same function, origin, and termination

   the optic tract

4. archaic an extended period of time

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tract Scientific  

/ trăkt /

1. A series of body organs that work together to perform a specialized function, such as digestion.

2. A bundle of nerve fibers, especially in the central nervous system, that begin and end in the same place and share a common function.

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Etymology

Origin of tract¹

First recorded in 1350–1400; (in senses referring to extent of space) from Latin tractus “stretch (of space or time), a drawing out,” equivalent to trac-, variant stem of trahere “to draw” + -tus suffix of verbal action; tract ¹ def. 4 is from Medieval Latin tractus, apparently identical with the above, though literal sense unexplained

Origin of tract²

1400–50; late Middle English tracte, apparently shortening of Medieval Latin tractātus tractate

Explanation

A tract is a large, open piece of land — like that tract of farmland you bought when you decided your dream in life was to raise llamas. Tract is also a word for a short pamphlet or booklet, like that tract you recently read entitled "The Care and Feeding of Llamas." In addition to referring to areas of land and small booklets, the word tract can describe complicated systems or structures in the body. If you were to unwind your intestine, an important part of your digestive tract, it would not stretch across a large tract of land, but only 25-28 feet — but that's still pretty long! (You probably don't need to read a tract on human anatomy to realize this would be an unhealthy experiment.)

Example Sentences

Padcev, an antibody-drug conjugate for patients with bladder and urinary tract cancer, and Ibrance, a treatment for metastatic breast cancer, are two standouts within the portfolio.

From Barron's • May 5, 2026

“Inadequate nutrition, particularly vitamin A deficiency, can impair the lining of the digestive tract, predisposing birds to inflammation and secondary illness.”

From Los Angeles Times • Apr. 20, 2026

It causes inflammation in the digestive tract and can lead to symptoms such as diarrhea, cramping, abdominal pain and weight loss.

From Science Daily • Apr. 3, 2026

“The following year, in 1961, we moved to a four-bedroom, white tract house with green trim in Thousand Oaks,” Russell said.

From MarketWatch • Mar. 26, 2026

It may be absorbed through the skin, may be breathed in as a spray or dust, and of course is absorbed from the digestive tract if residues are swallowed.

From "Silent Spring" by Rachel Carson

Related Words

• estate
• expanse
• parcel
• plot
• portion
• section