Tract may refer to:
Geography and real estate
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Housing tract
Tract housing is a type of housing development in which multiple similar houses are built on a tract (area) of land that is subdivided into smaller lots. Tract housing developments are found in suburb developments that were modeled on the "Levit ...
, an area of land that is subdivided into smaller individual lots
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Land lot or tract, a section of land
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Census tract, a geographic region defined for the purpose of taking a census
Writings
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Tract (literature)
A tract is a literary work and, in current usage, usually religious in nature. The notion of what constitutes a tract has changed over time. By the early part of the 21st century, a tract referred to a brief pamphlet used for religious and poli ...
, a short written work, usually of a political or religious nature
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Tract (liturgy)
The tract (Latin: tractus) is part of the proper of the Christian liturgical celebration of the Eucharist, used instead of the Alleluia in Lent or Septuagesima, in a Requiem Mass, and other penitential occasions, when the joyousness of an Alleluia ...
, a component of Roman Catholic liturgy
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Treatise
A treatise is a formal and systematic written discourse on some subject, generally longer and treating it in greater depth than an essay, and more concerned with investigating or exposing the principles of the subject and its conclusions." Tre ...
Biology
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Nerve tract, a bundle of fibers that connects different parts of the central nervous system - analogous to a nerve in the peripheral nervous system
* A genetic tract, a sequence of repeating nucleotides or amino acids, such as a
polyglutamine tract A polyglutamine tract or polyQ tract is a portion of a protein consisting of a sequence of several glutamine units. A tract typically consists of about 10 to a few hundred such units.
A multitude of genes, in various eukaryotic species (including h ...
* A collection of related anatomic structures, such as:
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Gastrointestinal tract
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Genitourinary tract
The genitourinary system, or urogenital system, are the organs of the reproductive system and the urinary system. These are grouped together because of their proximity to each other, their common embryological origin and the use of common pathw ...
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Reproductive tract
The reproductive system of an organism, also known as the genital system, is the biological system made up of all the anatomical organs involved in sexual reproduction. Many non-living substances such as fluids, hormones, and pheromones are al ...
** A grouping of
feathers
Feathers are epidermal growths that form a distinctive outer covering, or plumage, on both avian (bird) and some non-avian dinosaurs and other archosaurs. They are the most complex integumentary structures found in vertebrates and a premier ...
, e.g. primaries, auricular, scapular
Businesses
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Tract (imprint), an imprint of the German group VDM Publishing devoted to the reproduction of Wikipedia content
See also
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Track (disambiguation)
Track or Tracks may refer to:
Routes or imprints
* Ancient trackway, any track or trail whose origin is lost in antiquity
* Animal track, imprints left on surfaces that an animal walks across
* Desire path, a line worn by people taking the short ...
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{{disambiguation