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Tract may refer to: * Land lot, a section of land * Census tract, a geographic region defined for the purpose of taking a census * Tract (literature), a short written work, usually of a political or religious nature * Tract (liturgy), a component of Roman Catholic liturgy * Neural tract, a bundle of fibers that connects different parts of the central nervous system - analogous to a nerve in the peripheral nervous system * A collection of related anatomic structures, such as: * * Gastrointestinal tract * * Genitourinary tract * * Reproductive tract * * A grouping of feathers, e.g. primaries, auriculars, scapulars ==Businesses== * Tract, an imprint of the German group VDM Publishing devoted to the reproduction of Wikipedia content 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tract」の詳細全文を読む スポンサード リンク
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