tract
1Anatomy.
a definite region or area of the body, especially a group, series, or system of related parts or organs: the digestive tract.
a bundle of nerve fibers having a common origin and destination.
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.
Ornithology. a pteryla.
Origin of tract
1Other words for tract
Words that may be confused with tract
- track, tract
Other definitions for tract (2 of 2)
a brief treatise or pamphlet for general distribution, usually on a religious or political topic.
Origin of tract
2Other words for tract
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
British Dictionary definitions for tract (1 of 3)
/ (trækt) /
an extended area, as of land
anatomy a system of organs, glands, or other tissues that has a particular function: the digestive tract
a bundle of nerve fibres having the same function, origin, and termination: the optic tract
archaic an extended period of time
Origin of tract
1British Dictionary definitions for tract (2 of 3)
/ (trækt) /
a treatise or pamphlet, esp a religious or moralistic one
Origin of tract
2British Dictionary definitions for tract (3 of 3)
/ (trækt) /
RC Church an anthem in some Masses
Origin of tract
3Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for tract
[ trăkt ]
A series of body organs that work together to perform a specialized function, such as digestion.
A bundle of nerve fibers, especially in the central nervous system, that begin and end in the same place and share a common function.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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