n.
1 a region or area of indefinite, esp. large, extent (pathless desert tracts).
2 Anat. an area of an organ or system (respiratory tract).
3 Brit. archaic a period of time etc.
Etymology: L tractus drawing f. trahere tract- draw, pull
2.
n. a short treatise in pamphlet form esp. on a religious subject.
Etymology: app. abbr. of L tractatus TRACTATE
3.
n. RC Ch. & Mus. an anthem replacing the alleluia in some masses.
Etymology: med.L tractus (cantus) drawn-out (song), past part. of L trahere draw
Useful english dictionary. 2012.