Tractor definitions

Webster's 1828 Dictionary

TRACT'OR, n. That which draws, or is used for drawing.

WordNet (r) 3.0 (2005)

n
1: a wheeled vehicle with large wheels; used in farming and other applications
2: a truck that has a cab but no body; used for pulling large trailers or vans

Merriam Webster's

noun Etymology: New Latin, from Latin trahere Date: 1900 1. a. a 4-wheeled or tracklaying automotive vehicle used especially for drawing farm equipment b. a smaller 2-wheeled apparatus controlled through handlebars by a walking operator c. truck III,3f 2. an airplane having the propeller forward of the main supporting surfaces

Oxford Reference Dictionary

n. 1 a motor vehicle used for hauling esp. farm machinery, heavy loads, etc. 2 a traction-engine. Etymology: LL tractor (as TRACTION)

Webster's 1913 Dictionary

Tractor Tract"or, n. An a["e]roplane flying machine having one or more tractor screws.

Webster's 1913 Dictionary

Tractor Tract"or, n. [NL., from L. trahere, tractum, to draw.] 1. That which draws, or is used for drawing. 2. pl. (Med.) Two small, pointed rods of metal, formerly used in the treatment called Perkinism.

Collin's Cobuild Dictionary

(tractors) A tractor is a farm vehicle that is used to pull farm machinery and to provide the energy needed for the machinery to work. N-COUNT

Moby Thesaurus

Cat, Caterpillar, DUKW, Rome plow, amphibian, bulldozer, calfdozer, crawler, creeper, double-prop, duck, go-devil, grader, halftrack, lawn-tractor, multi-prop, piston plane, propeller plane, propjet, pusher, pusher plane, scraper, single-prop, tank, tracklayer, traction engine, turbo-prop, turbo-propeller plane, twin-prop