truck tractor
Tractor Tract"or, n. [NL., from L. trahere, tractum, to draw.] 1. That which draws, or is used for drawing. [1913 Webster]

2. pl. (Med.) Two small, pointed rods of metal, formerly used in the treatment called Perkinism. [1913 Webster]

3. a motor vehicle with a powerful engine and large wheels, used to pull farm equipment such as plows, harvesting machinery, etc., over farm land. Smaller forms of farm tractor are completely open, with only a seat for the driver. [PJC]

4. a motor vehicle with a driver's cab and a powerful engine, fitted with a coupling at the rear, and designed to pull a large trailer or semi-trailer on the open highway; -- called also {truck tractor}. The combination of such a tractor with its trailer is called a tractor-trailer, and is a common form of truck used for commercial shipping of freight. [PJC]

5. (Aviation) A propeller screw placed in front of the supporting planes of an a["e]roplane instead of behind them, so that it exerts a pull instead of a push; -- called also {Tractor screw} and {Tractor propeller}. [Webster 1913 Suppl.]

6. (Aviation) An airplane having one or more tractor propellers; -- called also {tractor airplane}. [Webster 1913 Suppl.]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

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  • Tractor — Tract or, n. [NL., from L. trahere, tractum, to draw.] 1. That which draws, or is used for drawing. [1913 Webster] 2. pl. (Med.) Two small, pointed rods of metal, formerly used in the treatment called Perkinism. [1913 Webster] 3. a motor vehicle… …   The Collaborative International Dictionary of English

  • tractor airplane — Tractor Tract or, n. [NL., from L. trahere, tractum, to draw.] 1. That which draws, or is used for drawing. [1913 Webster] 2. pl. (Med.) Two small, pointed rods of metal, formerly used in the treatment called Perkinism. [1913 Webster] 3. a motor… …   The Collaborative International Dictionary of English

  • Tractor propeller — Tractor Tract or, n. [NL., from L. trahere, tractum, to draw.] 1. That which draws, or is used for drawing. [1913 Webster] 2. pl. (Med.) Two small, pointed rods of metal, formerly used in the treatment called Perkinism. [1913 Webster] 3. a motor… …   The Collaborative International Dictionary of English

  • Tractor screw — Tractor Tract or, n. [NL., from L. trahere, tractum, to draw.] 1. That which draws, or is used for drawing. [1913 Webster] 2. pl. (Med.) Two small, pointed rods of metal, formerly used in the treatment called Perkinism. [1913 Webster] 3. a motor… …   The Collaborative International Dictionary of English

  • truck — truck1 truckable, adj. /truk/, n. 1. any of various forms of vehicle for carrying goods and materials, usually consisting of a single self propelled unit but also often composed of a trailer vehicle hauled by a tractor unit. 2. any of various… …   Universalium

  • tractor — /trak teuhr/, n. 1. a powerful motor driven vehicle with large, heavy treads, used for pulling farm machinery, other vehicles, etc. 2. Also called truck tractor. a short truck with a driver s cab but no body, designed for hauling a trailer or… …   Universalium

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