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| tractor | (แทรค'เทอะ) n. เครื่องแทรกเตอร์, เครื่องลาก, เครื่องฉุด, เครื่องดึง | contractor | (คอน'แทรคเทอะ) n. ผู้ทำสัญญา, สิ่งที่หดตัว, กล้ามเนื้อที่หดตัว | protractor | (โพรแทรค'เทอะ) n. ไม้วัดมุม, ผู้ยืด, ผู้กาง, ผู้เลื่อนเวลา, สิ่งยืด, สิ่งกาง, กล้ามเนื้อยืดแขนขาหรือส่วนอื่นของร่างกาย |
| | | | | | แทรกเตอร์ | [thraēktoē] (n) EN: tractor FR: tracteur [ m ] |
| | | tractor | (n) a wheeled vehicle with large wheels; used in farming and other applications | tractor | (n) a truck that has a cab but no body; used for pulling large trailers or vans |
| Tractor | 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 aeroplane 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. ] | Tractor airplane | n. (Aviation) An airplane having one or more tractor propellers; -- called also tractor. [ Webster 1913 Suppl. ] | Tractoration | n. See Perkinism. [ 1913 Webster ] | Tractor propeller | { or }. (Aviation) A propeller screw placed in front of the supporting planes of an airplane instead of behind them, so that it exerts a pull instead of a push. Hence, Tractor monoplane, Tractor biplane, etc. This is the most common arrangement for propellers on modern airplanes. [ Webster 1913 Suppl. ] Variants: Tractor screw | Tractor-trailer | n. a combination of a tractor{ 4 } hooked up to a trailer, forming a common type of truck{ 7 } used for carrying freight on highways. “Traffic was backed up for miles by a jackknifed tractor-trailer.” [ PJC ] | Tractory | n. [ L. tractorius of drawing, fr. trahere, tractum, to draw. ] (Geom.) A tractrix. [ 1913 Webster ] |
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