Hypertext Webster Gateway: "tractor"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Tractor \Tract"or\, n.
An a["e]roplane flying machine having one or more tractor
screws.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
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.
From WordNet (r) 1.7 (wn)
tractor
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
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