| tractor (def. 2). |
[trak-ter] 
| 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 semitrailer. |
| 3. | something used for drawing or pulling. |
| 4. | Aeronautics.
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tər