Definition of racehorse in English:
A horse bred, trained, and kept for racing.
- He is passionate about horses and breeds thoroughbred racehorses.
- Versatility is a trait not often seen in Thoroughbred racehorses.
- The higher the system is tuned, the more likely it is to break down: true of racing cars, racehorses and footballers.
Definition of racehorse in:
- US English dictionary