racehorse
n. B1 Intermediate US //ˈɹeɪsˌhɔɹs// UK //ɹˈeɪshɔːs// race·horse
n. a horse that is trained to run in races. These horses are usually very fast and have a special look because they are bred for speed.
n. a horse specifically bred and trained for competitive racing. Often refers to thoroughbreds, which are the most common breed in professional horse racing.
The racehorse won the first prize at the local track.
The owner spent years training the young racehorse to prepare it for the national championship.
While some racehorses are retired from the track, many are bred specifically for their genetic potential to excel in high-stakes competitions.
From race + horse.