racehorse

noun

1. A horse that competes in races.

   “They were bosker horses. Until I went to work for Bill I didn't know how good racehorses are.”

   “Long before you see the lean, handsome heads peering mildly over the half-doors of the loose boxes, you know that East Ilsley's business is training racehorses.”

   “Picture yourself betting on a racehorse, seeing the animal take the lead, and then watching the horse suddenly stop because it pulled a muscle not properly warmed up by its trainers. You’d get pretty heated under the collar, and that’s not the kind of warm-up that’s very beneficial. Horseflesh and humanflesh alike need to be warmed up before strenuous activity.”

   “Clearly, it’s that Secretariat is overrated. OK, exhale. I’m not trolling you. I’m just being extremely nitty about the marginal shades of “really, really great.” By “overrated,” I certainly don’t mean to imply that Secretariat isn’t the best 3-year-old American racehorse in history – he is.”

2. Any member of certain species of genus Congiopodus.