WordReference Random House Learner's Dictionary of American English © 2015
race•horse /ˈreɪsˌhɔrs/USA pronunciation n. [countable]

    a horse raised or kept for racing.

Collins Concise English Dictionary © HarperCollins Publishers::

racehorse /ˈreɪsˌhɔːs/ n
  1. a horse specially bred for racing

'racehorse' also found in these entries:

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