Courser

Part of speech: noun (n.)

1. One who courses or hunts. leash is a leathern thong by which . . . a courser leads his greyhound. Hanmer.

2. A swift or spirited horse; a racer or a war horse; a charger. [Poetic.] Pope.

3. A grallatorial bird of Europe (Cursorius cursor), remarkable for its speed in running. Sometimes, in a wider sense, applied to running birds of the Ostrich family.