Cours"er (k?rs"?r), n. [F. coursier.] 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. (Zoöl.) 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.