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. 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.