Cōurs'er, n.

n. [Fr. coursier.] 1. One who courses or hunts. A leash is a leathern thong by which a courser leads his greyhound. Hammer. 2. A swift or spirited horse; a racer. The impatient courser pants in every vein. Pope.

3. One who prosecutes or pursues a discourse; a discourser; a disputant. [Obs.] Wood.
4. (pl.) (Ornith.) A sub-family of birds, belonging to the order Grallæ: having very small wings, so that they can not fly, but are able to run with great speed, as the ostrich, cassowary, and the like; Cursōrine. Baird.