n. A swift horse; a runner; a war-horse: used chiefly in poetry.n. One who hunts; one who pursues the sport of coursing.n. A discourser; a disputant.n. In ornithology: A bird of the genus Cursorius: as, the cream-colored courser, Cursorius isabellinus.n. plural The birds of the old group Cursores; the struthious birds, as the ostrich, etc.n. A broker; an agent; a dealer; especially, a dealer in horses.n. A groom.