D defs.my
Entry 3 senses Webster, 1913

Courser

/(k?rs"?r)/ · Cours·er · IPA /ˈkɜːsə/
01 n. One who courses or hunts.
  1. 1.
    One who courses or hunts.
    “leash is a leathern thong by which . . . a courser leads his greyhound.” — Hanmer.
  2. 2.
    A swift or spirited horse; a racer or a war horse; a charger.[Poetic.]
  3. 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.(Zool.)