One of a race of monsters having a head, torso, and arms of a man, and the body and legs of a horse. Often depicted as rowdy drunkards, with Chiron being a notable exception.
A skillful horseman or horsewoman.
A U.S. upper stage, with a restartable liquid-propellant engine, used with an Atlas or Titan booster to launch satellites and probes.
An icy planetoid that orbits the Sun between Jupiter and Neptune
A deliberate scoundrel.
A vile, wicked person.
An extremely depraved person, or one capable or guilty of great crimes.
Any opponent player, especially a hypothetical player for example and didactic purposes. Compare: hero (“the current player”).
In fiction, a character who has the role of being bad, especially antagonizing the hero.