·noun The center of a target.
II. Bull's-eye ·noun A small and thick old-fashioned watch.
III. Bull's-eye ·noun A circular or oval opening for air or light.
IV. Bull's-eye ·noun Aldebaran, a bright star in the eye of Taurus or the Bull.
V. Bull's-eye ·noun A small round cloud, with a ruddy center, supposed by sailors to portend a storm.
VI. Bull's-eye ·noun A thick knob or protuberance left on glass by the end of the pipe through which it was blown.
VII. Bull's-eye ·noun A small thick disk of glass inserted in a deck, roof, floor, ship's side, ·etc., to let in light.
VIII. Bull's-eye ·noun A lantern, with a thick glass lens on one side for concentrating the light on any object; also, the lens itself.
IX. Bull's-eye ·noun A small circular or oval wooden block without sheaves, having a groove around it and a hole through it, used for connecting rigging.