Bull's"-eye` (?), n.
1. Naut.
A small circular or oval wooden block without sheaves, having a groove around it and a hole through it, used for connecting rigging.
2.
A small round cloud, with a ruddy center, supposed by sailors to portend a storm.
3.
A small thick disk of glass inserted in a deck, roof, floor, ship's side, etc., to let in light.
4.
A circular or oval opening for air or light.
5.
A lantern, with a thick glass lens on one side for concentrating the light on any object; also, the lens itself.
Dickens.
6. Astron.
Aldebaran, a bright star in the eye of Taurus or the Bull.
7. Archery & Gun.
The center of a target.
8.
A thick knob or protuberance left on glass by the end of the pipe through which it was blown.
9.
A small and thick old-fashioned watch.
[Colloq.]
© Webster 1913.