| bull's-eye | 1. 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. 6. <astronomy> Aldebaran, a bright star in the eye of Taurus or the Bull. 7. 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. Source: Websters Dictionary (01 Mar 1998) |
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| bull's-eye maculopathy | An ocular condition in which oedema or degeneration of the sensory retina at the posterior pole of the eye causes alternating areas of light and dark, as in a target; seen in toxic, inflammatory, and hereditary conditions. (05 Mar 2000) |
| bull terrier | <zoology> A breed of dogs obtained by crossing the bulldog and the terrier. Source: Websters Dictionary (01 Mar 1998) |
| bull trout | <zoology> In England, a large salmon trout of several species, as Salmo trutta and S. Cambricus, which ascend rivers; called also sea trout. Salvelinus malma of California and Oregon; called also Dolly Varden trout and red-spotted trout. The huso or salmon of the Danube. Source: Websters Dictionary (01 Mar 1998) |