'Roller bolt' definitions:
Definition of 'Roller bolt'
From: GCIDE
- 10. (Zool.) Any species of small ground snakes of the family Tortricidae. [1913 Webster]
- Ground roller (Zool.), any one of several species of Madagascar rollers belonging to Atelornis and allied genera. They are nocturnal birds, and feed on the ground.
- Roller bolt, the bar in a carriage to which the traces are attached; a whiffletree. [Eng.]
- Roller gin, a cotton gin inn which rolls are used for separating the seeds from the fiber.
- Roller mill. See under Mill.
- Roller skate, a skate which has small wheels in the place of the metallic runner; -- designed for use in skating upon a smooth, hard surface, other than ice. [1913 Webster]