A shoe with wheels fixed to the sole which can be extended for skating or retracted for walking.

(historical) A simple mill, often powered by animals, which grinds a material (grain, olives, chalk, etc) between a stationary horizontal stone disk and two vertical stone cylinders, in order to produce flour, olive oil, etc.

A small tube that is rolled into a person's hair in order to curl it, making a new hairstyle.

plural of roller blind

A blind for a window, usually of stiffened fabric, mounted on a pole and operated with a chain or spring mechanism.

A shutter (for a window or door) consisting of a series of horizontal sections that are hinged together and attached to a roller at the top.

A roller sieve used in machines for making paper, to press out water from the pulp, and set the paper.

A clothed cylinder (usually having straight teeth) in front of the doffer in a carding machine.

A cotton gin in which rolls are used for separating the seeds from the fiber.

Any of the Brachypteraciidae, a small family of non-migratory near-passerine birds restricted to Madagascar, and related to the kingfishers, bee-eaters and rollers.