roller

/ˈroʊlər/

/ˈrʌʊlə/

Other forms: rollers

Definitions of roller

1. noun

   a mechanical device consisting of a cylindrical tube around which the hair is wound to curl it
   synonyms: crimper, curler, hair curler

   type of:

   mechanical device

   mechanism consisting of a device that works on mechanical principles
2. noun

   a cylinder that revolves
   types:

   garden roller

   heavy cast-iron cylinder used to flatten lawns

   paint roller

   a roller that has an absorbent surface used for spreading paint

   platen

   the roller on a typewriter against which the keys strike

   sprocket

   roller that has teeth on the rims to pull film or paper through

   trundle

   small wheel or roller

   type of:

   cylinder

   a solid bounded by a cylindrical surface and two parallel planes (the bases)
3. noun

   a small wheel without spokes (as on a roller skate)
   types:

   caster, castor

   a pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable

   type of:

   wheel

   a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines)
4. noun

   a grounder that rolls along the infield
   type of:

   ground ball, groundball, grounder, hopper

   (baseball) a hit that travels along the ground
5. noun

   Old World bird that tumbles or rolls in flight; related to kingfishers
   types:

   Coracias garrulus, European roller

   common European blue-and-green roller with a reddish-brown back

   ground roller

   Madagascan roller with terrestrial and crepuscular habits that feeds on e.g. insects and worms

   type of:

   coraciiform bird

   chiefly short-legged arboreal nonpasserine birds that nest in holes
6. noun

   pigeon that executes backward somersaults in flight or on the ground
   synonyms: tumbler, tumbler pigeon

   type of:

   domestic pigeon

   domesticated pigeon raised for sport or food
7. noun

   a long heavy sea wave as it advances towards the shore
   synonyms: roll, rolling wave

   type of:

   moving ridge, wave

   one of a series of ridges that moves across the surface of a liquid (especially across a large body of water)