- a child's toy consisting of a wheel or leaflike curls of paper or plastic loosely attached by a pin to a stick, designed to revolve when blown by or as by the wind.
- a kind of firework supported on a pin which, when ignited, revolves rapidly and gives a dazzling display of light.
- a wheel having pins at right angles to its rim for engaging the teeth of a gear.
- to revolve rapidly like a pinwheel: Images of the past pinwheeled through his mind.
- another name for Catherine wheel (def. 1)
- a cogwheel whose teeth are formed by small pins projecting either axially or radially from the rim of the wheel
- a toy consisting of plastic or paper vanes attached to a stick in such a manner that they revolve like the sails of a windmill
