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.
2. Also called catherine wheel.
a kind of firework supported on a pin which
, when ignited, revolves rapidly and gives a dazzling display of light.
at right angles to its rim for engaging the teeth of a gear.
verb (used without object)
to revolve rapidly like a pinwheel: Images of the past pinwheeled through his mind.