Definition of "Pinwheel" :

noun: a circular firework that spins round and round emitting colored fire

noun: a toy consisting of vanes of colored paper or plastic that is pinned to a stick and spins when it is pointed into the wind

noun: a wheel that has numerous pins that are set at right angles to its rim

"He spun the pinwheel and it stopped with the pointer on Go'."

noun: perennial subshrub of Tenerife having leaves in rosettes resembling pinwheels