Etymology
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pinwheel (n.)

also pin-wheel, 1690s, "a wheel in the striking train of a clock in which pins are fixed to lift the hammer," from pin (n.) + wheel (n.). The fireworks sense of "long paper case filled with a combustible composition and wound spirally about a disk so that, when supported vertically and lit, it revolves in a wheel of fire" is from 1869.

updated on June 17, 2020

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Definitions of pinwheel from WordNet

pinwheel (n.)
perennial subshrub of Tenerife having leaves in rosettes resembling pinwheels;
Synonyms: Aeonium haworthii
pinwheel (n.)
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'
pinwheel (n.)
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;
Synonyms: pinwheel wind collector
pinwheel (n.)
a circular firework that spins round and round emitting colored fire;
Synonyms: catherine wheel
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.

Dictionary entries near pinwheel

pint

pintail

pintle

pinto

pin-up

pinwheel

pinworm

pinxit

piny

Pinyin

piolet