• WordNet 3.6
    • n pinwheel a circular firework that spins round and round emitting colored fire
    • n pinwheel 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
    • n pinwheel 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'"
    • n pinwheel perennial subshrub of Tenerife having leaves in rosettes resembling pinwheels
    • ***
Century Dictionary and Cyclopedia
    • n pinwheel A contrate wheel in which the cogs are pins set into the disk.
    • n pinwheel In tanning, a stout circular box containing warm water or water and melted tallow, in which hides are rolled about over strong wooden pins fastened to the inner circumference of the box.
    • n pinwheel A kind of firework, consisting of a long paper case filled with a combustible composition and wound spirally about a disk of pasteboard or wood. When it is supported vertically on a pivot, and ignited, it revolves rapidly, forming a wheel of fire.
    • pinwheel In tanning, to subject to the action of the pinwheel.
    • ***


In literature:

It seemed a long time, although it was really only a few minutes, before the last pinwheel subsided.
"Anne Of Avonlea" by Lucy Maud Montgomery
It whirled through his cringing brain like a pinwheel suddenly lighted.
"The Window-Gazer" by Isabel Ecclestone Mackay
It was a vision of red and gold with wheels that looked like pinwheels in a fireworks display.
"Pee-wee Harris" by Percy Keese Fitzhugh
The boys also have fine, large pinwheels.
"Big People and Little People of Other Lands" by Edward R. Shaw
It must be Karospina in his workshop, at his rockets, pinwheels, torpedoes, and firecrackers.
"Visionaries" by James Huneker
John's fingers spun around like a paper pinwheel.
"A Son of the City" by Herman Gastrell Seely
The earth, jungle and moons spun in a pinwheeled blur, slowed, and settled to their proper places.
"Survival Tactics" by Al Sevcik
Pinwheels rushed across the screen.
"Hunters Out of Space" by Joseph Everidge Kelleam
Let the pinwheels whiz!
"Frank Merriwell's Son" by Burt L. Standish
That's where the pinwheel struck him.
"Peck's Bad Boy and His Pa 1883" by George W. Peck

In poetry:

Firecrackers and torpedoes,
Trumpet and flag and drum,
Rockets and pinwheels and paper caps,
For Fourth of July had come.
"Young America" by Carolyn Wells

In news:

Watch How to Assemble Pinwheel Cookies in the Rachael Ray Video.
Image shows 'no organics' zone around Pinwheel .
Project Pinwheel Campaign Speaks to Needs of Wisconsin's Youth.
A 'Pinwheel' of a Galaxy.
Pinwheels are simple and beautiful, Childhood should be too.
Pinwheel 'gardens' sprout up in Onondaga County to increase awareness of child abuse.
Beginning this Saturday, pinwheels representing the number of child abuse cases reported in 2008 will be on display at Newton Federal Bank.
Image shows 'no organics' zone around Pinwheel.
The idea was that as the pinwheels whirled in the wind, the students' thoughts and feelings will spread throughout the community, the country and eventually the world.
Each pinwheel represents a baby that was born prematurely in Martin County over the past year.
98 pinwheels symbolize the 98 victims of sexual and violent crimes from January to March 2012.
Garlic -Herb Pinwheels Appetizer.
First Montessori School of Atlanta students, ages 12 to 14, placed about 200 pinwheels in front of their campus Sept 21 to mark the International Day of Peace.
Anastasia's Pinwheels for Peace .
Kindergarten Ashton and fifth grader Lucas place their pinwheels so they're separated from the others.

In science:

Also, I’m not including the “pinwheels” and related phenomena (see, e.g., Tuthill et al. 1999) around dust-producing WC stars, which represent a very different type of “interacting winds”.
Eta Carinae and Nebulae Around Massive Stars: Similarities to Planetary Nebulae?
The motion of the stars causes the contact surface to wind up and form large scale spiral structures (Fig. 2), reminiscent of the beautiful “pinwheel nebulae” (Tuthill et al. 2008).
3D modelling of the colliding winds in Eta Carinae - evidence for radiative inhibition
Recently Bressloff and Cowan [15, 14] introduced a model of a hypercolumn in V1 consisting of orientation and spatial frequency preferences organized around a pair of pinwheels.
Hyperbolic planforms in relation to visual edges and textures perception
One pinwheel is centered at a CO blob and encodes coarse to medium coarse scales, the other is centered at a region that encodes medium coarse to fine scales.
Hyperbolic planforms in relation to visual edges and textures perception
Orientation columns in cat are organized in pinwheel like patterns.
Hyperbolic planforms in relation to visual edges and textures perception