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1.
Particles of light or other electromagnetic radiation.
Photons have mass? I didn't even know they were Catholic.
by ScottX November 26, 2006
 
2.
A wave (or particle) that makes up electromagnetic radiation, or 'light.' This particle is also the quantization of the electromagnetic force. A vibrating electron will release a photon.

Scientists are still not sure whether photons are particles or waves. In reality, they have characteristics of both, leading some to suggest that they are particles which ride on an electromagnetic wave like surfers. One wonders what would happen if they fell off their hypothetical surfboards.

"Photon" is also used in The Hitchhiker Trilogy as a curse word, as in "What the photon is it, Ford?"
Photons make up light.
by Daedalus January 07, 2004
 
3.
A replacement for the word 'fuck'. Origins are traced to the increasingly misnamed Hitchhiker's Guide trilogy.
What the photon?
by Mer October 17, 2003
 
4.
n. a flashing LED light source, that when moved in rapid motion in a darkly-lit room gives the impression of simultaneous multiple points of light in the path of the source.
No party is complete without a guy with photons.
by hyperexcel June 17, 2003
 
5.
Blue light for GO !
Bright ,Blue, Ultraviolet Sabre, Vibrating tool, Pole, Ramshaft
^^^^^^^^^^^^^^^\0/ yippee
by Qym April 01, 2004
 
6.
A breast that is massive in size
I love those photonz !
by Twin # 1 April 06, 2003