American Heritage Dictionary
(2)
Century Dictionary
GNU Webster's 1913
WordNet
(1)
Elsewhere on the web
As the sound starts to pulse and contract, our physicists can tell when a photon is going to be emitted.— Demo: Stunning data visualization in the AlloSphere
For a photon, you might think m = 0 would mean p = 0, but when v = c (the speed of light), gamma =— Medlogs - Recent stories

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