from the GNU version of the Collaborative International Dictionary of English
- adj. the theory enunciated by Sir Isaac Newton, that light consists in the emission and rapid progression of minute particles or corpuscles. The theory is now generally rejected, and supplanted by the undulatory theory.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (physics) the theory that light is transmitted as a stream of particles
Sorry, no etymologies found.