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physical optics

noun
1.
the branch of optics concerned with the wave properties of light, the superposition of waves, the deviation of light from its rectilinear propagation in a manner other than that considered by geometrical optics, the interaction of light with matter, and the quantum, corpuscular aspects of light.
Origin
1825-1835
1825-35
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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18
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