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2017 Word of the Year

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 of physical optics
1825-1835
First recorded in 1825-35
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Based on the Random House Dictionary, © Random House, Inc. 2017.
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