wave-theory

wave theory

noun
1.
Also called undulatory theory. Physics. the theory that light is transmitted as a wave, similar to oscillations in magnetic and electric fields. Compare corpuscular theory.
2.
Historical Linguistics. a theory that accounts for shared features among languages or dialects by identifying these features as innovations that spread from their points of origin to the speech of contiguous areas.


Origin:
1825–35

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World English Dictionary
wave theory
 
n
1.  the theory proposed by Huygens that light is transmitted by waves
2.  See electromagnetic wave any theory that light or other radiation is transmitted as waves

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