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quarter-wave plate

[ kwawr-ter-weyv ]
/ ˈkwɔr tərˌweɪv /
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noun Optics.
a crystal thin enough to cause a phase difference of 90° between the ordinary and extraordinary rays of polarized light, thereby converting circularly polarized light into plane polarized light.
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Which of the following words means “to make a crackling sound; crackle”?
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Compare half-wave plate.

Origin of quarter-wave plate

First recorded in 1880–85

Words nearby quarter-wave plate

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use quarter-wave plate in a sentence

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