photodetector
[ foh-toh-di-tek-ter ]
/ ˈfoʊ toʊ dɪˌtɛk tər /
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noun
Electronics. any device, as a photodiode, phototube, or photovoltaic cell, that uses the photoelectric effect to convert radiant energy into an electrical signal.
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The rainy weather could not ________ my elated spirits on my graduation day.
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021