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telephotometer

[ tel-uh-foh-tom-i-ter ]
/ ˌtɛl ə foʊˈtɒm ɪ tər /
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noun
an instrument for measuring the amount of light emanating from a distant object.
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Origin of telephotometer

First recorded in 1925–30; tele-1 + photometer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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