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photoelectric meter

American  

noun

Photography.

  1. an exposure meter using a photocell for the measurement of light intensity.

Example Sentences

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There was a photoelectric meter which determines the Vitamin D content of a cod-liver oil sample by passing a light beam through it.

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.