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telephotometer

American  
[tel-uh-foh-tom-i-ter] / ˌtɛl ə foʊˈtɒm ɪ tər /

noun

  1. an instrument for measuring the amount of light emanating from a distant object.

Etymology

Origin of telephotometer

First recorded in 1925–30; tele- 1 + photometer

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.