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transmissometer

American  
[trans-muh-som-i-ter, tranz-] / ˌtræns məˈsɒm ɪ tər, ˌtrænz- /

noun

Meteorology.

  1. an instrument for measuring visibility or the transmission of light in the atmosphere.

Etymology

Origin of transmissometer

First recorded in 1930–35; transmiss(ion) + -o- + -meter

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.