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photosensor

American  
[foh-tuh-sen-ser, -sawr] / ˈfoʊ təˌsɛn sər, -sɔr /

noun

  1. a photocell used to detect light.

Etymology

Origin of photosensor

First recorded in 1960–65; photo- + sensor

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.