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photocell

[foh-toh-sel] /ˈfoʊ toʊˌsɛl/
noun, Electronics.
1.
a solid-state device that converts light into electrical energy by producing a voltage, as in a photovoltaic cell, or uses light to regulate the flow of current, as in a photoconductive cell: used in automatic control systems for doors, lighting, etc.
Origin of photocell
1890-1895
First recorded in 1890-95; photo- + cell1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for photocells
Historical Examples
  • Rose Thinker spun twice on her chair and opened her photocells wide.

    Bread Overhead Fritz Reuter Leiber
  • Eyes and photocells turned inquisitorially upon Roger Snedden.

    Bread Overhead Fritz Reuter Leiber
  • All the photocells on Earth and Venus and Mercury are at present busy storing the sun's power in atostors.

    The Ultimate Weapon John Wood Campbell
British Dictionary definitions for photocells

photocell

/ˈfəʊtəʊˌsɛl/
noun
1.
a device in which the photoelectric or photovoltaic effect or photoconductivity is used to produce a current or voltage when exposed to light or other electromagnetic radiation. They are used in exposure meters, burglar alarms, etc Also called photoelectric cell, electric eye
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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photocells in Science
photocell
  (fō'tō-sěl')   
See photoresistor.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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