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photoelectric cell

noun, Electronics.
Origin of photoelectric cell
1890-95 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for photoelectric cell
  • He gasped at a display in which a flashlight illuminated a photoelectric cell, creating a crackling sound.
  • Each light is equipped with a photoelectric cell that senses the amount of daylight.
  • Some traps are available with a photoelectric cell that turns the light on at dusk and off at dawn.
  • Particles in the gas stream absorb or scatter the light and reduce the signal at the photoelectric cell.
  • Smoke emission is defined by its opacity, measured by means of a light absorption meter using a photoelectric cell.
British Dictionary definitions for photoelectric cell

photoelectric cell

another name for photocell
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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photoelectric cell in Science
photoelectric cell  
An electronic device having an electrical output that varies in response to the strength of incident electromagnetic radiation, especially visible light. Photoelectric cells make use of the photoelectric effect, in which electrons are displaced by photons in substances such as silicon or selenium to generate a voltage in response to radiation. Photoelectric cells are used to detect light electronically in cameras and night vision apparatus and to generate electrical power in solar cells. Also called photovoltaic cell. See also solar cell.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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