photocell

[foh-toh-sel]
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

First recorded in 1890–95; photo- + cell1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for photocells

Historical Examples of photocells

  • 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

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, etcAlso 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

photocells in Science

photocell

[fōtō-sĕl′]
  1. See photoresistor.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.