noun Electronics.

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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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



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



See photoresistor.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.