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[foh-toh-i-lek-trik] /ˌfoʊ toʊ ɪˈlɛk trɪk/
pertaining to the electronic or other electric effects produced by light.
Origin of photoelectric
1860-65; photo- + electric
Related forms
photoelectrically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for photoelectric
  • He gasped at a display in which a flashlight illuminated a photoelectric cell, creating a crackling sound.
  • Same for the reflectors on concentrating collectors as for the photoelectric cells.
  • The photoelectric controls shall also be equipped with a built-in expulsion-type surge and lighting protection arrester.
  • All newly installed smoke alarms, including replacement smoke alarms, are now required to be photoelectric.
  • Connect the photoelectric control to the lighting system.
  • There are two types of smoke alarms in general use for residential smoke alarms: photoelectric and ionization.
  • photoelectric sensor technology relies on an electric current that produces a beam of light.
  • In the photoelectric effect, electrons in the metal absorb light quanta.
  • These include ionization detectors and photoelectric detectors.
  • The crook shall be aluminum with cast aluminum ornamentation and include a photoelectric control receptacle.
British Dictionary definitions for photoelectric


of or concerned with electric or electronic effects caused by light or other electromagnetic radiation
Derived Forms
photoelectrically, adverb
photoelectricity (ˌfəʊtəʊɪlɛkˈtrɪsɪtɪ) noun
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 in Medicine

photoelectric pho·to·e·lec·tric (fō'tō-ĭ-lěk'trĭk) or pho·to·e·lec·tri·cal (-trĭ-kəl)
Of or relating to the electric effects, especially increased conductivity, caused by light.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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photoelectric in Science
Relating to or exhibiting to electrical effects upon exposure to light. For example, some photoelectric materials emit electrons called photoelectrons upon exposure to certain frequencies of light; others, such as photoresistors and phototransistors, change their electrical properties. See also photoelectric effect.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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