photoelectric

adjective pho·to·elec·tric \ ˌfō-tō-i-ˈlek-trik \

Definition of photoelectric

:involving, relating to, or utilizing any of various electrical effects due to the interaction of radiation (such as light) with matter

photoelectrically

play \ˌfō-tō-i-ˈlek-tri-k(ə-)lē\ adverb

Recent Examples of photoelectric from the Web

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What Is the photoelectric Effect?

The photoelectric effect *occurs when light (or similar radiation such as X-rays) falls on a material such as a metal plate and causes it to emit electrons. The discovery of the photoelectric effect led to important new theories about matter (and to a Nobel Prize for Albert Einstein). *Photoelectric cells, *or *photocells, are used in burglar-alarm light detectors and garage-door openers (both employ a beam of light that is broken when something moves across it), and also to play soundtracks on movie film (where a light beam shines through the soundtrack encoded on the film and is "read" by the photocells).

Origin and Etymology of photoelectric

International Scientific Vocabulary


PHOTOELECTRIC Defined for English Language Learners

photoelectric

adjective

Definition of photoelectric for English Language Learners

  • : involving, relating to, or using an electric current that is controlled by light


Medical Dictionary

photoelectric

adjective pho·to·elec·tric \ ˌfōt-ō-i-ˈlek-trik \

medical Definition of photoelectric

:involving, relating to, or utilizing any of various electrical effects due to the interaction of radiation (as light) with matter

photoelectrically

play \-tri-k(ə-)lē\ adverb

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