pho·to·vol·ta·ic

[foh-toh-vol-tey-ik, -vohl-]
adjective Electricity.
of or pertaining to the photovoltaic effect.

Origin:
1920–25; photo- + voltaic

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
photovoltaic (ˌfəʊtəʊvɒlˈteɪɪk) [Click for IPA pronunciation guide]
 
adj
of, concerned with, or producing electric current or voltage caused by electromagnetic radiation, esp visible light from the sun

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10
Photovoltaic is always a great word to know.
So is gobo. Does it mean:
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
a scrap or morsel of food left at a meal.
American Heritage
Science Dictionary
photovoltaic   (fō'tō-vŏl-tā'ĭk, -vōl-)  Pronunciation Key 
Capable of producing a voltage, usually through photoemission, when exposed to radiant energy, especially light. See more at photoelectriccell.">, solar cell.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Photovoltaic cells, found in solar panels, convert the sun's energy into
  electricity.
These solar cells are cheaper to make than conventional silicon photovoltaic
  panels.
The college is switching to hybrid vehicles for its fleet and is installing
  photovoltaic panels on buildings.
Existing capabilities that are expensive, such as photovoltaic solar cells,
  will become cheap enough for everyone to use.
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