Meaning of photovoltaics

pho•to•vol•ta•ics

Pronunciation: (fō"tō-vōl-tā'iks), [key]
— n.
  1. a field of semiconductor technology involving the direct conversion of electromagnetic radiation as sunlight, into electricity.
  2. devices designed to perform such conversion.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.