the increase in the electrical conductivity of a substance, often nonmetallic, caused by the absorption of electromagnetic radiation.
Origin of photoconductivity
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the change in the electrical conductivity of certain substances, such as selenium, as a result of the absorption of electromagnetic radiation
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