photonegative

[ foh-tuh-neg-uh-tiv ]
/ ˌfoʊ təˈnɛg ə tɪv /

adjective Physics.

pertaining to a substance, as selenium, having a conductivity that decreases upon absorption of electromagnetic radiation.

Nearby words

  1. photomultiplier,
  2. photomural,
  3. photomyoclonus,
  4. photon,
  5. photonasty,
  6. photoneutron,
  7. photonic,
  8. photonics,
  9. photonovel,
  10. photonuclear

Origin of photonegative

First recorded in 1910–15; photo- + negative

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


British Dictionary definitions for photonegative

photonegative

/ (ˌfəʊtəʊˈnɛɡətɪv) /

adjective

physics (of a material) having an electrical conductivity that decreases with increasing illumination
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