(of a material) having an electrical conductivity that decreases with increasing illumination
photonegative in American English
(ˌfoʊtoʊˈnɛgətɪv)
adjective
Biology
responding negatively to light, as an earthworm does
photonegative in American English
(ˌfoutəˈneɡətɪv)
adjective
Physics
pertaining to a substance, as selenium, having a conductivity that decreases upon absorption of electromagnetic radiation
Word origin
[1910–15; photo- + negative]This word is first recorded in the period 1910–15. Other words that entered Englishat around the same time include: flashback, isotope, radio, spotlight, zingphoto- is a combining form meaning “light” (photobiology); also used to represent “photographic” or “photograph” in the formation of compoundwords. Other words that use the affix photo- include: photocell, photocoagulation, photolithography, photomultiplier, photorealism
Examples of 'photonegative' in a sentence
photonegative
This work describes the development and analysis of a new image-based photonegative restoration system.
W. Brent Seales, Duncan Clarke, George V. Landon 2009, 'A New Technique for the Digitization and Restoration of Deteriorated PhotographicNegatives', EURASIP Journal on Image and Video Processinghttp://dx.doi.org/10.1155/2009/217016. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)