Skip to content A B C D E F G H I J K L M N O P Q R S T U V W X Y Z photodesorption An increase in the desorption of a substance from an interface in the presence of light. photodestruction photobleaching photodetachment The absorption of a photon and subsequent elimination of an electron from an anion to form a neutral species. photodetection The detection of individual photons using a photodetector photodetector Any device used to detect electromagnetic radiation photodeterioration photodegradation photodevice A photodetector. photodiagnosis Diagnosis by means of visible or infrared light. photodichroic Exhibiting photodichroism photodichroism photoinduced dichroism or birefringence photodifference Used attributively to describe a map of the electron density differences between parts of a sample that had been irradiated photodiffusion The creation of a voltage across a conductor or semiconductor by illuminating one side of it photodimer Any dimer created by photodimerization photodimerization Any photochemical dimerization reaction photodimerized Produced by photodimerization photodiode A semiconductor two-terminal component whose electrical characteristics are light-sensitive. photodioded Equipped with a photodiode photodisinfection topical disinfection by means of light photodisintegrate To cause or undergo photodisintegration. photodisintegrated Broken down by photodisintegration. photodisintegrating That causes, or undergoes photodisintegration. photodisintegration Any nuclear reaction, especially a nuclear fission, initiated by absorption of high-energy electromagnetic radiation such as a gamma ray. photodisk The circular area of an astronomical object that emits light photodisrupt To cause photodisruption photodisruption The use of short bursts of laser light to disrupt tissue photodisruptive That causes photodisruption photodissociable Capable of undergoing photodissociation. photodissociate To cause or to undergo photodissociation. photodissociated dissociated by photodissociation photodissociating Causing, or undergoing photodissociation photodissociation The dissociation of a molecule following the absorption of a photon photodissociative Of or relating to photodissociation. photodissolution photochemical dissolution photodistribution The distribution of photosensitive damage to those areas of skin that receive the greatest exposure to sunlight photodocument To document with photographs. photodocumentary A collection of photographs serving as a documentary. photodocumentation Photographic documentation. photodocumenter A person or device that photodocuments photodope To dope (a semiconductor etc) by means of (laser) light. photodoped Having undergone the photodoping process. photodoping An enhanced form of doping (of semiconductors and other solids) under the influence of light photodormancy A condition where seeds do not germinate unless they are exposed to light. photodormant Relating to, or in a state of, photodormancy. photodosimetric Relating to photodosimetry. photodosimetry The use of a photographic film to determine the cumulative dose of ionizing radiation photodraft A piece of sheet metal containing a photographic image of an engineering design photodrama a photoplay photodramatic Relating to, or characteristic of, photodrama. photodramatics The art of making photodramas. photodramatist A maker of photodramas. photodrome A kind of stroboscope consisting of a large wheel with spokes, which when turned at speed is illuminated by momentary flashes of light passing through slits in a rotating disk. By adjusting the succession of flashes, the wheel can be made to appear to be motionless, or to rotate more or less slowly in either direction. photodromy The movement of particles suspended in a fluid toward or away from light. photoduplicate A photocopy. photoduplicated photocopied photoduplication photocopying photoduplicator A machine for photoduplication; a photocopier. photodynamic Of, relating to, or caused by the energy or momentum of light or other electromagnetic radiations. photodynamical Relating to photodynamics. photodynamically By means of, or with regard to, photodynamics. photodynamics The study of the interaction of light with substances or living organisms photoeccentric Relating to the light from a star partially obscured by a planet with an eccentric orbit photoeclector An eclector fitted with a light that is used to attract insects photoecology The application of aerial photography to ecology and land management photoeffect Synonym of photoelectric effect. photoefficiency The efficiency of a material in capturing incident light and converting it into useful energy photoelastic exhibiting birefringence when stressed photoelasticity a technique for studying and measuring the stresses and strains in an object by means of mechanical birefringence photoelastography A form of elastography that uses light to visualize the stress and strain in tissue. photoelectret An electret produced when a source of illumination is removed from a photoconductor in an electric field photoelectric Of or relating to the electric effects of electromagnetic radiation, especially the ejection of an electron from a surface by a photon. photoelectrical photoelectric photoelectrically By means of photoelectricity photoelectricity Electricity produced by the photoelectric effect. photoelectroactive Exhibiting, or relating to, photoelectroactivity. photoelectroactivity electroactivity upon irradiation with light photoelectrocatalysis photoelectric catalysis photoelectrocatalyst A photoelectric catalyst photoelectrocatalytic Relating to a photoelectrocatalyst or to photoelectrocatalysis photoelectrocatalytically By means of photoelectrocatalysis. photoelectrochemical Of or pertaining to photoelectrochemistry. photoelectrochemically In terms of, or by means of, photoelectrochemistry. photoelectrochemist One who carries out photoelectrochemistry. photoelectrochemistry A field of study combining photochemistry and electrochemistry that studies the interaction of light with electrochemical systems photoelectrocolorimetric Of or relating to photoelectrocolorimetry. photoelectrocolorimetrically By means of photoelectrocolorimetry. photoelectrocolorimetry Colorimetry that analyzes color by means of photoelectric wavelengths. photoelectrode Either electrode of a photoelectric cell photoelectroglottographic Relating to photoelectroglottography. photoelectroglottography Examination and recording of the movement of the vocal folds by means of shining a beam of light across it and noting changes in the quality of light. photoelectrograph An electrometer registering by photography. photoelectrolysis The use of electromagnetic radiation to effect, or to enhance, electrolysis photoelectrolytic Describing a cell in which radiant energy causes a chemical reaction. photoelectromagnetic of or relating to the photoelectromagnetic effect photoelectromotive Of or relating to the electromotive force caused by photovoltaic action. photoelectron An electron ejected from the surface of a material by the photoelectric effect. photoelectronic Describing any electronic effect or device that is affected by light. photoelectrosynthesis photoelectric synthesis photoelectrosynthetic synthesized photoelectrically photoelectrosythesis a technology that uses solar energy to drive chemical reactions, typically creating valuable fuel or chemicals from raw materials like water or carbon dioxide photoelectrotype An electrotype plate formed in a mould made by photographing on prepared gelatine, etc. photoelement The part of a photoelectric device that converts light energy into electricity photoelicitation The elicitation of a response to the display of a photographic image photoelimination photochemical elimination photoemission the ejection of electrons from the surface of a solid by incident electromagnetic radiation photoemissive Of or relating to photoemission. photoemissivity The property of being photoemissive photoemit To emit by photoemission. photoemitter A material that exhibits the photoemission of electrons when illuminated photoemulsion photographic emulsion photoencapsulate To encapsulate photochemically photoencapsulation photochemical encapsulation photoendolith Any photoautotrophic endolith photoendosomolysis endosomolysis initiated by light photoendosomolytic Relating to photoendosomolysis photoendosymbiont A photosynthetic endosymbiont photoenergy The energy of a system of photons or other wavepackets photoengrave To make a photoengraving of an image photoengraver A person who makes photoengravings. photoengraving A process of transferring a photographic image onto a plate which is then etched and printed. photoenhance To enhance by means of photoenhancement. photoenhancement enhancement of photographic images, typically by digital means photoenhancer Anything that employs photoenhancement. photoenlarger A photographic enlarger photoenolization A form of phototautomerization leading to the production of enols photoentrain To entrain a circadian rhythm by means of light photoentrainable entrainable by means of light photoentrainment The entrainment of an organism's circadian rhythm to the pattern of light and dark in its environment photoenvironment An environment that has a particular level of light photoenzymatic Relating to, or catalysed by a photoenzyme photoenzyme Any enzyme that catalyses a photochemical reaction photoepilepsy Photosensitive epilepsy. photoepileptic Of, pertaining, affected by, or causing photoepilepsy. photoepinastic Relating to photoepinasty. photoepinasty epinasty (downward curvature of leaves) due to the stimulus of exposure to light. photoequilibrium photochemical equilibrium photoequivalence Photochemical equivalence, as described by the Stark-Einstein law. photoetch To engrave, or make an engraving of, by any photomechanical process involving etching of the plate. photoetcher A person who makes photoetchings. photoetching A photolithographic etching process. photoevaporate To ionise gas and cause it to disperse. photoevaporated Subject to, or produce by photoevaporation photoevaporating The process of photoevaporation photoevaporation The removal of the atmosphere of a planet or removal of a protoplanetary disk by high-energy photons from its sun or a nearby hot star photoevaporative That causes photoevaporation photoevolution Synonym of photoemission. photoevolve Synonym of photoemit. photoexchange photochemical exchange photoexcitability The condition of being photoexcitable photoexcitable excitable (able to be put into an excited state) by absorption of a photon photoexcitation The formation of an excited state by the absorption of a photon.