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 photoplay A theatrical play that has been filmed for showing as a movie. photoplayer A film actor. photoplaywright A screenwriter for movies. photoplethysmogram A recording made by a photoplethysmograph photoplethysmograph A plethysmograph that uses illumination of the skin in order to measures changes in light absorption photoplethysmographic Relating to photoplethysmography. photoplethysmography The recording or study of photoplethysmographs photoplotter An electromechanical-optical machine that exposes a latent image on a medium by means of a computer-controlled light source. photopolarimeter A combination of a polarimeter and a photometer photopolarimetric Of or pertaining to photopolarimetry photopollution Light pollution. photopolymer Any polymer that reacts to light with a physical or chemical change, used especially for teeth fillings photopolymeric Being or relating to a photopolymer. photopolymerizable Able to undergo photopolymerization photopolymerization Any polymerization reaction that requires light for the propagation step. photopolymerize To subject to photopolymerization. photopolymerizing That aids photopolymerization photoporate To modify a membrane by means of photoporation photoporation The process of using light to create pores in a cell membrane photoportrait photo portrait; an artfully taken photograph photopositive having a positive phototropic or phototactic response; attracted by light photopositively In a photopositive manner photoprecipitate To cause, or to undergo photoprecipitation photoprecipitated precipitated by means of photoprecipitation photoprecipitation precipitation caused by light photopreference preference for a particular level or colour of light photoprevention prevention (of some undesired effect) by means of a form of light photoprint Any print made by a photomechanical process. photoprinter A device for producing photoprints. photoprobe A photoaffinity labeling reagent photoprocess Any printing process that involves photography photoprocessing The processing (manipulation) of photographic images. photoproduce To produce by means of photoproduction. photoproduced produced by light, especially by photochemical action. photoproduct Any product of a photochemical reaction. photoproduction The production of a molecular species (e.g. a radical or ion) by means of light photoprotect To have a photoprotective effect upon. photoprotectant A substance with photoprotective properties. photoprotection The function, in plants that are adapted to high levels of sunlight, that protects the centres of photosynthesis from damage by excess light, normally by the use of carotenoid pigments photoprotective Of or pertaining to photoprotection photoprotector A photoprotective substance photoprotein Any of several proteins that generate light when oxidized, normally without the aid of an enzyme catalyst photoproton Any proton produced in a photonuclear reaction photoprotoporphyrin A photoisomer of a protoporphyrin photopsia The presence of perceived flashes of light. photopsin Any of a class of photoreceptor proteins present in the cones of the retina. photopsy photopsia photoptarmosis Photic sneeze reflex. photopulse A short pulse of light photopyroelectric Describing any optical system that uses a pyroelectric detector or imaging system photopyrone The ketone 3-hexyl-4-hydroxy-6-(2-methylpropyl)pyran-2-one (and related compounds) that at as quorum sensing signals in Photorhabdus photoquadrat A quadrat that is photographed for later analysis of species content photoradar A radar-based technology used in speed cameras. photoradio An early facsimile technology for transmitting documents by radio. photoradiogram An image produced by photoradiography. photoradiograph An image produced by photoradiography. photoradiographic Relating to photoradiography photoradiography A form of radiography that uses visible light photoradiometer A device that is used to measure the penetration power of ionizing radiation photoreact To undergo a photoreaction. photoreaction a photochemical reaction photoreactivability The condition of being photoreactivable. photoreactivable Capable of undergoing photoreactivation. photoreactivate To cause or to undergo photoreactivation. photoreactivated reactivated by means of photoreactivation photoreactivating That produces photoreactivation photoreactivation reactivation by light photoreactive that participates in, or initiates a photoreaction photoreactivity The condition of being photoreactive photoreactor Any vessel in which a photochemical reaction takes place photoreagent Any photochemical reagent photoreal Exhibiting photorealism. photorealism An extremely realistic style distinguished by paintings, drawings, etc. that are nearly indistinguishable from photographs, frequently produced by tracing and emulating an original photograph. photorealist An artist who works in photorealism. photorealistic Of or pertaining to photorealism. photorearrangement Any photoisomerization reaction that leads to changes in the arrangement of atoms in a molecule photoreceiver photodetector photoreception The absorption of light energy by plants and animals, and its utilization for biologically important purposes photoreceptive Absorbing and using light, especially for sensory purposes photoreceptor A specialized neuron or other structure able to detect and react to light. photoreceptoral Relating to photoreceptors photorecombination recombination influenced by light photoreconfigurable reconfigurable by the action of light photoreconnaissance The making of aerial photographs as a means of military reconnaissance, especially of potential targets. photorecovery The recovery / restoration of DNA in skin damaged by exposure to light photoredox Relating to a redox reaction that involves light photoreduce To cause or undergo photoreduction. photoreducibility The condition of being photoreducible. photoreducible Capable of undergoing photoreduction. photoreduction The addition of an electron to a photoexcited species. photoreductive Relating to photoreduction. photoreflectance reflectance that varies according to the incident light level photoreflexive That reflects light photorefraction A nonlinear optical effect seen in certain crystals and other materials that respond to light by altering their refractive index. photorefractive of or relating to a change in refractive index in the presence of light photorefractively In a photorefractive way. photorefractor A device that carries out photorefraction photorefractoriness Quality of being photorefractory. photorefractory photorefractive photoregenerate To regenerate photochemically photoregeneration photochemical regeneration photoregime A period during which an organism is subjected to a particular regime of light and dark photoregulate To regulate photochemically photoregulation photochemical regulation photoregulative Relating to, or causing photoregulation photoregulator A photochemical regulator photoregulatory Relating to photoregulation or a photoregulator photorejuvenation A skin treatment that uses intense pulsed light or other thermal or chemical methods to treat some skin conditions and remove wrinkles arising from photoaging. photoreleasable releasable by the action of light photorelease The photoinduced release of one compound from another photoreleased released by the action of light photorelief A photograph having relief information added. photorelocation relocation (typically of chloroplasts) in response to light photoremovable That can be photoreleased photorepair photochemical repair (of DNA) photorepaired repaired photochemically photoreport A news report illustrated with photographs. photoreportage Synonym of photojournalism. photoreproduce To photocopy. photoreproduction A photocopy. photoresist A light-sensitive film used in photolithography and photoengraving. photoresistance resistance of a material that varies with the amount of incident light photoresistant Exhibiting photoresistance. photoresistive photoconductive photoresistor An electronic component whose resistance is inversely proportional to the intensity of incident light. photorespiration Light-dependent release of carbon dioxide and uptake of oxygen in photosynthetic organisms as an unavoidable side reaction of photosynthesis. photorespiratory Relating to photorespiration. photorespire To undergo photorespiration photorespiring photorespiration photorespirometer A device that measures respiration as a function of light level photorespirometry The analysis of respiration as a function of light level photoresponse Any measurable chemical or biological response to light photoresponsive That responds to light photoresponsiveness The condition of being photoresponsive photoresponsivity The quality of being photoresponsive. photoretinoscope Synonym of retinoscope, but especially one that uses a particular form of light (such as infrared) photoretinoscopy photorefractive retinoscopy photoreversal photoreactivation photoreversed Modified by photoreversal photoreversibility The condition of being photoreversible photoreversible Describing any compound or system that can exist in two forms, and can be changed from one to the other by the appropriate influence of light photoreversion photochemical reversion photorheological Describing any rheological property that can be modified by exposure to light. photorhodopsin The initial compound formed when rhodopsin is irradiated with light; it immediately produces bathorhodopsin photosampling Sampling by means of photographs. photosaturation photochemical or photolytic saturation (a situation in which more light has no additional effect) photoscanner A device which photographically records the gamma rays passing through tissue that has been injected with a radioactive material. photoscience Any branch of physics, chemistry or biology concerned with the actions of light. photoscope Any of various instruments employed for the observation of light, luminous effects, or photographs. photoscopic Of or pertaining to the photoscope or its uses.