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 photomicrographically By means of photomicrography. photomicrography Photography using a microscope. photomicrometer A micrometer used in photomicrometry photomicrometric Relating to photomicrometry photomicrometry micrometry using light (typically from a laser) photomicroscope An instrument (microscope plus camera) that is used for making photomicrographs. photomicroscopic Relating to photomicroscopy. photomicroscopically By means of photomicroscopy. photomicroscopy The use of a photomicroscope. photomicrosensor A microsensor that responds to light photomineralization photochemical mineralization photomixotrophic Synonym of mixotrophic. photomixotrophically Synonym of mixotrophically. photomode A feature that allows players to capture virtual photographs or snapshots by adjusting an in-game camera, as distinguished from screenshots which use an external mechanic. photomodification photochemical modification photomoding The use or application of photomode. photomodulation modulation by means of light photomolecular Of or relating to the molecular effects of electromagnetic radiation photomontage A composite image combining two or more photographs. photomorph A photomanip, generally featuring a fictional creature as the edited subject. photomorphogenesis the regulatory effect of light on the growth, development and differentiation of plant cells, tissues and organs photomorphogenetic Related to photomorphogenesis photomorphogenetically In terms of, or by means of, photomorphogenesis. photomorphogenic Of or relating to photomorphogenesis. photomorphological Relating to photomorphology photomorphology Synonym of photomorphogenesis. photomorphosis Mechanomorphosis caused by light. photomosaic A composite image made of individual photographs, normally of the same shape and size, placed together in order to show a panoramic view etc. photomotile motile in the presence of light photomotility The condition of being photomotile photomotor Relating to movement in response to light photomovement Synonym of phototaxis. photomultiplication The process performed by a photomultiplier. photomultiplier A device, normally in the form of a tube, that uses a photocathode to convert photons into photoelectrons which are then amplified. photomural A large photograph (or series of photographs) used as a wall decoration. photomuralist An artist who creates photomurals. photomutagenicity The state or condition of being photomutagenic. photomyoclonic Relating to photomyoclonus. photomyoclonus Myoclonus triggered by light impinging on the eye. photomyogenic photomyoclonic photon The quantum of light and other electromagnetic energy, regarded as a discrete particle having zero rest mass, no electric charge, and an indefinitely long lifetime. It is a gauge boson. photonastic in response to light (and not just in the direction of the light source) photonasty A nastic response to a change in light levels. photonecrosis necrosis as a result of exposure to light photonegative having a negative phototropic or phototactic response; repelled by light photonephelometer A nephelometer that uses a photocell to measure the intensity of transmitted light. photonephograph A nephoscope registering by photography, typically consisting of a pair of cameras used simultaneously. photoneuroendocrine Relating to the effect of light on the neuroendocrine systems photoneutral Unaffected by the action of light photoneutrino A neutrino that is produced (along with an antineutrino) when a high-energy photon collides with an electron photoneutron A free neutron produced by a photonuclear reaction photonic of, or relating to photons or to photonics photonically By means of photonics. photonics The science and technology of generating and controlling photons, particularly in the visible and near infrared light spectrum. photonlike Having some characteristics of a photon. photonovel A story illustrated with photographs and text captions. photonuclear Of or relating to any nuclear reaction involving a photon. photoorganoheterotroph An organoheterotroph that also obtains energy from light photoorganoheterotrophic Relating to photoorganoheterotrophs photoorganoheterotrophically In a photoorganoheterotrophic manner photoorganotroph a simple organism, such as a protozoan, that derives its energy from photosynthesis and organic compounds photoorganotrophic Relating to photoorganotrophs photoorganotrophically In a photoorganotrophic manner photoorientation The process of aligning molecules or living organisms using light. photooxidant The product of a photooxidation reaction photooxidase photochemical oxidase photooxidation The loss of an electron from a photoexcited species. photooxidative That causes, or undergoes photooxidation. photooxidizable photochemically oxidizable photooxidization Synonym of photooxidation. photooxidize To oxidize photochemically photooxidizer A device used in photooxidation photooxidizing That leads to photooxidation photooxygenation Any oxygenation reaction that takes place in the presence of light. photopair A pair of photons, produced simultaneously, typically moving in opposite directions photopanorama A panoramic photomontage photopaper Photographic paper; paper coated with light-sensitive chemicals, used for making photographic prints on traditional film cameras. photoparoxysmal Describing an abnormal response to flashing light characterised by spikes of cortical activity photopathology The branch of pathology dealing with disease caused by exposure to light photopattern An etching produced by photopatterning. photopatternable Suitable for photopatterning. photopatterned In which a pattern has been etched by light photopatterning The production of a photochemical etching on the surface of a semiconductor photopeak That part of the gamma ray spectrum of a material caused by the photoelectric effect photopenia An area of less-than-normal density on an x-ray image or similar scan photopenic Relating to photopenia photopentode a pentode whose electrical characteristics are light-sensitive photopeptide Any photoactivatable peptide photoperception The perception of light (by plants) photoperceptive Relating to photoperception photoperimeter An instrument for measuring the extent of the field of vision. photoperiod The normal duration of natural daylight experienced by an organism; daylength. photoperiodic Of, pertaining to, or exhibiting photoperiodism photoperiodical photoperiodic photoperiodically In a photoperiodic manner photoperiodicity The condition, or extent, of being photoperiodic photoperiodism The growth, development and other responses of plants and animals according to the length of day and/or night. photoperoxidation peroxidation catalysed by light photoperturbation The disruption to the activity of a physical or chemical system by light photophane A historical photographic process formerly used for large-volume mechanical printing. photopharmacological Relating to photopharmacology photopharmacology photochemical pharmacology photophase The period of light during a day-night cycle. photophasic Relating to the photophase. photopheresis A form of apheresis and photodynamic therapy in which blood is treated with photoactivable drugs which are then activated with ultraviolet light. photophil The phase of a two-phase circadian rhythm associated with light and expenditure of energy. photophile Any organism that thrives in bright sunlight. photophilia A tendency to thrive in bright sunlight. photophilic That thrives in bright sunlight photophilous Thriving in the presence of light. photophily Synonym of photophilia photophobe One who has an aversion to light. photophobia Excessive sensitivity to light and the aversion to bright light; abnormal fear of light. photophobic That thrives at a relatively low light level. photophobically In a photophobic manner photophobicity Quality or degree of being photophobic. photophobotactic Relating to photophobotaxis photophobotaxis phobotaxis in response to light photophobous That thrives at a relatively low light level; photophobic. photophone A device that transmitted sound on a beam of light. photophonic Of or pertaining to the photophone. photophonophobia Excessive sensitivity to light and sound; abnormal fear of light and sound. photophony The art or practice of using the photophone. photophore A light-emitting organ, found in some fish and other marine animals. photophoresis The slow drift of fine particles suspended in a gas away from a strong light source photophoretic Of or pertaining to photophoresis photophosphorescence Phosphorescence induced by the presence of light. photophosphorescent Of relating to photophosphorescence. photophosphorylase An enzyme that is involved in the photosynthetic phosphorylation of ATP. photophosphorylate To undergo photophosphorylation. photophosphorylation photosynthetic phosphorylation photophygous That thrives in shade photophysical Describing photoexcitation and any subsequent process that does not involve any chemical change photophysicist A physicist whose speciality is photophysics photophysics The physics of light, especially of its interaction with matter. photophysiological Relating to photophysiology photophysiologically In a photophysiological manner photophysiology The physiology of processes (such as photosynthesis) that involve light photophyte Any epiphyte growing in a well-lit environment photophytic Of or relating to photophytes. photopia Normal daylight vision, in which the cone cells are used. photopic Used in normal daylight. photopiezoelectric Of or relating to the effect of light on piezoelectric materials. photopiezoelectrics The study, design and manufacture of photopiezoelectric devices photopigment Any pigment that is unstable in the presence of light; used especially of the chromophore pigments in the rod cells and cone cells of the eye photopile solar cell, solar battery photopion A pion generated by the action of light photoplanimetry photographic planimetry photoplasmonic Relating to the interaction of light on plasmons photoplate A photographic plate.