English words: photocyclodehydrogenation to photographist

300 English words, part 78 of 213 of the words starting with P, A to Z. 13 have a page of their own.

English words photocyclodehydrogenation to photographist

photocyclodehydrogenation noun: A photochemical reaction where light causes a molecule to form a new ring structure and simultaneously lose hydrogen atoms, producing a more fused and...
photocycloreversion noun: photochemical cycloreversion
photocyte noun: A bioluminescent cell
photocytotoxic adjective: Cytotoxic only (or especially) in the presence of light.
photocytotoxicity noun: The quality or degree of being photocytotoxic.
photodamage noun: photochemical damage
photodamaged adjective: Having undergone photodamage.
photodamaging adjective: That causes photodamage.
photodarkening noun: The darkening of certain materials under the action of laser light
photodarlington noun: A Darlington amplifier having a phototransistor as input
photodeactivation noun: deactivation by light
photodecarbonylation noun: Any photoinduced reaction that leads to the removal of a carbonyl group as carbon monoxide
photodecarboxylation noun: Any photoinduced reaction that leads to the removal of a carboxyl group as carbon dioxide
photodecay noun: photochemical decay
photodecolouration noun: photochemical decolouration
photodecompose verb: To decompose by a photochemical process.
photodecomposition noun: Any photochemical reaction that results in the decomposition of a substance
photodeconjugation noun: Any photoinduced reaction of a conjugated compound leading to loss of conjugation
photodegradability noun: The quality of being photodegradable.
photodegradable adjective: Capable of being chemically broken down as the result of a photochemical reaction
photodegradation noun: Any reduction or degradation in a useful property of a material because of a chemical change as a result of absorption of light.
photodegradative adjective: Causing or relating to photodegradation.
photodegrade verb: to decompose as a result of exposure to light, especially that of the sun.
photodegraded adjective: degraded by light
photodehydrogenation noun: Dehydrogenation that is caused or catalyzed by irradiation with light (electromagnetic radiation).
photodensitometer noun: A densitometer used in photodensitometry
photodensitometric adjective: Relating to photodensitometry
photodensitometry noun: The measurement of optical density by means of a photocell that measures the loss of light transmitted through a material
photodensity noun: The optical density of an object, but especially that of tissue and bone to X-rays
photodependent adjective: dependent on the presence of light
photodepleted adjective: Modified by photodepletion
photodepletion noun: depletion mediated by light
photodepolarization noun: depolarization on exposure to light
photodepolarize verb: To cause or to undergo photodepolarization.
photodepolarizer noun: Any substance that initiates photodepolarization
photoderivative noun: Any derivative of a compound produced by a photochemical reaction
photodermatitis noun: Dermatitis caused by or aggravated by exposure to sunlight.
photodermatological adjective: Relating to photodermatology
photodermatology noun: The study of the effects of light on the skin
photodermatosis noun: dermatosis caused by or aggravated by exposure to light
photodermatotoxicity noun: Light-induced toxicity in the skin.
photodesorption noun: An increase in the desorption of a substance from an interface in the presence of light.
photodestruction noun: photobleaching
photodetachment noun: The absorption of a photon and subsequent elimination of an electron from an anion to form a neutral species.
photodetection noun: The detection of individual photons using a photodetector
photodetector noun: Any device used to detect electromagnetic radiation
photodeterioration noun: photodegradation
photodevice noun: A photodetector.
photodiagnosis noun: Diagnosis by means of visible or infrared light.
photodichroic adjective: Exhibiting photodichroism
photodichroism noun: photoinduced dichroism or birefringence
photodifference noun: Used attributively to describe a map of the electron density differences between parts of a sample that had been irradiated
photodiffusion noun: The creation of a voltage across a conductor or semiconductor by illuminating one side of it
photodimer noun: Any dimer created by photodimerization
photodimerization noun: Any photochemical dimerization reaction
photodimerized adjective: Produced by photodimerization
photodiode noun: A semiconductor two-terminal component whose electrical characteristics are light-sensitive.
photodioded adjective: Equipped with a photodiode
photodisc noun: Alternative spelling of photodisk.
photodisinfection noun: topical disinfection by means of light
photodisintegrate verb: To cause or undergo photodisintegration.
photodisintegrated adjective: Broken down by photodisintegration.
photodisintegrating adjective, verb: That causes, or undergoes photodisintegration.
photodisintegration noun /ˈfoʊ.toʊ.dɪ.sɪɾ̃.əˌɡɹeɪ.ʃən/: Any nuclear reaction, especially a nuclear fission, initiated by absorption of high-energy electromagnetic radiation such as a gamma ray.
photodisk noun: The circular area of an astronomical object that emits light
photodisrupt verb: To cause photodisruption
photodisruption noun: The use of short bursts of laser light to disrupt tissue
photodisruptive adjective: That causes photodisruption
photodissociable adjective: Capable of undergoing photodissociation.
photodissociate verb: To cause or to undergo photodissociation.
photodissociated adjective: dissociated by photodissociation
photodissociating adjective: Causing, or undergoing photodissociation
photodissociation noun: The dissociation of a molecule following the absorption of a photon
photodissociative adjective: Of or relating to photodissociation.
photodissolution noun: photochemical dissolution
photodistribution noun: The distribution of photosensitive damage to those areas of skin that receive the greatest exposure to sunlight
photodocument verb: To document with photographs.
photodocumentary noun: A collection of photographs serving as a documentary.
photodocumentation noun: Photographic documentation.
photodocumenter noun: A person or device that photodocuments
photodope verb: To dope (a semiconductor etc) by means of (laser) light.
photodoped adjective, verb: Having undergone the photodoping process.
photodoping noun: An enhanced form of doping (of semiconductors and other solids) under the influence of light
photodormancy noun: A condition where seeds do not germinate unless they are exposed to light.
photodormant adjective: Relating to, or in a state of, photodormancy.
photodosimetric adjective: Relating to photodosimetry.
photodosimetry noun: The use of a photographic film to determine the cumulative dose of ionizing radiation
photodraft noun: A piece of sheet metal containing a photographic image of an engineering design
photodrama noun: a photoplay
photodramatic adjective: Relating to, or characteristic of, photodrama.
photodramatics noun: The art of making photodramas.
photodramatist noun: A maker of photodramas.
photodrome noun: A kind of stroboscope consisting of a large wheel with spokes, which when turning very rapidly is illuminated by momentary flashes of light passing through...
photodromy noun: The movement of particles suspended in a fluid toward or away from light.
photoduplicate noun, verb: A photocopy.
photoduplicated adjective: photocopied
photoduplication noun: photocopying
photoduplicator noun: A machine for photoduplication; a photocopier.
photodynamic adjective: Of, relating to, or caused by the energy or momentum of light or other electromagnetic radiations.
photodynamic therapy noun: Synonym of photochemotherapy.
photodynamical adjective: Relating to photodynamics.
photodynamically adverb: By means of, or with regard to, photodynamics.
photodynamics noun: The study of the interaction of light with substances or living organisms
photoeccentric adjective: Relating to the light from a star partially obscured by a planet with an eccentric orbit
photoeclector noun: An eclector fitted with a light that is used to attract insects
photoecology noun: The application of aerial photography to ecology and land management
photoeffect noun: Synonym of photoelectric effect.
photoefficiency noun: The efficiency of a material in capturing incident light and converting it into useful energy
photoelastic adjective: exhibiting birefringence when stressed
photoelasticity noun: a technique for studying and measuring the stresses and strains in an object by means of mechanical birefringence
photoelastography noun: A form of elastography that uses light to visualize the stress and strain in tissue.
photoelectret noun: An electret produced when a source of illumination is removed from a photoconductor in an electric field
photoelectric adjective: Of or relating to the electric effects of electromagnetic radiation, especially the ejection of an electron from a surface by a photon.
photoelectric cell noun: A transducer that generates an electric current proportional to the light intensity.
photoelectric effect noun: The emission of electrons from the surface of a material following the absorption of electromagnetic radiation.
photoelectrical adjective: photoelectric
photoelectrically adverb: By means of photoelectricity
photoelectricity noun: Electricity produced by the photoelectric effect.
photoelectroactive adjective: Exhibiting, or relating to, photoelectroactivity.
photoelectroactivity noun: electroactivity upon irradiation with light
photoelectrocatalysis noun: photoelectric catalysis
photoelectrocatalyst noun: A photoelectric catalyst
photoelectrocatalytic adjective: Relating to a photoelectrocatalyst or to photoelectrocatalysis
photoelectrocatalytically adverb: By means of photoelectrocatalysis.
photoelectrochemical adjective: Of or pertaining to photoelectrochemistry.
photoelectrochemically adverb: In terms of, or by means of, photoelectrochemistry.
photoelectrochemist noun: One who carries out photoelectrochemistry.
photoelectrochemistry noun: A field of study combining photochemistry and electrochemistry that studies the interaction of light with electrochemical systems
photoelectrocolorimetric adjective: Of or relating to photoelectrocolorimetry.
photoelectrocolorimetrically adverb: By means of photoelectrocolorimetry.
photoelectrocolorimetry noun: Colorimetry that analyzes color by means of photoelectric wavelengths.
photoelectrode noun: Either electrode of a photoelectric cell
photoelectroglottographic adjective: Relating to photoelectroglottography.
photoelectroglottography noun: 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 noun: An electrometer registering by photography.
photoelectrolysis noun: The use of electromagnetic radiation to effect, or to enhance, electrolysis
photoelectrolytic adjective: Describing a cell in which radiant energy causes a chemical reaction.
photoelectromagnetic adjective: of or relating to the photoelectromagnetic effect
photoelectromagnetic effect noun: The generation of an electric current in an intermetallic semiconductor in a magnetic field by the action of light.
photoelectromotive adjective: Of or relating to the electromotive force caused by photovoltaic action.
photoelectron noun: An electron ejected from the surface of a material by the photoelectric effect.
photoelectronic adjective: Describing any electronic effect or device that is affected by light.
photoelectrosynthesis noun: photoelectric synthesis
photoelectrosynthetic adjective: synthesized photoelectrically
photoelectrosythesis noun: 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 noun: An electrotype plate formed in a mould made by photographing on prepared gelatine, etc.
photoelement noun: The part of a photoelectric device that converts light energy into electricity
photoelicitation noun: The elicitation of a response to the display of a photographic image
photoelimination noun: photochemical elimination
photoemission noun: the ejection of electrons from the surface of a solid by incident electromagnetic radiation
photoemissive adjective: Of or relating to photoemission.
photoemissivity noun: The property of being photoemissive
photoemit verb: To emit by photoemission.
photoemitter noun: A material that exhibits the photoemission of electrons when illuminated
photoemulsion noun: photographic emulsion
photoencapsulate verb: To encapsulate photochemically
photoencapsulation noun: photochemical encapsulation
photoendolith noun: Any photoautotrophic endolith
photoendosomolysis noun: endosomolysis initiated by light
photoendosomolytic adjective: Relating to photoendosomolysis
photoendosymbiont noun: A photosynthetic endosymbiont
photoenergy noun: The energy of a system of photons or other wavepackets
photoengrave verb: To make a photoengraving of an image
photoengraver noun: A person who makes photoengravings.
photoengraving noun, verb: A process of transferring a photographic image onto a plate which is then etched and printed.
photoenhance verb: To enhance by means of photoenhancement.
photoenhancement noun: enhancement of photographic images, typically by digital means
photoenhancer noun: Anything that employs photoenhancement.
photoenlarger noun: A photographic enlarger
photoenolization noun: A form of phototautomerization leading to the production of enols
photoentrain verb: To entrain a circadian rhythm by means of light
photoentrainable adjective: entrainable by means of light
photoentrainment noun: The entrainment of an organism's circadian rhythm to the pattern of light and dark in its environment
photoenvironment noun: An environment that has a particular level of light
photoenzymatic adjective: Relating to, or catalysed by a photoenzyme
photoenzyme noun: Any enzyme that catalyses a photochemical reaction
photoepilepsy noun /ˌfəʊ.təʊˈɛpɪˌlɛp.si/: Photosensitive epilepsy.
photoepileptic adjective /ˌfəʊ.təʊˌɛpɪˈlɛp.tɪk/: Of, pertaining, affected by, or causing photoepilepsy.
photoepinastic adjective: Relating to photoepinasty.
photoepinasty noun: A disproportionately rapid growth of the upper surface of dorsiventral organs, such as leaves, through the stimulus of exposure to light.
photoequilibrium noun: photochemical equilibrium
photoequivalence noun: Photochemical equivalence, as described by the Stark-Einstein law.
photoessay noun: Alternative form of photo essay.
photoetch verb: To engrave, or make an engraving of, by any photomechanical process involving etching of the plate.
photoetcher noun: A person who makes photoetchings.
photoetching noun: A photolithographic etching process.
photoevaporate verb: To ionise gas and cause it to disperse.
photoevaporated adjective, verb: Subject to, or produce by photoevaporation
photoevaporating noun, verb: The process of photoevaporation
photoevaporation noun: 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 adjective: That causes photoevaporation
photoevolution noun: Synonym of photoemission.
photoevolve verb: Synonym of photoemit.
photoexchange noun: photochemical exchange
photoexcitability noun: The condition of being photoexcitable
photoexcitable adjective: excitable (able to be put into an excited state) by absorption of a photon
photoexcitation noun: The formation of an excited state by the absorption of a photon.
photoexcite verb: To excite (an electron etc.) by means of photoexcitation
photoexcited adjective, verb: (of an atom, molecule or ion) excited due to photoexcitation
photoexpose verb: To expose to light
photoexposed adjective, verb: exposed to light
photoexposure noun: exposure to light
photofabrication noun: A photographic method of manufacturing integrated circuits in which a pattern is placed over a semiconductor in an etching solution and exposed to light
photofacilitation noun: facilitation (in any of several contexts) by means of light
photofading noun: photochemical fading
photofermentation noun: fermentation that only proceeds in the presence of light; especially a process of producing hydrogen. Unlike biophotolysis in which hydrogen is produced...
photofermentative adjective: Relating to, or formed by photofermentation
photoferroelectric adjective: Of, or relating to the effect of light on ferroelectric materials.
photoferroelectric effect noun: a phenomenon observed in ferroelectric ceramics, in which light near the band-gap energy of the material has an effect on the electric field in the material
photoferroelectrics noun: The study, design and manufacture of photoferroelectric devices
photoferrotroph noun: Any photoferrotrophic organism
photoferrotrophic adjective: Relating to photoferrotrophy or to photoferrotrophs
photoferrotrophy noun: ferrotrophy by means of light
photofield noun: Used attributively to describe a form of photoemission in which an electron in a metal is excited by a photon and subsequently tunnels out of the surface
photofilm noun: Photographic film.
photofinish noun: Alternative form of photo finish.
photofinisher noun: A person, technician, or business that specializes in photofinishing.
photofinishing noun: The commercial developing and printing of photographs.
photofission noun, verb: Nuclear fission as the result of the absorption of a gamma ray or other high-energy photon.
photofit noun: An image of a person constructed out of bits of photographs of other people; an identikit.
photofitting noun: The production of a sketch of a criminal from available information, often specifically DNA.
photoflash noun: A lamp that emits a brief flash of bright light; used to take photographs in a dark environment
photoflash bomb noun: A kind of explosive ordnance dropped from an aircraft to create a bright flash of light to enable aerial photography for surveillance purposes.
photoflood noun: A lamp that produces a broad beam of continuous bright light; used to illuminate a photographic subject
photofluorogram noun: A photograph made by photofluorography
photofluorograph noun: An image produced by means of photofluorography.
photofluorographic adjective: Relating to photofluorography.
photofluorography noun: The photographic recording of fluoroscope images
photofragment noun: A fragment produced by photodissociation
photofragmentation noun: The formation of photofragments
photofrin noun: Synonym of porfimer sodium.
photofunctionalization noun: photochemical functionalization
photofunctionalize verb: To photochemically functionalize
photofunctionalized adjective, verb: photochemically functionalized
photog noun /fəˈtɒɡ/: A photographer, especially a professional one.
photogain noun: The gain (multiplication factor) of a photodetector or photomultiplier
photogalvanic adjective: Of or pertaining to the production of electricity from light
photogalvanographic adjective: Of or relating to photogalvanography.
photogalvanography noun: The art or process of making photoelectrotypes.
photoganda noun: A photograph regarded as being published or broadcast in the interest of advancing an ideological agenda.
photogastroscope noun: A device used to take photographs of the interior of the stomach.
photogate noun: A device that measures the time between events that interrupt an infra-red beam
photogating noun: gating controlled by light
photogelatin noun: gelatin, coated on a glass plate, that carries an image to be printed by the collotype process
photogen noun: A light hydrocarbon oil resembling kerosene, used as a lubricant, illuminant, etc.
photogene noun /ˈfəʊtəʊd͡ʒiːn/: A photograph.
photogenerated adjective: Generated by light (used especially of electrons).
photogeneration noun: The generation of something (especially of electrical energy) by light.
photogenesis noun: The emission of light, as by certain bacteria.
photogenetic adjective: Exhibiting, or pertaining to, photogenesis.
photogenia noun: The various photographic techniques, such as lighting, focus and framing, used to make a subject look more attractive.
photogenic adjective /ˌfəʊ.təʊˈd͡ʒɛn.ɪk/: Generated or caused by light.
photogenically adverb: In a photogenic manner.
photogenicism noun: The condition of being photogenic.
photogenicity noun: The state of being photogenic
photogenotoxic adjective: Both phototoxic and genotoxic.
photogenotoxicity noun: The condition of being photogenotoxic.
photogenous adjective: Producing light.
photogeny noun: photography
photogeologic adjective: Of, relating to, indicated by, or produced by photogeology.
photogeological adjective: Relating to photogeology.
photogeologist noun: One who carries out photogeology.
photogeology noun: The use of aerial photography to interpret geologic features
photogeomorphology noun: The use of aerial photography to interpret geologic features
photoglottographic adjective: Relating to photoglottography.
photoglottography noun: photographic glottography
photoglow noun: A photoglow tube
photoglow tube noun: A phototube in which an electric current flows when a certain illumination is reached; used as a relay
photoglycine noun: glycin
photoglyphic adjective /ˌfəʊ.təˈɡlɪf.ɪk/: Relating to the art of photoglyphy
photoglyphy noun: A kind of engraving caused by the action of light, used in the mid 19th century
photoglyptic adjective /ˌfəʊ.təˈɡlɪp.tɪk/: Alternative form of photoglyphic.
photogoniometer noun: A goniometer, used in X-ray diffraction, that detects the X-rays using a photocell.
photogram noun: A photograph made without using a camera; normally by placing an object in contact with photosensitive paper and exposing it to light.
photogrammeter noun: A phototheodolite, or a camera designed for use in photogrammetry.
photogrammetric adjective: Of or pertaining to photogrammetry.
photogrammetrical adjective: Alternative form of photogrammetric.
photogrammetrically adverb: In terms of, or by means of, photogrammetry.
photogrammetrist noun: One who carries out photogrammetry.
photogrammetry noun: The making of precise measurements from photographs.
photograph noun, verb /ˈfəʊ.təˌɡɹɑːf/: A picture created by projecting an image onto a photosensitive surface such as a chemically treated plate or film, CCD receptor, etc.
photographability noun: The quality of being photographable.
photographable adjective: Capable of being photographed
photographee noun: One who is photographed.
photographer noun /fəˈtɒɡ.ɹə.fə/: One who takes photographs, typically as an occupation.
photographeress noun: A female photographer.
photographess noun: A female photographer.
photographette noun: A female photographer.
photographic adjective /ˌfəʊtəˈɡɹæfɪk/: Pertaining to photographs or photography.
photographic artist noun: A photo artist
photographic emulsion noun: A colloid, containing light-sensitive material, that is coated onto a length of film for use in predigital photography
photographic interpretation noun: The identification, description and measurement of objects in photographs, especially in aerial photographs, for geologic, cartographic or military purposes
photographic memory noun: The ability to recall images, sounds, smells, or objects in memory with great accuracy and in seemingly unlimited volume.
photographic paper noun: Paper or card coated with a light-sensitive emulsion, typically containing silver salts.
photographic plate noun: An early form of photographic material in which the photosensitive emulsion was applied to a glass plate; latterly only used by astronomers.
photographica noun: Collectable photographic equipment.
photographical adjective: Photographic.
photographically adverb: In a photographic manner.
photographing noun, verb: The taking of a photograph.
photographist noun: One who produces photographs.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0): each word's first meaning. A word with a page of its own links to it; for the rest, this line is PlainSpell's entry. Total under P: 63,631 words, in 213 parts.