English words: photo pack to photocycloaddition

300 English words, part 77 of 213 of the words starting with P, A to Z. 16 have a page of their own.

English words photo pack to photocycloaddition

photo pack noun: A collection of photographs to be shown sequentially to a witness, conducted by a police officer or detective who does not know the identity of the suspect.
photo paper noun: Alternative form of photopaper.
photo-portrait noun: Alternative form of photoportrait.
photo-realism noun: Alternative form of photorealism.
photo-romance noun: A romantic story illustrated with sequential photographs in the style of a comic strip, published in magazines etc.
photo shoot noun, verb: A session in which a photographer takes shots of an individual or group.
photo-voltaic adjective: Alternative spelling of photovoltaic.
photoabatement noun: photochemical abatement
photoablated adjective: ablated by photoablation
photoablation noun: The selective destruction of tissue by light, normally by means of a laser
photoabsorbance noun: The effect of (varying intensities of) light on the absorbance of a material
photoabsorbent adjective: Exhibiting photoabsorption.
photoabsorber noun: Any material that absorbs light, or reduces its energy
photoabsorption noun: A situation in which all of the energy of a photon is transferred to an atom or molecule
photoacceptor noun: A pigment that accepts a photon as the first stage in a photochemical reaction sequence
photoacclimate verb: To acclimate to a particular light environment
photoacclimation noun: acclimation to a particular light environment
photoacclimational adjective: Relating to photoacclimation
photoacclimative adjective: Relating to, or producing photoacclimation
photoacclimatory adjective: Relating to photoacclimation
photoaccumulation noun: accumulation (of cells) in the presence of light (typically as part of a circadian rhythm)
photoacid noun: Any compound converted into a strong acid by photolysis.
photoacoustic adjective: of, or relating to photoacoustics
photoacoustically adverb: In a photoacoustic way.
photoacoustics noun: The emission of sound from a material illuminated by a modulated light source
photoactinic adjective: photochemical
photoactivable adjective: photoactivatable
photoactivatable adjective: That is able to be activated by light
photoactivate verb: To activate by means of photoactivation
photoactivated adjective: activated by light
photoactivating adjective, verb: That causes photoactivation
photoactivation noun: The absorption of energy from a photon in raising a molecule (or chromophore) from the ground state; especially the first stage of photosynthesis in which...
photoactive adjective: Able to convert the energy of light into electricity via photoelectricity
photoactivity noun: The condition of being photoactive
photoadaptation noun: adaptation of an organism to the changing amount of light in its environment
photoadaptational adjective: Relating to photoadaptation
photoadapted adjective: adapted by photoadaptation
photoadaptive adjective: Relating to, or undergoing photoadaptation
photoaddition noun: Any bimolecular addition reaction that takes place under the influence of light
photoadduct noun: A photochemical adduct
photoadsorption noun: An increase in the adsorption of a substance at an interface in the presence of light.
photoaffinity noun: the photoexcitation of a molecular entity (normally associated with a biomolecule) in order to attach a label
photoaffinity labeling noun: A technique in which a molecular label may be reversibly bound to a biological macromolecule, the attachment being made or broken photochemically
photoaffinity labelling noun: Alternative spelling of photoaffinity labeling.
photoaged adjective: Having undergone photoaging.
photoageing noun: Alternative form of photoaging.
photoaging noun: The damaging effect of prolonged exposure to sunlight on the skin, especially wrinkling, discoloration and susceptibility to cancer
photoagonism noun: photochemical agonism
photoalgraphy noun: Synonym of algraphy.
photoalidade noun: A surveying instrument used to plot lines and measure directions between terrestrial features from photographs
photoaligned adjective: aligned by means of photoalignment
photoalignment noun: The light-induced alignment of certain liquid crystals.
photoallergen noun: A substance that generates an allergic response in the presence of light
photoallergenic adjective: Relating to, or functioning as a photoallergen
photoallergenicity noun: The condition of being photoallergenic
photoallergic adjective: Showing an allergic reaction only after exposure to light
photoallergy noun: An allergy that is activated by light.
photoammonification noun: photochemical ammonification
photoamplifier noun: A photographic amplifier
photoanaerobe noun: Any photoautotrophic anaerobe
photoangiolysis noun: angiolysis by means of laser light
photoangiolytic adjective: Relating to photoangiolysis.
photoangioplasty noun: photodynamic treatment of diseased arteries
photoannulation noun: photochemical annulation
photoanode noun: The anode of a photoelectric cell.
photoanodic adjective: Relating to a photoanode.
photoantenna noun: The structure, in a flavoprotein etc, that interacts with light
photoantigen noun: A substance that produces an immune response in the presence of light
photoantimicrobial noun: An antimicrobial that is activated by the presence of light
photoapparatus noun: Synonym of photo camera.
photoaquation noun: photochemical aquation
photoartist noun: Alternative spelling of photo artist.
photoassimilate noun, verb: Any compound formed by assimilation of others under the action of light; especially such carbohydrates that are formed by photosynthesis
photoassimilation noun: The process of photoassimilating.
photoassimilatory adjective: Relating to, or causing photoassimilation
photoassisted adjective: Describing catalysis in which the catalyst is formed by the absorption of light
photoassociate verb: To associate atoms by means of photoassociation
photoassociated adjective: associated through photoassociation
photoassociation noun: The association of two atoms, under the influence of laser light, to form an excited diatomic molecule.
photoassociative adjective: Of, pertaining to, or resulting from photoassociation
photoattraction noun: photochemical attraction
photoautotroph noun: an organism, such as all green plants, that can synthesize its own food from inorganic material using light as a source of energy
photoautotrophic adjective: Relating to a photoautotroph or to photoautotrophism
photoautotrophically adverb: In a photoautotrophic manner
photoautotrophism noun: autotrophism that uses light as a source of energy
photoautotrophy noun: The condition of being a photoautotroph.
photoaversion noun: aversion to (bright) light
photoaversive adjective: Relating to photoaversion
photoavoidance noun: avoidance of exposure to light
photobacterial adjective: Of or pertaining to photobacteria
photobactericidal adjective: That kills photobacteria
photobacteriosis noun: infection by photobacteria
photobacterium noun: Any of the genus Photobacterium of bioluminescent bacteria.
photobank noun: A collection of photographs that can be licensed for use elsewhere.
photobaric adjective: Relating to the production of a photoacoustic signal by photosynthetic oxygen evolution.
photobash verb: To compose a digital image from multiple assets, such as photos and 3D models, with artistic interpretation to modify and blend them together seamlessly.
photobathic adjective: photic
photobeam noun: A beam of light whose interruption triggers a warning or a mechanism (such as a door).
photobehavior noun: A behavior in response to light.
photobehavioral adjective: Relating to photobehavior.
photobehavioural adjective: Alternative form of photobehavioral.
photobiliprotein noun: Synonym of biliprotein.
photobiochemical adjective: Relating to photobiochemistry
photobiochemistry noun: biochemistry mediated by light
photobiography noun: A biography illustrated with, or comprising, photographs.
photobiologic adjective: Synonym of photobiological.
photobiological adjective: Of or pertaining to photobiology.
photobiologically adverb: By means of, or in terms of, photobiology.
photobiologist noun: A biologist whose speciality is photobiology
photobiology noun: The study of the effects of light on living organisms, and on biological processes
photobiolysis noun: biolysis initiated by light
photobiomass noun: photochemical biomass
photobiomodulation noun: Any of several therapeutic techniques that employ low-level laser or LED light to relieve pain or to heal wounds
photobiomodulatory adjective: Relating to photobiomodulation
photobionic adjective: Relating to photoelectric interactions in biological systems
photobiont noun /ˌfəʊ.təʊˈbaɪ.ɒnt/: A photosynthetic symbiont, especially those in symbiosis with fungi in lichen.
photobiophysical adjective: Of or pertaining to photobiophysics
photobiophysics noun: The branch of biophysics that deals with the interaction of light with biological systems
photobioreactor noun: A bioreactor in which photofermentation takes place.
photobiostimulation noun: biostimulation by means of light
photobiosynthesis noun: biosynthesis that is induced or regulated by light
photobiosynthetic adjective: Relating to photobiosynthesis.
photobiotechnology noun: photochemical biotechnology (typically employing photosynthesis)
photobiotic adjective: Dependent on light for life and growth.
photobiotin noun: A photoactivatable derivative of biotin used in biochemical research
photoblank noun: The blank surface on which a photomask can be created.
photoblastic adjective: Of a seed: having its germination affected by light, either positively or negatively.
photobleach verb: To become less absorbent, reflective or fluorescent upon exposure to light.
photobleachable adjective: Able to be photobleached
photobleached adjective, verb: bleached or faded by exposure to light
photobleaching noun, verb: The destruction of a photochemical fluorescence by high-intensity light
photoblinking noun: Alternating fluorescence and photobleaching
photoblocker noun: A substance that stops light.
photoblog noun: A type of blog designed primarily to showcase photographs.
photoblogger noun: One who publishes a photoblog.
photoblogging noun: The use of a blog to showcase photographs.
photoboard noun: A large photograph mounted on a board used for display purposes.
photobomb noun, verb /ˈfəʊtəʊˌbɒm/: To unexpectedly appear in a photograph, especially so as to ruin the picture.
photobomber noun: One who photobombs.
photobombing noun, verb: The practice or phenomenon of making an unexpected appearance in a photograph, especially with the deliberate intention of ruining it.
photobook noun: A book of photographs, often by a single photographer.
photobooth noun: Alternative form of photo booth.
photocage noun: Any of several molecular species that can be activated by light; they are used especially in biochemistry to attach a molecule to a biologically active...
photocaged adjective: Fitted with a photocage
photocaging noun: The construction of a photocage
photocall noun: A gathering of theatrical performers for the purpose of being photographed.
photocamera noun: Alternative form of photo camera.
photocapacitance noun: The change in capacitance caused by light absorption.
photocapture verb: To select and then produce a still image from a movie
photocarcinogen noun: Any substance that becomes a carcinogen on exposure to light.
photocarcinogenesis noun: The creation of cancer cells by the action of light
photocarcinogenic adjective: Becoming a carcinogen on exposure to light.
photocarcinogenicity noun: The state or condition of being photocarcinogenic.
photocard noun: A card bearing a photograph, often a photograph of the cardholder for identification purposes.
photocarotenogenesis noun: The biosynthesis of carotenes under the influence of light
photocarrier noun: A photoexcited electrical carrier in a semiconductor.
photocascade noun: A photochemical cascade (series of reactions)
photocatalysed adjective: Alternative spelling of photocatalyzed.
photocatalyser noun: Alternative form of photocatalyzer.
photocatalysis noun: catalysis by a photocatalyst
photocatalyst noun: A substance that absorbs light and, in doing so, catalyzes a reaction.
photocatalytic adjective: Of, pertaining to, or obtained by photocatalysis.
photocatalytically adverb: In a photocatalytic manner
photocatalyze verb: To subject to photocatalysis.
photocatalyzed adjective, verb: catalyzed by the use of a photocatalyst
photocatalyzer noun: Synonym of photocatalyst.
photocathode noun: A cathode that emits electrons when exposed to light.
photocathodic adjective: Relating to a photocathode.
photocell noun: A photoelectric cell.
photocenter noun: The centre of light production of a dispersed source
photocentre noun: Alternative form of photocenter.
photocentric adjective: Relating to a photocentre
photoception noun: The perception of light
photoceptive adjective: Relating to photoception
photoceptor noun: photoreceptor
photoceramic adjective, noun: A photograph reproduced upon a ceramic surface.
photoceramics noun: The art or process of decorating pottery with photographically prepared designs.
photoceramist noun: One who produces photoceramics.
photocharge verb: To record a book loan from a library by using a machine (a photocharger) to photograph the borrower's library card and information about the book in card form.
photocharger noun: A machine for photocharging.
photochemic adjective: photochemical
photochemical adjective, noun: Of, relating to, or produced by photochemistry or by photochemical reactions.
photochemical reaction noun: Any chemical reaction initiated by the absorption of electromagnetic radiation to form an excited state
photochemical smog noun: Air pollution caused by photochemical reactions involving hydrocarbons, nitrogen oxides and other pollutants, especially in still air over cities.
photochemically adverb: By means of, or in terms of, photochemistry.
photochemist noun: A chemist who works in photochemistry
photochemistry noun: The study of photochemical reactions.
photochemopreventive adjective: That prevents photochemical damage to the body (by means of a dietary supplement).
photochemoprotective adjective: photochemically chemoprotective
photochemotherapeutic adjective: Of or pertaining to photochemotherapy.
photochemotherapy noun: Chemotherapy with the use of a photosensitizing agent and exposure to light.
photochirogenesis noun: The photochemical induction of molecular chirality.
photochlorination noun: photochemical chlorination
photocholesterol noun: An analogue of cholesterol in which the 5-6 double bond has been replaced by a photoactivatable diazirine group
photochop noun, verb: To convert, by chopping, a DC (or slowly varying AC) input signal into a higher frequency signal.
photochopper noun: An optoelectronic device that converts a DC input signal into a higher frequency signal.
photochrom noun: A colorized image produced from black-and-white photographic negatives via the direct photographic transfer of a negative onto lithographic printing plates.
photochromatic adjective: Pertaining to or exhibiting photochromism.
photochromatography noun: A form of chromatography in which isotopically-labelled compounds may be separated by illumination at a wavelength that will excite any specific isotope
photochrome noun: Alternative form of photochrom.
photochromic adjective: Of, related to, or produced by photochromism
photochromically adverb: in a photochromic manner
photochromics noun: The study of photochromism.
photochromism noun: The reversible transformation of the optical properties of a material when exposed to electromagnetic radiation, especially the reversible darkening of a...
photochromogen noun: A microorganism (especially a mycobacterium) whose pigmentation develops following exposure to light.
photochromogenic adjective: Of or pertaining to a photochromogen.
photochromogenicity noun: The quality of being photochromogenic.
photochromography noun: The art or process of printing color photographs.
photochromoscope noun: A device for giving shifting effects of color to a photograph. The unmounted print, made translucent, is illuminated from behind with colored light.
photochromotype noun: A coloured print made by photomechanical means.
photochromotypy noun: The art of making photochromotypes.
photochromy noun: photochromism
photochronograph noun: An instrument for recording very short intervals of time. The record is made by the power of a magnetic field, due to an electric signaling current, to turn...
photochronographic adjective: Relating to photochronography.
photochronography noun: The art of recording or measuring intervals of time with a photochronograph.
photocleavable adjective: cleavable by light
photocleavage noun: The cleavage of a bond by photolysis.
photocleave verb: To cleave a bond by photolysis
photocleaved adjective, verb: cleaved by photolysis
photoclinometer noun: Any of several directional surveying instruments which record photographically the direction and magnitude of well deviations from the vertical.
photoclinometry noun: The estimation of slope information by the analysis of brightness distribution in a photograph of a geologic surface (such as a lunar crater)
photocoagulate verb: To cause or to undergo photocoagulation
photocoagulation noun: A surgical procedure in which a tumour, or diseased retinal tissue, is destroyed by using a laser.
photocoagulative adjective: Relating to, or causing photocoagulation
photocoagulator noun: An instrument containing a laser, or a xenon flash lamp, which is used in photocoagulation.
photocollage noun: A form of collage made by assembling photographs.
photocolorimeter noun: A photoelectric colorimeter
photocolorimetric adjective: Relating to photocolorimetry
photocolorimetrically adverb: In a photocolorimetric manner
photocolorimetry noun: photoelectric colorimetry
photocolposcopic adjective: Relating to photocolposcopy
photocolposcopy noun: colposcopy by means of light (rather than x-ray or ultrasound)
photocomic noun: A photonovel.
photocomp noun /ˈfoʊtoʊˌkɒmp/: Clipping of photocomposition.
photocomplex noun: A photosystem.
photocompose verb: To use photocomposition to prepare text for printing
photocomposer noun: A machine that performs photocomposition.
photocomposition noun /ˈfoʊtoʊˌkɒmpəˌzɪʃən/: Synonym of phototypesetting.
photoconceptual adjective: Of or relating to a form of conceptual art that uses photographs.
photoconceptualism noun: The photoconceptual approach to art.
photoconceptualist noun: One who produces photoconceptual artworks.
photocondensation noun: photochemical condensation
photoconductance noun: The conductance of a material as a result of photoconductivity
photoconducting adjective: Synonym of photoconductive.
photoconduction noun: A change (normally an increase) in the electrical conductivity of a material as a result of incident electromagnetic radiation
photoconductive adjective: of, relating to, or characterized by photoconductivity
photoconductivity noun: The increase in the electrical conductivity of a material as a result of incident electromagnetic radiation.
photoconductor noun: A material or device that exhibits or uses photoconductivity
photoconjugated adjective: photochemically conjugated
photoconjugation noun: photochemical conjugation
photoconjunctivital adjective: Relating to photoconjunctivitis
photoconjunctivitis noun: Inflammation of the conjunctiva caused by UV radiation.
photoconsistency noun: The property of being photoconsistent.
photoconsistent adjective: In computer vision, the property of a voxel that appears to be occupied by part of an object, since its colour appears similar to all cameras that can see it.
photoconsumption noun: The consumption of a chemical species (typically molecular oxygen) under the influence of light
photoconsumptive adjective: Relating to photoconsumption
photocontrol noun: The control of a system using light
photocontrollability noun: The condition of being photocontrollable.
photocontrollable adjective: Controllable (switchable) by the irradiation of light.
photoconvection noun: convection under the influence of light
photoconvective adjective: Relating to photoconvection
photoconversion noun: photochemical conversion
photoconvert verb: To convert by light, usually an intense flash.
photoconverted adjective, verb: modified by photoconversion
photoconverter noun: A photodetector
photoconvertibility noun: The condition of being photoconvertible
photoconvertible adjective: That may be converted (from one form to another) by the action of light
photoconvulsion noun: A convulsion in response to a flickering light
photoconvulsive adjective: Relating to, or causing photoconvulsion
photocopiable adjective: Capable of being photocopied.
photocopier noun: A machine which reproduces documents by photographing the original over a glass plate and printing duplicates.
photocopy noun, verb /ˈfəʊtəˌkɒpi/: A copy made using a photocopier.
photocopy art noun: Synonym of Xerox art.
photocopying noun, verb: The process by which photocopies are made.
photocopylore noun: A kind of folklore comprising humorous material and urban legends that are reproduced on photocopiers.
photoCORMs noun: Light-activated carbon monoxide releasing molecules.
photocorner noun: Alternative form of photo corner.
photocorrosion noun: corrosion by the action of light
photocorrosive adjective: That causes photocorrosion
photocount noun: A count of the distributions of photons obtained by counting photoelectric electrons
photocounter noun: A device that counts photons.
photocounting noun: The counting of photons.
photocoupled adjective: coupled by means of a photocoupler
photocoupler noun: An optoisolator.
photocoupling noun: coupling activated by light
photocrayon noun: A form of enlarged photographic portrait in which a wet-plate transparency on glass was backed with white paper, on which line work was done with crayon,...
photocrosslink verb: To crosslink photochemically
photocrosslinkable adjective: photochemically crosslinkable
photocrosslinked adjective: photochemically crosslinked
photocrosslinker noun: A compound that aids photocrosslinking
photocrosslinking noun: The photoinduced formation of a covalent bond between two macromolecules or between two different parts of one macromolecule.
photocurability noun: The quality of being photocurable.
photocurable adjective: Able to be photocured.
photocured adjective: modified by photocuring
photocuring noun: The photoinduced hardening of a monomeric, oligomeric, or polymeric substrate, normally using ultraviolet light.
photocurrent noun: Any electric current that flows as a result of photoconductivity or the photovoltaic effect
photocycle noun, verb: Any of several biochemical cycles, involving photoactive proteins, that take place in the retina when exposed to light
photocyclic adjective: Relating to photocyclization
photocyclization noun: Any intramolecular photochemical process leading to a ring system by formation of one new single bond, either by a concerted process (e.g.,...
photocycloaddition noun: Any intermolecular photochemical process leading to a ring systems by formation of two new single bonds

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.