photokeratoscopy
The use of a photokeratoscope.

photokineses
plural of photokinesis

photokinesis
Any movement that is in response to light.
The ability to mentally manipulate light.

photokinetics
The study of photokinesis

photolability
The condition of being photolabile.

photolettering
The formation of lines of type on photographic paper or film.

photoligation
Ligation triggered by light.

photolithoautotrophy
The condition of being a photolithoautotroph.

photolocation
The ability to use light to locate objects in the environment.

photolocations
plural of photolocation

photolog
photoblog

photologs
plural of photolog

photology
A branch of physics that deals with light or the study of light and its effects.
That science concerned with the production of light and energy, especially regarding therapeutic applications.

photoluminescence
luminescence following the absorption of a photon.

photoluminescences
plural of photoluminescence

photolurking
The practice of viewing online photos, especially those of strangers, without leaving comments, but possibly discussing them with third parties.

photom
Abbreviation of photometry.

photomacrography
The photography of small objects, at close range, using a macro lens.

photomacroscopy
The use of the photomacroscope.

photomagnetism
The branch of science that deals with the relation of magnetism to light, or the effect in which a material acquires or loses its ferromagnetic properties in response to light.

photomagnetization
magnetization induced by light

photomania
A fascination with photography.

photomasking
The process of applying a photomask

photomaskings
plural of photomasking

photomatic
A series of still photographs edited together and presented on screen in a sequence.

photomatics
plural of photomatic

photomedicine
The branch of medicine that involves the therapeutic use of light.

photomeson
A meson (usually a p-meson) ejected from a nucleus by an impinging photon

photomesons
plural of photomeson

photometabolism
photochemical metabolism

photometeor
Any visible phenomenon in the atmosphere caused by reflection, refraction, diffraction or interference.

photometeors
plural of photometeor

photometrics
The science of photometry.

photometries
plural of photometry

photometry
The measurement of various aspects of light, especially its intensity.
The measurement of the intensity and spectrum of light from stars.

photomezzotype
A photomechanical process similar to collotype.
A picture produced by this process.

photomezzotypes
plural of photomezzotype

photomicrography
Photography using a microscope.

photomicrometry
micrometry using light (typically from a laser)

photomicroscopy
The use of a photomicroscope.

photomineralization
photochemical mineralization

photomineralizations
plural of photomineralization

photomodification
photochemical modification

photomodulation
modulation by means of light

photomodulations
plural of photomodulation

photomotility
The condition of being photomotile

photomultiplication
The process performed by a photomultiplier.

photomultiplications
plural of photomultiplication

photomural
A large photograph (or series of photographs) used as a wall decoration.

photomurals
plural of photomural

photomutagenicity
The state or condition of being photomutagenic.

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.

photoneutrino
A neutrino that is produced (along with an antineutrino) when a high-energy photon collides with an electron

photoneutrinos
plural of photoneutrino

photoneutron
A free neutron produced by a photonuclear reaction

photoneutrons
plural of photoneutron

photonics
The science and technology of generating and controlling photons, particularly in the visible and near infrared light spectrum.

photons
plural of photon

photoorientation
The process of aligning molecules or living organisms using light.

photooxygenation
Any oxygenation reaction that takes place in the presence of light.

photopair
A pair of photons, produced simultaneously, typically moving in opposite directions

photopairs
plural of photopair

photoperception
The perception of light (by plants)

photoperiodicities
plural of photoperiodicity

photoperiodicity
The condition, or extent, of being photoperiodic

photoperoxidation
peroxidation catalysed by light

photoperoxidations
plural of photoperoxidation

photopharmacology
photochemical pharmacology

photophase
The period of light during a day-night cycle.

photophases
plural of photophase

photophilia
A tendency to thrive in bright sunlight.

photophobia
Excessive sensitivity to light and the aversion to bright light; abnormal fear of light.

photophobias
plural of photophobia

photophobicity
Quality or degree of being photophobic.

photophobism
Rare form of photophobia.

photophonophobia
Excessive sensitivity to light and sound; abnormal fear of light and sound.

photophony
The art or practice of using the photophone.

photophosphorescence
Phosphorescence induced by the presence of light.

photophosphorylation
photosynthetic phosphorylation

photophosphorylations
plural of photophosphorylation

photophysics
The physics of light, especially of its interaction with matter.

photophysiologies
plural of photophysiology

photophysiology
The physiology of processes (such as photosynthesis) that involve light

photopion
A pion generated by the action of light

photopions
plural of photopion

photoplanimetry
photographic planimetry

photopography
Alternative form of phototopography.

photopolarimeter
A combination of a polarimeter and a photometer

photopolarimeters
plural of photopolarimeter

photopollution
Light pollution.

photopolymerisation
Alternative form of photopolymerization.

photopolymerisations
plural of photopolymerisation

photopolymerization
Any polymerization reaction that requires light for the propagation step.

photopolymerizations
plural of photopolymerization

photoporation
The process of using light to create pores in a cell membrane

photoprecipitation
precipitation caused by light

photoprevention
prevention (of some undesired effect) by means of a form of light

photopsia
The presence of perceived flashes of light.

photopsias
plural of photopsia

photoptarmosis
Photic sneeze reflex.

photopulse
A short pulse of light

photopulses
plural of photopulse

photoradio
An early facsimile technology for transmitting documents by radio.

photoradiography
A form of radiography that uses visible light

photoreaction
a photochemical reaction

photoreactions
plural of photoreaction

photoreactivability
The condition of being photoreactivable.

photoreactivation
reactivation by light

photoreactivities
plural of photoreactivity

photoreactivity
The condition of being photoreactive

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.

photorecombination
recombination influenced by light

photorecombinations
plural of photorecombination

photoreconnaissance
The making of aerial photographs as a means of military reconnaissance, especially of potential targets.

photoreducibility
The condition of being photoreducible.

photorefraction
A nonlinear optical effect seen in certain crystals and other materials that respond to light by altering their refractive index.
The refraction of light, typically within the eye.

photorefractions
plural of photorefraction

photorefractoriness
Quality of being photorefractory.

photoregeneration
photochemical regeneration

photoregenerations
plural of photoregeneration

photoregulation
photochemical regulation

photorelocation
relocation (typically of chloroplasts) in response to light

photorelocations
plural of photorelocation

photoreproduction
A photocopy.