photoreproductions
plural of photoreproduction

photoresistor
An electronic component whose resistance is inversely proportional to the intensity of incident light.

photoresistors
plural of photoresistor

photorespiration
Light-dependent release of carbon dioxide and uptake of oxygen in photosynthetic organisms as an unavoidable side reaction of photosynthesis.

photoresponsiveness
The condition of being photoresponsive

photoresponsivity
The quality of being photoresponsive.

photoretinoscopy
photorefractive retinoscopy

photoreversibility
The condition of being photoreversible

photoreversion
photochemical reversion

photoreversions
plural of photoreversion

photosaturation
photochemical or photolytic saturation (a situation in which more light has no additional effect)

photoscience
Any branch of physics, chemistry or biology concerned with the actions of light.
The science of photography.

photosciences
plural of photoscience

photoscopy
The use of the photoscope.

photoscreening
The use of a photoscreener to detect lazy eye in children

photosedimentation
Optical sedimentation.

photosedimentometry
The optical measurement of the settling rates of particles and fibres.

photoselectivities
plural of photoselectivity

photoselectivity
The condition of being photoselective

photosensation
The process of sensing light.

photosensibility
Misspelling of photosensitivity.

photosensitisation
Alternative form of photosensitization.

photosensitiveness
Photosensitivity.

photosensitivities
plural of photosensitivity

photosensitivity
sensitivity to light, especially a heightened response to light

photosensitization
The acquisition of photosensitivity
The transfer of a photon from one excited state to another, which then undergoes a reaction

photosensitizations
plural of photosensitization

photosequence
A sequence of photographs (made using a still camera)

photosequences
plural of photosequence

photoserigraphy
The production of photoserigraphs

photospectrometry
spectrometry, especially that which uses visible light

photospectroscopy
spectroscopy that is recorded photographically

photosphere
A visible surface layer of a star, and especially that of a sun.

photospheres
plural of photosphere

photostabilities
plural of photostability

photostability
stability against photochemical change

photostabilization
photochemical stabilization

photostage
A period of growth primarily driven by light.

photostages
plural of photostage

photostimulon
photochemical stimulon

photostimulons
plural of photostimulon

photosubstitution
Any photochemical substitution reaction

photosubstitutions
plural of photosubstitution

photoswitchability
The condition of being photoswitchable

photosymbiodeme
The morphologically varying structures formed by the interaction of a single mycobiont with two different photobionts.

photosymbiodemes
plural of photosymbiodeme

photosyntax
photosynthesis

photosyntheses
plural of photosynthesis

photosynthesis
Any process by which plants and other photoautotrophs convert light energy into chemical energy.
Any process by which plants and other photoautotrophs convert light energy into chemical energy.

photosystem
Either of two biochemical systems, active in chloroplasts, that are part of photosynthesis

photosystems
plural of photosystem

phototachometry
The use of the phototachometer.

phototautomerization
A form of photoisomerization leading to the formation of a tautomer.

phototautomerizations
plural of phototautomerization

phototelegraphy
The fax system

phototelephony
The transmission of sound by means of light.

phototherapies
plural of phototherapy

phototherapy
The use of light to treat disorders of the skin, and certain mood disorders.

photothermoelasticity
The changes in the optical properties of a dielectric when subject to heat-induced mechanical stress.

photothermography
The formation of images using a combination of heat and light, either simultaneously or sequentially

photothreshold
The threshold at which a photoelectric effect is established

photothresholds
plural of photothreshold

phototolerance
The condition of being phototolerant

phototolerances
plural of phototolerance

phototopography
The surveying and mapping of a terrain based solely on terrestrial photographs.

phototourism
tourism with the aim of taking photographs

phototransduction
The process whereby the various bodies in the retina convert light into electrical signals

phototransfection
transfection by means of a pulse of laser light

phototransformation
photochemical transformation

phototransformations
plural of phototransformation

phototransmission
The process of transmitting a picture electronically.

phototransparencies
plural of phototransparency

phototransparency
A photographic slide.
The optical transparency of an object, but especially that of tissue and bone to X-rays.

phototreatment
The treatment of waste water with ultraviolet light.

phototreatments
plural of phototreatment

phototriangulation
triangulation using photogrammetry

phototrichogram
A photographic trichogram.

phototrichograms
plural of phototrichogram

phototypy
The art or process of producing phototypes.

photovoice
A group analysis method combining photography with grassroots social action. Participants are asked to represent their communities or express their points of view through taking, presenting and collaboratively interpreting photographs.

photovoices
plural of photovoice

photowalk
A walk through a location for the purpose of taking photographs.

photoxylography
A process in which a photograph is printed on wood to use as a template for engraving

photuria
Luminous or phosphorescent urine.

phouka
Alternative form of pooka (“supernatural creature”).

phoukas
plural of phouka

phousdar
Alternative form of faujdar.

phousdars
plural of phousdar

phrasehood
The property of being a phrase.

phrasemaking
The crafting of phrases; the art of rhetoric.

phrasemakings
plural of phrasemaking

phrasemongery
Elaborate or bombastic speech or writing.

phraseography
The use of phraseograms.

phraseologies
plural of phraseology

phraseology
Study of set or fixed expressions.
The style in which words and phrases are used in writing or speech.
A group of specialized words and expressions used by a particular group.
A collection of phrases; a phrasebook.

phrasiness
The quality of being phrasy.

phrastic
The component of meaning in a sentence independent of mood or force.

phrastics
plural of phrastic

phreatomagmatism
The explosive interaction between magma and water.

phrenalgia
psychalgia; non-physical pain
pain in the diaphragm

phrenics
The branch of science that relates to the mind; mental philosophy.
The phrenic nerves; the nerves that control the diaphragm.

phrenism
A supposed "thought force" in vitalism.

phrenography
descriptive psychology

phrenomagnetism
A form of mind control using magnetic or mesmeric influence to (apparently) will someone to act, such as by touching parts of the head.

phrenomesmerism
The use of phrenology in mesmerism, involving pressure applied to parts of the head.

phronemophobia
An aversion to thinking.

phryctoria
An ancient Greek semaphore system.

phrygana
A type of low brush or scrub found around the Mediterranean especially in Greece.

phryganas
plural of phrygana

phthaloylation
Any addition reaction of a phthaloyl group.

phthaloylations
plural of phthaloylation

phthisiophobia
A morbid fear of tuberculosis.

phthisiotherapy
The treatment of phthisis.

phulka
A small chapati.

phulkas
plural of phulka

phycocolloid
Any of several algal-derived colloids, including alginates, carrageenans, and agars.

phycocolloids
plural of phycocolloid

phycosphere
The region of mucus that surrounds a phytoplankton cell

phycospheres
plural of phycosphere

phylacteries
plural of phylactery