English Words: P

46,516 words · Page 334 of 931

photoionizationnoun

Alternative spelling of photoionisation.

photoionizeverb

To cause or to undergo photoionization.

photoionizingadj

That causes or undergoes photoionization

photoirradiateverb

To irradiate with light

photoirradiationnoun

irradiation with light

photoirritancynoun

Synonym of photoirritation.

photoirritationnoun

irritation caused by exposure to light

photoisolatornoun

An optoisolator

photoisomernoun

An isomer formed via photoexcitation.

photoisomerasenoun

Any of a group of enzymes that catalyse the isomerization of photopigments

photoisomerismnoun

isomerism (interconversion of isomers) as a result of irradiation by light

photoisomerizableadj

Able to undergo photoisomerization

photoisomerizationnoun

The formation of isomers via photoexcitation

photoisomerizeverb

To cause a structural change between isomers through photoexcitation

photoisomerizedadj

photochemically isomerized

photoistnoun

A photographer.

photojournalnoun

A journal in the form of a collection of photographs that tell a story.

photojournalismnoun

A form of journalism in which a story is told primarily through photographs and other images.

photojournalistnoun

A journalist who uses photojournalism.

photojournalisticadj

Of, or relating to photojournalism or photojournalists.

photojunctionnoun

A nuclear battery in which a phosphor is irradiated by a radioactive material; a silicon junction converts the emitted light into electricity.

photokeratectomynoun

keratectomy by means of laser light

photokeratitaladj

Relating to photokeratitis

photokeratitisnoun

A painful condition of the eyes caused by exposure of unprotected eyes to ultraviolet (UV) rays.

photokillingnoun

killing (especially of bacteria, or of cancer cells) by means of light

photokinasenoun

A kinase involved with photokinesis

photokinesisnoun

Any movement that is in response to light.

photokineticadj

Of or pertaining to photokinesis.

photokineticsnoun

The study of photokinesis

photolabnoun

A photographic processing laboratory.

photolabelnoun

A label attached to a molecule by photoaffinity labeling

photolabelingnoun

photoaffinity labeling

photolabileadj

Labile or kinetically unstable in the presence of light; subject to photochemical or photophysical reactions.

photolabilitynoun

The condition of being photolabile.

photolarvicidaladj

Relating to photolarvicides

photolarvicidenoun

A larvicide whose efficacy is improved with a photosensitizing agent

photolesionnoun

A lesion formed by exposure to light

photolessadj

Without photographs.

photoletteringnoun

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

photoliberatedadj

liberated (released from a complex) by the action of light

photoliberationnoun

liberation of a compound by the action of light

photoligationnoun

Ligation triggered by light.

photolikeadj

Resembling or characteristic of a photograph.

photolithnoun

photolithography

photolithoautotrophnoun

Any autotrophic organism that uses light energy and an inorganic electron donor and carbon dioxide as its carbon source.

photolithoautotrophicadj

Being or relating to a photolithoautotroph

photolithoautotrophicallyadv

In a photolithoautotrophic manner

photolithographnoun

A lithograph made by photolithography.

photolithographernoun

a person who practices photolithography

photolithographicadj

Of, pertaining to, or produced by photolithography

Spelling & Dictionary Insight

The English alphabetical index for the letter P contains 46,516 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 931 pages, and you are currently viewing page 334. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.

On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.

For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "P" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.