English Words: P

46,516 words · Page 330 of 931

photoeliminationnoun

photochemical elimination

photoemissionnoun

the ejection of electrons from the surface of a solid by incident electromagnetic radiation

photoemissiveadj

Of or relating to photoemission.

photoemitverb

To emit by photoemission.

photoemitternoun

A material that exhibits the photoemission of electrons when illuminated

photoemulsionnoun

photographic emulsion

photoencapsulateverb

To encapsulate photochemically

photoencapsulationnoun

photochemical encapsulation

photoendolithnoun

Any photoautotrophic endolith

photoendosomolysisnoun

endosomolysis initiated by light

photoendosomolyticadj

Relating to photoendosomolysis

photoendosymbiontnoun

A photosynthetic endosymbiont

photoenergynoun

The energy of a system of photons or other wavepackets

photoengraveverb

To make a photoengraving of an image

photoengravernoun

A person who makes photoengravings.

photoengravingnoun

A process of transferring a photographic image onto a plate which is then etched and printed.

photoenhanceverb

To enhance by means of photoenhancement

photoenhancementnoun

enhancement of photographic images, typically by digital means

photoenhancernoun

Anything that employs photoenhancement

photoenlargernoun

A photographic enlarger

photoenolizationnoun

A form of phototautomerization leading to the production of enols

photoentrainverb

To entrain a circadian rhythm by means of light

photoentrainableadj

entrainable by means of light

photoentrainmentnoun

The entrainment of an organism's circadian rhythm to the pattern of light and dark in its environment

photoenvironmentnoun

An environment that has a particular level of light

photoenzymaticadj

Relating to, or catalysed by a photoenzyme

photoenzymenoun

Any enzyme that catalyses a photochemical reaction

photoepilepsynoun

Photosensitive epilepsy.

photoepilepticadj

Of, pertaining, affected by, or causing photoepilepsy.

photoepinastynoun

A disproportionately rapid growth of the upper surface of dorsiventral organs, such as leaves, through the stimulus of exposure to light.

photoequilibriumnoun

photochemical equilibrium

photoequivalencenoun

Photochemical equivalence, as described by the Stark-Einstein law.

photoetchverb

To engrave, or make an engraving of, by any photomechanical process involving etching of the plate.

photoetchingnoun

A photolithographic etching process.

photoevaporateverb

To ionise gas and cause it to disperse.

photoevaporationnoun

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

photoevaporativeadj

That causes photoevaporation

photoevolutionnoun

Synonym of photoemission.

photoevolveverb

Synonym of photoemit.

photoexchangenoun

photochemical exchange

photoexcitabilitynoun

The condition of being photoexcitable

photoexcitableadj

excitable (able to be put into an excited state) by absorption of a photon

photoexcitationnoun

The formation of an excited state by the absorption of a photon.

photoexciteverb

To excite (an electron etc.) by means of photoexcitation

photoexposeverb

To expose to light

photoexposurenoun

exposure to light

photofabricationnoun

A photographic method of manufacturing integrated circuits in which a pattern is placed over a semiconductor in an etching solution and exposed to light

photofacilitationnoun

facilitation (in any of several contexts) by means of light

photofadingnoun

photochemical fading

photofermentationnoun

fermentation that only proceeds in the presence of light; especially a process of producing hydrogen. Unlike biophotolysis in which hydrogen is produced from water, photofermentation produces hydrogen from organic substrates.

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 330. 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.