English Words: P

46,516 words · Page 328 of 931

photodepolarizationnoun

depolarization on exposure to light

photodepolarizeverb

To cause or to undergo photodepolarization.

photodepolarizernoun

Any substance that initiates photodepolarization

photoderivativenoun

Any derivative of a compound produced by a photochemical reaction

photodermatitisnoun

Dermatitis caused by or aggravated by exposure to sunlight.

photodermatologicaladj

Relating to photodermatology

photodermatologynoun

The study of the effects of light on the skin

photodermatosisnoun

dermatosis caused by or aggravated by exposure to light

photodermatotoxicitynoun

Light-induced toxicity in the skin.

photodesorptionnoun

An increase in the desorption of a substance from an interface in the presence of light.

photodestructionnoun

photobleaching

photodetachmentnoun

The absorption of a photon and subsequent elimination of an electron from an anion to form a neutral species.

photodetectionnoun

The detection of individual photons using a photodetector

photodetectornoun

Any device used to detect electromagnetic radiation

photodeteriorationnoun

photodegradation

photodevicenoun

A photodetector.

photodiagnosisnoun

Diagnosis by means of visible or infrared light.

photodichroicadj

Exhibiting photodichroism

photodichroismnoun

photoinduced dichroism or birefringence

photodifferencenoun

Used attributively to describe a map of the electron density differences between parts of a sample that had been irradiated

photodiffusionnoun

The creation of a voltage across a conductor or semiconductor by illuminating one side of it

photodimernoun

Any dimer created by photodimerization

photodimerizationnoun

Any photochemical dimerization reaction

photodimerizedadj

Produced by photodimerization

photodiodenoun

A semiconductor two-terminal component whose electrical characteristics are light-sensitive.

photodiscnoun

Alternative spelling of photodisk.

photodisinfectionnoun

topical disinfection by means of light

photodisintegrateverb

To cause or undergo photodisintegration.

photodisintegratedadj

Broken down by photodisintegration.

photodisintegrationnoun

Any nuclear reaction, especially a nuclear fission, initiated by absorption of high-energy electromagnetic radiation such as a gamma ray.

photodisknoun

The circular area of an astronomical object that emits light

photodisruptverb

To cause photodisruption

photodisruptionnoun

The use of short bursts of laser light to disrupt tissue

photodisruptiveadj

That causes photodisruption

photodissociableadj

Capable of undergoing photodissociation.

photodissociateverb

To cause or to undergo photodissociation.

photodissociatedadj

dissociated by photodissociation

photodissociatingadj

Causing, or undergoing photodissociation

photodissociationnoun

The dissociation of a molecule following the absorption of a photon

photodissociationsnoun

plural of photodissociation

photodissociativeadj

Of or relating to photodissociation.

photodissolutionnoun

photochemical dissolution

photodistributionnoun

The distribution of photosensitive damage to those areas of skin that receive the greatest exposure to sunlight

photodocumentverb

To document with photographs

photodocumentarynoun

A collection of photographs serving as a documentary.

photodocumentationnoun

photographic documentation

photodocumentedverb

simple past and past participle of photodocument

photodocumenternoun

A person or device that photodocuments

photodopeverb

To dope (a semiconductor etc) by means of (laser) light.

photodopedadj

Having undergone the photodoping process.

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 328. 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.