English Words: P
46,516 words · Page 333 of 931
immunosuppression as a result of exposure to (typically ultraviolet) light
induced as a result of interaction with electromagnetic radiation in the visible and near-visible range.
The inhibition of photosynthesis caused by protein damage due to high levels of light (especially ultraviolet)
The photoproduction of a radical or ion that is capable of initiating a chain reaction; used especially to initiate polymerization
Any substance that initiates a chemical reaction by the absorption of a photon to form an excited state.
An optical device that acts as a switch when a beam of light is blocked by a foreign object
The ejection of electrons from an atom or other species following the absorption of photons.
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 333. 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.