English Words: P
46,516 words · Page 325 of 931
That prevents photochemical damage to the body (by means of a dietary supplement)
An analogue of cholesterol in which the 5-6 double bond has been replaced by a photoactivatable diazirine group
To convert, by chopping, a DC (or slowly varying AC) input signal into a higher frequency signal.
An optoelectronic device that converts a DC input signal into a higher frequency signal.
A form of chromatography in which isotopically-labelled compounds may be separated by illumination at a wavelength that will excite any specific isotope
A microorganism (especially a mycobacterium) whose pigmentation develops following exposure to light.
A device for giving shifting effects of color to a photograph. The unmounted print, made translucent, is illuminated from behind with colored light.
An instrument for recording very short intervals of time. The record is made by the power of a magnetic field, due to an electric signaling current, to turn the plane of polarization of light. A flash, coinciding in time and duration with the signal, is thus produced and is photographed on a moving plate.
Any of several directional surveying instruments which record photographically the direction and magnitude of well deviations from the vertical.
The estimation of slope information by the analysis of brightness distribution in a photograph of a geologic surface (such as a lunar crater)
A surgical procedure in which a tumour, or diseased retinal tissue, is destroyed by using a laser.
An instrument containing a laser, or a xenon flash lamp, which is used in photocoagulation.
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 325. 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.