English Words: P

46,516 words · Page 372 of 931

picoinjectornoun

A picoscale injector

picojoulenoun

One million millionth ( 10⁻¹² ) of a joule. Symbol: pJ.

picokatalnoun

An SI unit of catalytic activity equal to 10⁻¹² katals. Symbol: p

picokelvinnoun

A unit of temperature equal to 10⁻¹² of a kelvin

picolinatenoun

Any salt or ester of picolinic acid.

picolinicadj

Related to picolinic acid or its derivatives.

picoliniumnoun

Any cation produced by protonation of a picoline.

picolitrenoun

One millionth of a microlitre; 10⁻¹² litres. Symbol: pL or pl.

picolylnoun

A univalent radical derived from a picoline

picolylaminenoun

Any amine derived from a picoline by replacing a hydrogen atom (of a methyl group) with an -NH₂ group

picolylaminesnoun

plural of picolylamine

picometernoun

US spelling of picometre.

picometrenoun

An SI unit of length equal to 10⁻¹² metres. Symbol: pm

picomolnoun

Alternative form of picomole.

picomolaradj

Having a concentration of one picomole per litre.

picomolenoun

A unit of substance equal to one trillionth (10⁻¹²) of a mole

piconnoun

A caramel-coloured flavoured bitters made from oranges, gentian, and quinquina, traditionally accompanying beer in the east and north of France.

piconetnoun

a small computer network using Bluetooth protocols

piconewtonnoun

An SI unit of force equal to 10⁻¹² newtons. Symbol: pN

picongnoun

A kind of informal banter, often lightly pejorative but rarely mean-spirited, strongly associated with the lyrics of calypso music.

picophotoautotrophnoun

A very small (typically unicellular) photoautotroph

picophototrophnoun

a picoscale phototroph

picophytoplanktonnoun

photosynthetic picoplankton

picophytoplanktonicadj

Relating to picophytoplankton

picopipettenoun

A picoscale pipette.

picoplanktonnoun

The plankton composed of cells between 0.2 and 2 micrometers.

picoplanktonicadj

Of or pertaining to picoplankton

picoplatinnoun

A platinum-based antineoplastic drug.

picoprasinophytenoun

Any green alga of the class Picoprasinophyceae, of which Picocystis salinarum is the sole accepted species in 2019.

picoprojectornoun

Alternative form of pico projector.

picoprokaryotenoun

Any picoscale prokaryote

picoprokaryoticadj

Relating to picoprokaryotes

picopumpnoun

A very small pump that is used with microinjections

picoradiannoun

A unit of solid angle equal to 10⁻¹² radians

picornavirologistnoun

A scientist who studies picornaviruses.

picornavirologynoun

The scientific study of picornaviruses.

picornavirusnoun

Any of the family Picornaviridae of RNA viruses, many of which are pathogenic, causing diseases such as polio, foot-and-mouth disease, and many varieties of the common cold.

picosatnoun

A picosatellite.

picosatellitenoun

An artificial satellite with a wet mass between 0.1 and 1 kilograms.

picoscaleadj

On a scale measured in picometers

picosecondnoun

An SI unit of time equal to 10⁻¹² seconds. Symbol: ps

picosiemensnoun

An SI unit of electrical conductance equal to 10⁻¹² siemens.

picosignalnoun

A picoscale signal

picospritzernoun

A device that produces an extremely small spray of liquid

picotnoun

An embroidery trim made of a series of small loops.

picotanoun

A machine for raising water consisting of a long lever or yard, pivotted on an upright post, weighted on the short arm and bearing a line and bucket on the long arm.

picotechnoun

Abbreviation of picotechnology.

picotechnologynoun

picoscale technology

picoteenoun

A flower (such as a carnation) whose margin is a different colour from the flower's basic colour.

picotiternoun

A miniaturized form of microtiter

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 372. 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.