English Words: P

46,516 words · Page 209 of 931

pentadeuteratedadj

deuterated in five positions, or with five atoms of deuterium

pentadiagonaladj

In which the only nonzero entries are on the main diagonal, and the first two diagonals above and below it

pentadicadj

of, or relating to a pentad

pentadienenoun

Either of two isomeric dienes derived from pentane

pentadienoatenoun

Any salt or ester of pentadienoic acid.

pentadienoicadj

Of or pertaining to pentadienoic acid or its derivatives

pentadodecahedronnoun

a regular dodecahedron having twelve pentagonal faces

pentadrachmnoun

An ancient Cyrenaic coin that was worth five drachmas.

pentaenenoun

Any compound having five carbon-carbon double bonds

pentaerythritolnoun

The polyhydric alcohol 2,2-bis(hydroxymethyl)1,3-propanediol C(CH₂OH)₄

pentaerythritylnoun

The tetravalent radical derived from pentaerythritol

pentaethylenehexaminenoun

The polyethylene amine H₂N-CH₂CH₂-NH-CH₂CH₂-NH-CH₂CH₂-NH-CH₂CH₂-NH-CH₂CH₂-NH₂.

pentafidadj

Divided or split into five parts.

pentaflakenoun

A fractal formed by arranging clusters of pentagons around a central pentagon

pentafluoridenoun

Any fluoride containing five fluorine atoms in each molecule.

pentafluorobenzylnoun

A form of the benzyl radical in which each of the hydrogen atoms of the benzene ring has been replaced by fluorine

pentafluoroethanenoun

A refrigerant and fire suppression agent with the chemical formula CF₃CHF₂.

pentafluoropyridinenoun

The fully fluorinated derivative of pyridine; it is used in the synthesis of various heterocyclic compounds.

pentafluorostyrenenoun

A derivative of styrene in which each hydrogen of the benzene ring has been replaced by fluorine; it is used to make specialized polymers.

pentafunctionaladj

That has five functions

pentafunctionalisedadj

Having five functional groups

pentagalacturonicadj

Relating to pentagalacturonic acid and its derivatives

pentagalloylnoun

Five galloyl groups in a compound

pentagalloylglucosenoun

The ester of glucose with five molecules of gallic acid

pentagamistnoun

Someone who has five spouses at the same time.

pentagamynoun

The state of having five spouses simultaneously.

pentagastrinnoun

A synthetic polypeptide that has effects like gastrin when given parenterally.

pentagenariannoun

A person between 50 and 59 years old.

pentaglotadj

In five languages.

pentaglucosidenoun

A glucoside containing five glucose units

pentaglutamatenoun

Any compound (typically an ester) that has five glutamate groups

pentaglycinenoun

An oligopeptide (or section of a protein) consisting of five glycine amino acids

pentaglycosylceramidenoun

A glycosylceramide in which the sugar is a pentasaccharide

pentagonnoun

A polygon with five sides and five angles.

pentagonaladj

Of, relating to, or shaped like a pentagon.

pentagonal hexecontahedronnoun

A Catalan solid with 60 irregular pentagonal faces, 150 edges and 92 vertices, being the dual of the snub dodecahedron.

pentagonal icositetrahedronnoun

A Catalan solid with 24 irregular pentagonal faces, 60 edges and 38 vertices, being the dual of the snub cube.

pentagonallyadv

In the form of a pentagon; with five angles.

Pentagonesenoun

The jargon used by the United States Department of Defense.

pentagonismnoun

In leftist political thought, a stage beyond imperialism embodied by the United States.

pentagonitenoun

A silicate of calcium and vanadium found in basalts and tuffs

pentagonoidadj

Approximately pentagonal

pentagonousadj

Obsolete form of pentagonal.

pentagramnoun

The shape of a five-pointed star constructed of five intersecting lines meeting at the vertices, such that a central pentagon and five surrounding isosceles triangles are formed; often with magical connotations; a 5/2 (or 5/3) star polygon.

pentagrammicadj

Being or pertaining to a pentagram.

pentagridnoun

A tiling of the hyperbolic plane with regular pentagons

pentaguaninenoun

Five consecutive guanine residues in a protein or peptide

pentahalidenoun

Any halide containing five halogen atoms

pentahedraladj

relating to a pentahedron

pentahedrallyadv

In pentahedral form.

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 209. 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.