English Words: P

46,516 words · Page 208 of 931

pentacoppernoun

Five atoms of copper in a chemical compound.

pentacosadienenoun

Any of very many isomeric forms of an unsaturated aliphatic hydrocarbon having 25 carbon atoms and two double bonds

pentacosanenoun

Any of very many isomeric forms of a saturated aliphatic hydrocarbon having 25 carbon atoms, but especially n-pentacosane CH₃(CH₂)₂₃CH₃ that is found in beeswax

pentacosanoicadj

Of or pertaining to pentacosanoic acid or its derivatives.

pentacosenenoun

Any of very many isomeric forms of an unsaturated aliphatic hydrocarbon having 25 carbon atoms and one double bond

pentacovalentadj

Having five covalent bonds

pentacrininnoun

A red and purple pigment found in certain crinoids of the genus Pentacrinus.

pentacrinoidnoun

An immature comatula when it is still attached by a stem.

pentacronnoun

A solid with five summits (vertices), such as a square pyramid

pentacrosticnoun

A set of verses arranged so that the name of the subject occurs five times, the whole set of verses being divided into five different parts from top to bottom.

pentactinaladj

Having five rays

pentacubenoun

A polycube composed of five cubes

pentaculumnoun

pentacle

pentacuspidadj

Having five cusps.

pentacuspidateadj

Having five cusps

pentacyclenoun

A five-wheeled pedal cycle.

pentacyclicadj

Having five rings, especially five fused rings as in many triterpenoids.

pentacylindricaladj

Composed of five cylinders

pentadnoun

Synonym of quintet: A group of five things, particularly

pentadactyladj

Having five digits on a limb.

pentadactylismnoun

pentadactyly

pentadactyloidadj

Having the form of, or a structure modified from, a pentadactyl limb; having an underlying structure that is a limb with five digits (although these may be fused or only exist in vestigial form).

pentadactylynoun

The condition of having five digits (fingers or toes) on a limb

pentadeca-prefix

fifteen

pentadecacoppernoun

Fifteen atoms of copper in a compound.

pentadecagonnoun

A polygon with fifteen sides.

pentadecahedraladj

In the form of a pentadecahedron.

pentadecahedronnoun

A polyhedron with fifteen faces.

pentadecahydratenoun

A hydrate containing fifteen molecules of water per molecule or unit cell.

pentadecamernoun

An oligomer having fifteen subunits.

pentadecamericadj

Of or pertaining to a pentadecamer

pentadecanenoun

Any of very many isomeric saturated aliphatic hydrocarbons having fifteen carbon atoms; but especially n-pentadecane, CH₃(CH₂)₁₃CH₃

pentadecanoatenoun

Any salt or ester of pentadecanoic acid.

pentadecanoicadj

Of or pertaining to pentadecanoic acid or its derivatives.

pentadecanolnoun

A saturated aliphatic alcohol that has fifteen carbon atoms, but especially 1-pentadecanol

pentadecanonenoun

Any of several isomeric aliphatic ketones having fifteen carbon atoms

pentadecanoylnoun

The univalent radical derived from pentadecanoic acid by loss of the hydroxy group

pentadecaoxidenoun

Any oxide containing fifteen atoms of oxygen per molecule, O₁₅.

pentadecathlonnoun

A sporting event consisting of fifteen different sports or contests.

pentadecatoic acidnoun

An acid related to pentadecane.

pentadecenenoun

Any alkene that has fifteen carbon atoms and one double bond, but especially 1-pentadecene or cis 7-pentadecene

pentadecenoicadj

Relating to pentadecenoic acid or its derivatives

pentadecenoylnoun

The univalent radical derived from pentadecenoic acid by loss of the hydroxy group

pentadecimaladj

Based on the number 15; using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D and E.

pentadecylnoun

Any of very many isomeric univalent hydrocarbon radicals, C₁₅H₃₁, formally derived from pentadecane by the loss of a hydrogen atom

pentadecylicadj

Relating to the pentadecyl radical

pentadecynenoun

Any alkyne that has fifteen carbon atoms

pentadelphousadj

Of a flower or plant: having its stamens fused together at least partly by the filaments so that they form five separate groups, some of which may contain a single stamen.

pentadelphynoun

Presence of pentadelphous stamen.

pentadentateadj

Forming five separate chemical bonds to a coordinating metal ion.

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 208. 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.