English Words: N

24,391 words · Page 38 of 488

naphtha lampnoun

A type of oil lamp that burns naphtha.

naphthacenenoun

tetracene

naphthalatenoun

A salt of naphthalic acid; a phthalate.

naphthalenenoun

A white crystalline hydrocarbon manufactured from coal tar; used in mothballs.

naphthaleneaceticadj

Of or pertaining to naphthaleneacetic acid or its derivatives

naphthaleneacetic acidnoun

Either of two isomeric carboxylic acids in which a carboxymethyl group is attached to a naphthalene residue; the 1- isomer is an auxin

naphthalenediaminenoun

Any of several isomeric diamino derivatives of naphthalene

naphthalenesulfonatenoun

Any of a class of derivatives of sulfonic acid which contain a naphthalene functional unit.

naphthalenicadj

Relating to, or derived from, naphthalene

naphthalicadj

Of, pertaining to, yielding, or derived from naphthalene

naphthalidinenoun

naphthylamine

naphthalimidenoun

Any imide of a naphthalic acid

naphthameinnoun

A product formed by the oxidation of naphthalamine (also called naphthylamine), which was observed to produce blue precipitates that later became purple but that was considered useless as a commercial dyeing agent due to its poor color quality.

naphthazarinnoun

A dyestuff, resembling alizarin, obtained from naphthoquinone as a red crystalline substance with a bright green, metallic lustre.

naphthenatenoun

Any salt or ester of naphthenic acid.

naphthenenoun

Any cycloalkane (or alkyl derivative).

naphthenicadj

Of, pertaining to, or derived from a naphthene.

naphthenic acidnoun

any carboxylic acid derived from a naphthene

naphthidenoun

A compound of naphthalene or its radical with a metallic element.

naphtho-prefix

Formally describing any compound in which a naphthalene molecule has been fused to another ring molecule.

naphthoatenoun

Any salt or ester of naphthoic acid.

naphthochalconenoun

Any naphthyl derivative of a chalcone

naphthodianthronenoun

A derivative of anthraquinone related to dianthrone.

naphthoflavonenoun

Either of two isomeric flavones derived from naphthalene

naphthogenesisnoun

The genesis of petroleum, natural gas etc.

naphthoicadj

Of or pertaining to naphthoic acid or its derivatives

naphtholnoun

Either of two isomeric phenols derived from naphthalene; they are used in the preparation of dyes and many other compounds

naphtholatenoun

Any anion derived from naphthol, or any salt containing such an anion.

naphtholizeverb

To saturate or impregnate with naphthol.

naphthopyranonenoun

Synonym of naphthopyrone.

naphthopyronenoun

Any of a class of compounds having a structure consisting of a pyrone ring fused to that of naphthalene

naphthoresorcinolnoun

A white crystalline chemical compound, 1,3-dihydroxynaphthalene, used as a reagent, especially for the detection of glucuronic acid and its derivatives.

naphthotriazolenoun

Either of two aromatic heterocycles consisting of a triazole ring fused to a naphthalene moiety

naphthoylindolenoun

A class of synthetic psychoactive drugs with cannabinoidergic effects.

naphthylamidasenoun

Any enzyme that catalyzes the hydrolysis of a naphthylamide, especially one of an amino acid

naphthylamidenoun

Any amide in which the amino group is naphthylamine

naphthylaminenoun

Either of two isomeric primary amines derived from naphthalene; they occur in crude oil, and are used in the preparation of dyes and other compounds

naphthylisothiocyanatenoun

An isothiocyanate derivative of naphthalene.

naphthylpiperazinenoun

A drug derived from phenylpiperazine.

naphthylthioureanoun

the N-naphthyl derivative of thiourea; it is used as a rodenticide

naphthylvinylpyridinenoun

Any of several isomeric naphthylvinyl derivatives of pyridine, but especially 4-[(E)-2-naphthalen-1-ylethenyl]pyridine which has anticholinergic activity similar to that of atropine

naphtolnoun

Archaic form of naphthol.

Napiername

A Scottish surname originating as an occupation for someone who sold table linen, or was in charge of the linen of a great house.

Napier's constantname

Euler's number

Napieralaname

A surname from Polish.

Napierianadj

Of or relating to John Napier (1550–1617), Scottish mathematician who discovered logarithms.

Napieritenoun

A native or inhabitant of Napier, New Zealand.

Napiervillename

A municipality of Quebec, Canada.

napiformadj

Shaped like a turnip; spherical at the top, but with a tapering bottom.

napkinnoun

A serviette; a (usually rectangular) piece of cloth or paper used at the table for wiping the mouth and hands for cleanliness while eating.

Spelling & Dictionary Insight

The English alphabetical index for the letter N contains 24,391 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 488 pages, and you are currently viewing page 38. 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 "N" 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.