English Words: M

36,575 words · Page 269 of 732

mercapto proteasenoun

A protease that contains an active sulfhydryl group.

mercapto-prefix

an organosulfur compound that contains a carbon-bonded sulfhydryl or sulphydryl

mercaptoalkylnoun

An alkyl group having a mercaptan (thiol) substituent

mercaptobenzoicadj

Of or pertaining to a mercaptobenzoic acid or its derivatives

mercaptobenzothiazolenoun

An organosulfur compound, C₆H₄(NH)SC=S, used in the sulfur vulcanization of rubber.

mercaptoethanolnoun

A compound of ethanol with a thiol group, often specifically 2-mercaptoethanol, which is used in various organic chemistry applications including protein denaturation

mercaptoethylaminenoun

The aminothiol NH₂-CH₂-CH₂-SH normally formed by the degradation of cysteine

mercaptohistidinenoun

A thiol that is a histidine derivative.

mercaptopropionicadj

Of or pertaining to mercaptopropionic acid or its derivatives

mercaptopropylnoun

Any univalent radical formally derived from a propyl radical by replacing a hydrogen atom with a thiol group

mercaptopurinenoun

An thiol antimetabolite C₅H₄N₄S that interferes especially with the metabolism of purine bases and the biosynthesis of nucleic acids and that is sometimes used in the treatment of acute leukemia.

mercaptopyruvatenoun

Any salt or ester of mercaptopyruvic acid (HS-CH₂-CO-COO-R)

mercaptosilanenoun

Any silane that also has a thiol group

mercaptosuccinatenoun

Any salt or ester of mercaptosuccinic acid

mercaptothionnoun

The pesticide malathion.

mercaptoundecanoicadj

Of or pertaining to mercaptoundecanoic acid or its derivatives

mercapturicadj

Related to a mercapturic acid or its derivative

mercatnoun

Market; trade.

Mercatornoun

An orthomorphic map projection, in which meridians appear at right-angles to the equator, and lines of latitude are horizontal lines whose distance from each other increases with distance from the equator.

mercatorialadj

Relating to merchants or traders.

Mercatorianadj

Of or relating to Gerardus Mercator, 16th-century Flemish cartographer who invented the Mercator projection.

mercatorismnoun

The tendency of transnational commerce to operate outside any system of national laws, making use, instead, of a system of arbitration.

mercaturenoun

commerce; trade

merceverb

To subject to fine or amercement; to mulct; to amerce.

Mercedname

A surname.

Merced Countyname

One of 58 counties in California, United States. County seat: Merced.

Mercedariannoun

A member of the Order of the Blessed Virgin Mary of Mercy.

Mercedesname

A female given name from Spanish, equivalent to English Mercy occasionally borrowed from Spanish.

Mercedes La Ceibaname

A town in La Paz department, El Salvador.

Mercedes Umañaname

A town in Usulután department, El Salvador.

Mercedes-Benzname

An automotive brand or marque from Daimler-Benz.

mercementnoun

An amercement, a punishment.

mercenarilyadv

In a mercenary way, for selfish reason of profit or gain.

mercenarinessnoun

The state or condition of being mercenary.

mercenarynoun

One motivated by gain, especially monetary.

mercenaryismnoun

Synonym of mercenarism.

mercernoun

A merchant dealing in fabrics and textiles, especially silks and other fine cloths.

merceressnoun

A female mercer.

mercerisationnoun

A process of treating cotton with sodium hydroxide in order to make it more lustrous.

mercerizeverb

To treat (cotton fabric) with sodium hydroxide to make it more lustrous and accepting of dyes.

mercerizernoun

One who mercerizes.

Merceronname

A surname

Mercersburg theologynoun

A German-American theological movement that began in the mid-19th century, focusing on the incarnation of Christ.

mercershipnoun

The position, role, or work of a mercer.

mercerynoun

The trade of mercers.

merchnoun

goods which are or were offered or intended for sale.

merchandverb

To trade; to traffic.

merchandisabilitynoun

The quality of being merchandisable.

merchandisableadj

Suitable for merchandising.

Spelling & Dictionary Insight

The English alphabetical index for the letter M contains 36,575 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 732 pages, and you are currently viewing page 269. 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 "M" 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.