English Words: M

36,575 words · Page 237 of 732

megapopularadj

Extremely popular.

megapopulationnoun

A very large population.

megaportnoun

An extremely large port, especially one that combines support for air, naval, and/or terrestrial travel.

megaportalnoun

A very large, successful portal web site.

megapostnoun

An extremely long posted message, often made up of a collection of related posts.

megaprepucenoun

Pathological preputial enlargement.

megaprimarynoun

A primary election for president that takes place on the same day across a wide geographic area covering many voters.

megaprimenoun

A prime number with at least one million decimal digits.

megaprimernoun

A mutagenesis technique that uses three oligonucleotide primers to perform two rounds of polymerase chain reaction

megaprisonnoun

An extremely large prison.

megaproducernoun

A particularly successful producer.

megaprofitnoun

A vast profit.

megaprojectnoun

A very large public investment project, especially one costing more than one billion US dollars.

megaprosthesisnoun

A large prosthesis, typically used to replace a limb.

megaprostheticadj

Relating to a megaprosthesis.

megaproteinnoun

An extremely large protein.

megaquakenoun

A megathrust earthquake.

megaquartznoun

A type of large quartz present as individual crystals and clusters of crystals, as well as overgrowths on detrital quartz grains, found in Quaternary dolomites.

Megaraname

A city west of Athens in the Attica prefecture, Greece.

megaradnoun

A unit of radiation equivalent to one million rads.

megaraptornoun

A member of the genus Megaraptor of large theropod dinosaurs that lived in the Turonian to Coniacian ages of the Late Cretaceous.

megaraptoridnoun

Any theropod dinosaur of the family †Megaraptoridae.

megaraptoridsnoun

plural of megaraptorid

megararitynoun

An extremely rare bird for a particular locality.

megarayleighnoun

A unit of brightness equal to one million rayleighs.

megareadnoun

A million reads (the identification of a million bases in a genome)

megarecessionnoun

A major economic recession.

megarectumnoun

An abnormally large rectum.

megaregionnoun

A megalopolis.

megaregionaladj

Relating to a megaregion.

megaregolithnoun

A layer of fractured bedrock beneath the lunar regolith

megaresortnoun

A very large-scale resort

megaretailernoun

A retailer that operates on a very large scale.

Megarianadj

Of, from, or pertaining to, Megara

Megaricadj

Of, from, or pertaining to, Megara

megarichadj

Extremely rich; having a lot of money.

megaripplenoun

A giant ripple, typically of sand exposed to tidal action.

megaronnoun

The rectangular great hall in a Mycenaean building, usually supported with pillars.

megasamplenoun

A million samples

megasatellitenoun

A large DNA tandem repeat

megascaleadj

Extremely large-scale

megasciencenoun

An area of scientific inquiry which is so complex and/or expensive that international collaboration is required to investigate it.

megascolecidnoun

Any earthworm of the family Megascolecidae.

megascolecineadj

Belonging or related to the Megascolecidae family of earthworms.

megascopenoun

A modification of the magic lantern, used especially for throwing a magnified image of an opaque object on a screen, solar or artificial light being used.

megascopicadj

Visible to the naked eye.

megascopicallyadv

In a megascopic manner.

megasecondnoun

An SI unit of time equal to 10⁶ seconds. Symbol: Ms. (= 11.5741 days)

megaseismnoun

A large or severe earthquake.

megasellernoun

A book or other product that has sold in extremely large numbers.

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 237. 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.