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English Words Starting With M

8,594 entries — pick a word to see its definition, pronunciation, and usage.

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Noun Verb Adjective Adverb Plural noun Combining form Verb (transitive)Verb (intransitive)Verb (ambitransitive)

microglia
nounC1
/ˌmaɪ.krəʊˈɡliː.ə/A type of neuroglial cell in the central nervous system that acts as the primary immune defense.
microgram
nounC2
/ˈmʌɪkrə(ʊ)ɡram/A unit of mass equal to one millionth of a gram (10⁻⁶ g) or one thousandth of a milligram.
micrograph
nounC1
/ˈmaɪ.krəʊ.ɡrɑːf/A photograph, drawing, or digital image taken through a microscope.
micrographia
nounVery Low
/ˌmaɪ.krəʊˈɡræ.fɪ.ə/Abnormally small, cramped handwriting, often associated with neurological disorders.
micrographics
nounVery Low
/ˈmaɪ.krəʊˌɡræf.ɪks/The technology or process of creating, storing, and retrieving documents in a reduced, microscopic form, typically on microfilm or microfiche.
micrography
nounRare / Technical
/maɪˈkrɒɡrəfi/The writing, engraving, or description of very small objects.
microgravity
nounC1
/ˈmaɪ.krəʊ.ˌɡræv.ɪ.ti/A state of very low gravity, or the condition in which the effects of gravity are greatly reduced, creating near-weightlessness.
microgreen
nounC1
/ˈmaɪ.krəʊ.ɡriːn/A tiny, edible, young vegetable green harvested just after the first true leaves have developed, used as a culinary ingredient for flavour, texture, and visual appeal.
microgreens
plural-nounLow-medium
/ˈmaɪ.krəʊ.ɡriːnz/Edible young vegetable greens, harvested very shortly after the cotyledon leaves have developed, used primarily as a culinary ingredient.
microgroove
nounC2
/ˈmaɪkrəʊˌɡruːv/An extremely fine, closely spaced spiral groove on a vinyl phonograph record, used for long-playing (LP) records.
microhabitat
nounC1
/ˈmaɪkrəʊˌhæbɪtæt/A very small, specialized habitat within a larger ecosystem, often with unique environmental conditions.
microinch
nounVery Low
/ˈmaɪkrəʊˌɪn(t)ʃ/A unit of length equal to one millionth of an inch, used in precision engineering and manufacturing.
microinject
verb-transitiveVery Low (C2+)
/ˈmaɪkrəʊɪnˌdʒɛkt/To introduce a substance into a microscopic or very small structure, such as a cell, using a very fine needle or pipette.
microinjection
nounC2
/ˌmaɪ.krəʊ.ɪnˈdʒek.ʃən/A laboratory technique where a microscopic needle is used to introduce very small quantities of liquid (e.g., DNA, proteins) directly into a single living cell.
microinstruction
nounLow
/ˌmaɪ.krəʊ.ɪnˈstrʌk.ʃən/A basic, low-level command that directly controls the operation of the functional units within a central processing unit (CPU).
microjet
nounRare
/ˈmaɪkrəʊdʒɛt/A very small jet engine or a small aircraft powered by one.
microlepidoptera
plural-nounVery Low
/ˌmaɪkrəʊˌlɛpɪˈdɒptərə/A taxonomic grouping of very small, usually drab-colored moths, often characterized by wing patterns requiring magnification to study.
microlight
nounLow
/ˈmʌɪkrə(ʊ)lʌɪt/A very small, lightweight, typically single- or two-seat aircraft with a simple structure, often featuring a tricycle undercarriage and an open cockpit.
microlite
nounC2
/ˈmaɪ.krəʊ.laɪt/A very small-scale, basic, or simplified version of something.
microlith
nounC1+
/ˈmaɪkrə(ʊ)lɪθ/A very small stone tool, typically made of flint, characteristic of some Mesolithic and Neolithic cultures.

Showing 4661–4680 of 8594 words.