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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)

mercier
nounVery Low (Proper Noun)
/ˈmɜː.si.eɪ/A French occupational surname meaning 'merchant' or 'haberdasher', specifically one who deals in small wares, notions, or textiles. In English contexts, it is primarily recognized as a proper noun.
merckx
nounC2
/mɛːks/The surname of Eddy Merckx, a legendary Belgian professional cyclist, widely regarded as the greatest and most successful rider in the history of the sport.
mercosur
nounLow
/ˈmɜːkəʊsʊə/A major South American regional economic and political bloc.
mercouri
nounLow (Specific to cultural/historical contexts)
/mɜːˈkʊə.ri/Proper noun; a surname, most famously associated with the Greek actress and politician Melina Mercouri.
mercurate
nounverbverb-transitiveC2+
/ˈmɜːkjʊreɪt/To treat or combine with mercury or a mercury compound; a salt of mercuric acid.
mercurial
adjectivenounC1
/məːˈkjʊərɪəl/Characterized by rapid, unpredictable, and frequent changes in mood, temperament, or mind.
mercurial barometer
nounC2
/mɜːˌkjʊə.ri.əl bəˈrɒm.ɪ.tər/A type of barometer that uses a column of mercury in a glass tube to measure atmospheric pressure.
mercurialism
nounrare
/mɜːˈkjʊə.ri.ə.lɪ.zəm/A pathological condition resulting from mercury poisoning.
mercurialize
verbverb-transitiveVery rare
/mɜːˈkjʊə.ri.ə.laɪz/To treat or impregnate with mercury.
mercuric chloride
nounC2
/mɜːˌkjʊərɪk ˈklɔːraɪd/A highly toxic, white crystalline compound of mercury and chlorine, with the chemical formula HgCl₂.
mercuric oxide
nounLow
/mɜːˈkjʊər.ɪk ˈɒk.saɪd/A red or yellow powdery compound of mercury and oxygen.
mercuric sulfide
nounlow
/mɜːˌkjʊər.ɪk ˈsʌl.faɪd/A bright red, insoluble chemical compound of mercury and sulfur (HgS), occurring naturally as the mineral cinnabar.
mercuric sulphide
nounC2
/mɜːˈkjʊər.ɪk ˈsʌl.faɪd/A chemical compound with the formula HgS, existing in two forms: the red pigment vermilion and the black mineral metacinnabar.
mercurify
verb-transitiveVery Low
/məːˈkjʊərɪfʌɪ/To treat or combine with mercury.
mercurize
verb-transitiveExtremely low/Very rare
/ˈmɜː.kjʊ.raɪz/To treat, impregnate, or combine with mercury or one of its compounds.
mercurochrome
nounLow (Brand name, dated).
/məˈkjʊərəʊkrəʊm/A brand name for a topical antiseptic solution, characteristically red in colour, containing merbromin, used for minor cuts and scrapes.
mercurous chloride
nounC2
/ˈmɜːkjʊrəs ˈklɔːraɪd/A chemical compound of mercury and chlorine (Hg₂Cl₂), appearing as a white powder or crystalline solid.
mercury
nounC1
/ˈmɜːkjəri/A heavy, silvery metallic chemical element (symbol Hg) that is liquid at room temperature and used in thermometers, barometers, and electrical equipment.
mercury arc
nounC2
/ˈmɜː.kjə.ri ɑːk/An electric discharge through ionized mercury vapour, which produces intense bluish-green light.
mercury barometer
nounC1/C2
/ˈmɜː.kjə.ri bəˈrɒm.ɪ.tə/An instrument for measuring atmospheric pressure, consisting of a glass tube filled with mercury, sealed at one end and inverted in a reservoir of mercury; the height of the mercury column indicates pressure.

Showing 3821–3840 of 8594 words.