| megohm | (noun) a unit of resistance equal to one million ohms | - |
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| megrim | (noun) a severe recurring vascular headache; occurs more frequently in women than men | Synonyms: hemicrania, migraine, sick headache |
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| megrims | (noun) a state of depression | Synonyms: blue devils, blues, vapors, vapours |
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| mei | (noun) Japanese ornamental tree with fragrant white or pink blossoms and small yellow fruits | Synonyms: Japanese apricot, Prunus mume |
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| meiosis | (noun) understatement for rhetorical effect (especially when expressing an affirmative by negating its contrary) | Synonyms: litotes |
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| (noun) (genetics) cell division that produces reproductive cells in sexually reproducing organisms; the nucleus divides into four nuclei each containing half the chromosome number (leading to gametes in animals and spores in plants) | Synonyms: miosis, reduction division |
| meiotic | (adjective) of or relating to meiosis | - |
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| meitnerium | (noun) a radioactive transuranic element, with atomic number 109 | Synonyms: atomic number 109, element 109, Mt |
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| melaena | (noun) abnormally dark tarry feces containing blood (usually from gastrointestinal bleeding) | Synonyms: melena |
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| melagra | (noun) rheumatic or myalgic pains in the arms or legs | - |
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| melamine | (noun) a white crystalline organic base; used mainly in making melamine resins | Synonyms: cyanuramide |
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| melancholia | (noun) extreme depression characterized by tearful sadness and irrational fears | - |
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| melancholiac | (noun) someone subject to melancholia | Synonyms: melancholic |
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| melancholic | (adjective) characterized by or causing or expressing sadness | Synonyms: melancholy |
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| (noun) someone subject to melancholia | Synonyms: melancholiac |
| melancholy | (adjective) grave or even gloomy in character | Synonyms: somber, sombre |
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| (adjective) characterized by or causing or expressing sadness | Synonyms: melancholic |
| (noun) a humor that was once believed to be secreted by the kidneys or spleen and to cause sadness and melancholy | Synonyms: black bile |
| (noun) a feeling of thoughtful sadness | - |
| (noun) a constitutional tendency to be gloomy and depressed | - |
| melange | (noun) a motley assortment of things | Synonyms: farrago, gallimaufry, hodgepodge, hotchpotch, mingle-mangle, mishmash, oddments, odds and ends, omnium-gatherum, ragbag |
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| melanin | (noun) insoluble pigments that account for the color of e.g. skin and scales and feathers | - |
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| melanise | (verb) make or become black | Synonyms: black, blacken, melanize |
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| (verb) convert into, or infiltrate with melanin | Synonyms: melanize |
| melanism | (noun) a condition characterized by abnormal deposits of melanin (especially in the skin) | Synonyms: melanosis |
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| melanize | (verb) make or become black | Synonyms: black, blacken, melanise |
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| (verb) convert into, or infiltrate with melanin | Synonyms: melanise |
| melanoblast | (noun) an epidermal cell that is a precursor of a melanocyte | - |
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| melanocyte | (noun) a cell in the basal layer of the epidermis that produces melanin under the control of the melanocyte-stimulating hormone | - |
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| melanoderma | (noun) abnormally dark skin caused by increased deposits of melatonin | - |
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| melanoma | (noun) any of several malignant neoplasms (usually of the skin) consisting of melanocytes | Synonyms: malignant melanoma |
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| melanosis | (noun) a condition characterized by abnormal deposits of melanin (especially in the skin) | Synonyms: melanism |
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| melasma | (noun) a tan discoloration of a woman's face that is associated with pregnancy or with the use of oral contraceptives | Synonyms: chloasma, mask of pregnancy |
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| melatonin | (noun) hormone secreted by the pineal gland | - |
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| meld | (noun) a form of rummy using two decks of cards and four jokers; jokers and deuces are wild; the object is to form groups of the same rank | Synonyms: basket rummy, canasta |
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| (verb) mix together different elements | Synonyms: blend, coalesce, combine, commingle, conflate, flux, fuse, immix, merge, mix |
| (verb) lose its distinct outline or shape; blend gradually | Synonyms: melt |
| (verb) announce for a score; of cards in a card game | - |
| melee | (noun) a noisy riotous fight | Synonyms: battle royal, scrimmage |
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| melena | (noun) abnormally dark tarry feces containing blood (usually from gastrointestinal bleeding) | Synonyms: melaena |
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| melilot | (noun) erect annual or biennial plant grown extensively especially for hay and soil improvement | Synonyms: melilotus, sweet clover |
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| melilotus | (noun) erect annual or biennial plant grown extensively especially for hay and soil improvement | Synonyms: melilot, sweet clover |
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| meliorate | (verb) get better | Synonyms: ameliorate, better, improve |
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| (verb) to make better | Synonyms: ameliorate, amend, better, improve |
| melioration | (noun) the act of relieving ills and changing for the better | Synonyms: amelioration, betterment |
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| (noun) the linguistic process in which over a period of time a word grows more positive in connotation or more elevated in meaning | - |
| (noun) a condition superior to an earlier condition | Synonyms: improvement |
| meliorative | (adjective) tending to ameliorate | Synonyms: ameliorating, ameliorative, amelioratory |
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| meliorism | (noun) the belief that the world can be made better by human effort | - |
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| meliorist | (noun) a disputant who advocates reform | Synonyms: crusader, reformer, reformist, social reformer |
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| mellifluous | (adjective) pleasing to the ear | Synonyms: dulcet, honeyed, mellisonant, sweet |
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| mellisonant | (adjective) pleasing to the ear | Synonyms: dulcet, honeyed, mellifluous, sweet |
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| mellitate | (noun) a salt of mellitic acid. | - |
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| mellow | (adjective) slightly and pleasantly intoxicated from alcohol or a drug (especially marijuana) | Synonyms: high |
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| (adjective) unhurried and relaxed | Synonyms: laid-back |
| (adjective) having a full and pleasing flavor through proper aging | Synonyms: mellowed |
| (adjective) softened through age or experience | Synonyms: mellowed |
| (adverb) in a mellow manner | Synonyms: mellowly |
| (verb) make or grow (more) mellow | - |
| (verb) soften, make mellow | - |
| (verb) become more relaxed, easygoing, or genial | Synonyms: mellow out, melt |
| mellowed | (adjective) having a full and pleasing flavor through proper aging | Synonyms: mellow |
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| (adjective) softened through age or experience | Synonyms: mellow |
| mellowing | (noun) the process of becoming mellow | - |
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| mellowingly | (adverb) so as to mellow | - |
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| mellowly | (adverb) in a mellow manner | Synonyms: mellow |
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| mellowness | (noun) the property of a sensation that is rich and pleasing | Synonyms: fullness, richness |
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| (noun) a soft shade of a color | - |
| (noun) geniality, as through the effects of alcohol or marijuana | - |
| (noun) a taste (especially of fruit) that is ripe and of full flavor | - |
| (noun) a feeling of good humor and sympathy through maturity or intoxication or a relaxed state | - |
| melodic | (adjective) containing or constituting or characterized by pleasing melody | Synonyms: melodious, musical |
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| (adjective) of or relating to melody | - |
| melodically | (adverb) with respect to melody | - |
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| melodious | (adjective) containing or constituting or characterized by pleasing melody | Synonyms: melodic, musical |
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| (adjective) having a musical sound; especially a pleasing tune | Synonyms: tuneful |
| melodiously | (adverb) in a melodious manner | Synonyms: tunefully |
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| melodiousness | (noun) the property of having a melody | Synonyms: tunefulness |
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| melodise | (verb) supply a melody for | Synonyms: melodize |
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| melodize | (verb) supply a melody for | Synonyms: melodise |
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| melodrama | (noun) an extravagant comedy in which action is more salient than characterization | - |
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| melodramatic | (adjective) characteristic of acting or a stage performance; often affected | Synonyms: histrionic |
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| (adjective) having the excitement and emotional appeal of melodrama | - |
| melodramatically | (adverb) in an overly emotional manner | - |
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| (adverb) as in a melodrama | - |
| melody | (noun) the perception of pleasant arrangements of musical notes | Synonyms: tonal pattern |
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| (noun) a succession of notes forming a distinctive sequence | Synonyms: air, line, melodic line, melodic phrase, strain, tune |
| meloid | (noun) beetle that produces a secretion that blisters the skin | Synonyms: blister beetle |
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| melon | (noun) any of numerous fruits of the gourd family having a hard rind and sweet juicy flesh | - |
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| (noun) any of various fruit of cucurbitaceous vines including: muskmelons, watermelons, cantaloupes, cucumbers | Synonyms: melon vine |
| melosa | (noun) South American herb with sticky glandular foliage; source of madia oil | Synonyms: Chile tarweed, madia oil plant, Madia sativa |
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| melphalan | (noun) antineoplastic drug (trade name Alkeran) used to treat multiple myeloma and some other malignancies | Synonyms: Alkeran |
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| melt | (noun) the process whereby heat changes something from a solid to a liquid | Synonyms: melting, thaw, thawing |
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| (verb) become or cause to become soft or liquid | Synonyms: dethaw, dissolve, thaw, unfreeze, unthaw |
| (verb) reduce or cause to be reduced from a solid to a liquid state, usually by heating | Synonyms: melt down, run |
| (verb) lose its distinct outline or shape; blend gradually | Synonyms: meld |
| (verb) become more relaxed, easygoing, or genial | Synonyms: mellow, mellow out |
| (verb) become less clearly visible or distinguishable; disappear gradually or seemingly | Synonyms: fade |
| (verb) become less intense and fade away gradually | Synonyms: disappear, evaporate |
| meltability | (noun) Capability of being reduced from a solid to a liquid state usually by heat. | - |
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| meltable | (adjective) capable of melting | Synonyms: disintegrable |
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| meltdown | (noun) a disaster comparable to a nuclear meltdown | - |
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| (noun) severe overheating of the core of a nuclear reactor resulting in the core melting and radiation escaping | Synonyms: nuclear meltdown |
| melted | (adjective) changed from a solid to a liquid state | Synonyms: liquid, liquified |
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| melter | (noun) a worker who melts substances (metal or wax etc.) | - |
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| melting | (adjective) becoming liquid | Synonyms: liquescent |
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| (noun) the process whereby heat changes something from a solid to a liquid | Synonyms: melt, thaw, thawing |
| meltwater | (noun) melted snow or ice | - |
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| mem | (noun) the 13th letter of the Hebrew alphabet | - |
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| member | (noun) an external body part that projects from the body | Synonyms: appendage, extremity |
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| (noun) the male sex organ | Synonyms: penis, phallus |
| (noun) an organization that is a member of another organization (especially a state that belongs to a group of nations) | - |
| (noun) one of the persons who compose a social group (especially individuals who have joined and participate in a group organization) | Synonyms: fellow member |
| (noun) anything that belongs to a set or class | - |
| membered | (adjective) having members; normally used in chemistry in combination with a number | - |
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| memberless | (adjective) of a group or set having no members | - |
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| membership | (noun) the body of members of an organization or group | Synonyms: rank |
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| (noun) the state of being a member | - |
| membrane | (noun) a thin pliable sheet of material | - |
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| (noun) a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants | Synonyms: tissue layer |
| membranophone | (noun) a musical percussion instrument; usually consists of a hollow cylinder with a membrane stretched across each end | Synonyms: drum, tympan |
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| membranous | (adjective) relating to or made of or similar to a membrane | - |
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| (adjective) characterized by formation of a membrane (or something resembling a membrane) | Synonyms: membrane-forming |
| meme | (noun) a cultural unit (an idea or value or pattern of behavior) that is passed from one person to another by non-genetic means (as by imitation) | - |
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| memento | (noun) a reminder of past events | Synonyms: souvenir |
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| memetics | (noun) a theory of mental content based on an analogy with Darwinian evolution. | - |
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| memo | (noun) a written proposal or reminder | Synonyms: memoranda, memorandum |
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| memoir | (noun) an account of the author's personal experiences | - |
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| (noun) an essay on a scientific or scholarly topic | - |
| memorabilia | (noun) a record of things worth remembering | - |
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| memorability | (noun) the quality of being worth remembering | - |
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| memorable | (adjective) worth remembering | - |
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| memorably | (adverb) in a memorable manner | Synonyms: unforgettably |
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| memoranda | (noun) a written proposal or reminder | Synonyms: memo, memorandum |
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| memorandum | (noun) a written proposal or reminder | Synonyms: memo, memoranda |
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| memorial | (noun) a structure erected to commemorate persons or events | Synonyms: monument |
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| (noun) a recognition of meritorious service | Synonyms: commemoration, remembrance |
| (noun) a written statement of facts submitted in conjunction with a petition to an authority | - |
| memorialisation | (noun) a ceremony to honor the memory of someone or something | Synonyms: commemoration, memorialization |
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| memorialise | (verb) be or provide a memorial to a person or an event | Synonyms: commemorate, immortalise, immortalize, memorialize |
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| (verb) address in a memorial | Synonyms: memorialize |
| memorialization | (noun) a ceremony to honor the memory of someone or something | Synonyms: commemoration, memorialisation |
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| memorialize | (verb) be or provide a memorial to a person or an event | Synonyms: commemorate, immortalise, immortalize, memorialise |
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| (verb) address in a memorial | Synonyms: memorialise |
| memorisation | (noun) learning so as to be able to remember verbatim | Synonyms: committal to memory, memorization |
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| memorise | (verb) commit to memory; learn by heart | Synonyms: con, learn, memorize |
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| memoriser | (noun) a person who learns by rote | Synonyms: memorizer |
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| memorization | (noun) learning so as to be able to remember verbatim | Synonyms: committal to memory, memorisation |
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| memorize | (verb) commit to memory; learn by heart | Synonyms: con, learn, memorise |
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| memorizer | (noun) a person who learns by rote | Synonyms: memoriser |
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| memory | (noun) an electronic memory device | Synonyms: computer memory, computer storage, memory board, storage, store |
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| (noun) the power of retaining and recalling past experience | Synonyms: retention, retentiveness, retentivity |
| (noun) the cognitive processes whereby past experience is remembered | Synonyms: remembering |
| (noun) something that is remembered | - |
| (noun) the area of cognitive psychology that studies memory processes | - |
| memsahib | (noun) a woman sahib | - |
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