12-letter words ending with M
Dive into the specific realm of 12-letter words that conclude with the letter M. This focused section reveals the fascinating ways in which words of this particular length, ending with M, contribute to the richness of the English language. Whether it's for expanding your vocabulary, solving puzzles, or simply for the love of words, discover how these terms uniquely blend length and ending sound.
| Word | Points | Definition | Sentence example |
|---|---|---|---|
| thunderstorm | 18 | a storm resulting from strong rising air currents; heavy rain or hail along with thunder and lightning | - |
| spiritualism | 16 | concern with things of the spirit | - |
| conservatism | 19 | a political or theological orientation advocating the preservation of the best in society and opposing radical changes | - |
| obscurantism | 18 | a deliberate act intended to make something obscure | - |
| isolationism | 14 | a policy of nonparticipation in international economic and political relations | - |
| collectivism | 21 | Soviet communism | - |
| aestheticism | 19 | - | - |
| factionalism | 19 | - | - |
| dolphinarium | 20 | - | - |
| sectarianism | 16 | a narrow-minded adherence to a particular sect or party or denomination | he condemned religious sectarianism |
| bioterrorism | 16 | terrorism using the weapons of biological warfare | - |
| epithalamium | 21 | an ode honoring a bride and bridegroom | - |
| evolutionism | 17 | (biology) a scientific theory of the origin of species of plants and animals | - |
| emotionalism | 16 | emotional nature or quality | - |
| counterclaim | 18 | a claim filed in opposition to another claim in a legal action | - |
| transvestism | 17 | the practice of adopting the clothes or the manner or the sexual role of the opposite sex | - |
| epileptiform | 21 | - | - |
| epicureanism | 18 | a doctrine of hedonism that was defended by several ancient Greek philosophers | - |
| episcopalism | 20 | - | - |
| ergastoplasm | 17 | - | - |
| equisetiform | 26 | - | - |
| endomorphism | 22 | - | - |
| endothermism | 20 | - | - |
| expansionism | 23 | the doctrine of expanding the territory or the economic influence of a country | - |
| expatriatism | 23 | - | - |
| etymologicum | 22 | - | - |
| eunuchoidism | 20 | the state of being a eunuch (either because of lacking testicles or because they failed to develop) | - |
| essentialism | 14 | - | - |
| exclusionism | 23 | - | - |
| evangelicism | 20 | - | - |
| flabelliform | 22 | - | - |
| fibrilliform | 22 | - | - |
| flagelliform | 21 | - | - |
| fantasticism | 19 | - | - |
| fraternalism | 17 | - | - |
| grammaticism | 21 | - | - |
| geomagnetism | 18 | - | - |
| haptotropism | 21 | - | - |
| helianthemum | 22 | any plant of the genus Helianthemum; vigorous plants of stony alpine meadows and dry scrub regions | - |
| heliotropism | 19 | an orienting response to the sun | - |
| guerrillaism | 15 | - | - |
| gubernaculum | 19 | - | - |
| gregarianism | 16 | - | - |
| greenbackism | 23 | - | - |
| gynodioecism | 21 | - | - |
| hobgoblinism | 22 | - | - |
| hojatoleslam | 24 | - | - |
| hojatolislam | 24 | - | - |
| homothallism | 22 | - | - |
| homomorphism | 26 | similarity of form | - |
| hemimorphism | 26 | - | - |
| hibernaculum | 21 | - | - |
| heterosexism | 24 | discrimination in favor of heterosexual and against homosexual people | - |
| hyperrealism | 22 | - | - |
| hypognathism | 26 | - | - |
| hypogastrium | 23 | - | - |
| hydatidiform | 25 | - | - |
| hydrargyrism | 25 | - | - |
| hydrotropism | 23 | - | - |
| hylomorphism | 27 | - | - |
| incendiarism | 17 | malicious burning to destroy property | - |
| illiberalism | 16 | - | - |
| iconophilism | 21 | - | - |
| idiomorphism | 22 | - | - |
| immersionism | 18 | - | - |
| infundibulum | 20 | any of various funnel-shaped parts of the body (but especially the hypophyseal stalk) | - |
| inflationism | 17 | - | - |
| inhalatorium | 17 | - | - |
| justicialism | 23 | - | - |
| kurchatovium | 26 | - | - |
| involucellum | 19 | - | - |
| intuitionism | 14 | (philosophy) the doctrine that knowledge is acquired primarily by intuition | - |
| diverticulum | 20 | a herniation through the muscular wall of a tubular organ (especially the colon) | - |
| draconianism | 17 | - | - |
| doctrinarism | 17 | - | - |
| dissenterism | 15 | - | - |
| elementalism | 16 | - | - |
| duraluminium | 17 | - | - |
| dyotheletism | 21 | - | - |
| ecoterrorism | 16 | violence carried out to further the political or social objectives of the environmentalists | - |
| automorphism | 21 | - | - |
| automobilism | 18 | - | - |
| barbarianism | 18 | - | - |
| astrotourism | 14 | - | - |
| asynchronism | 22 | the relation that exists when things occur at unrelated times | - |
| bilingualism | 17 | the ability to speak two languages colloquially | - |
| bilateralism | 16 | the property of being symmetrical about a vertical plane | - |
| bimillennium | 18 | a span of 2000 years | - |
| behaviourism | 22 | an approach to psychology that emphasizes observable measurable behavior | - |
| bicameralism | 20 | - | - |
| campodeiform | 24 | - | - |
| calceamentum | 20 | - | - |
| bronchospasm | 23 | a spasm of the bronchi that makes exhalation difficult and noisy; associated with asthma and bronchitis | - |
| causationism | 16 | - | - |
| charlatanism | 19 | the dishonesty of a charlatan | - |
| characterism | 21 | - | - |
| checkerbloom | 27 | perennial purple-flowered wild mallow of western North America that is also cultivated | - |
| classicalism | 18 | a movement in literature and art during the 17th and 18th centuries in Europe that favored rationality and restraint and strict forms | - |
| cladosporium | 19 | - | - |
| chemotropism | 23 | - | - |
| chromaticism | 23 | - | - |
| chromatogram | 22 | the recording (column or paper strip) on which the constituents of a mixture are adsorbed in chromatography | - |
| chlorophytum | 27 | - | - |
| commensalism | 20 | the relation between two different kinds of organisms when one receives benefits from the other without damaging it | - |
| coalitionism | 16 | - | - |
| collegialism | 17 | - | - |
| connubialism | 18 | - | - |
| corporealism | 18 | - | - |
| countercharm | 21 | - | - |
| cuprammonium | 22 | - | - |
| cryptorchism | 26 | failure of one or both testes to move into the scrotum as the male fetus develops | - |
| cylindriform | 23 | - | - |
| crassamentum | 18 | - | - |
| cremationism | 18 | - | - |
| deinotherium | 18 | - | - |
| dialecticism | 19 | - | - |
| diamagnetism | 18 | phenomenon exhibited by materials like copper or bismuth that become magnetized in a magnetic field with a polarity opposite to the magnetic force; unlike iron they are slightly repelled by a magnet | - |
| diastrophism | 20 | the process of deformation that produces continents and ocean basins in the earth's crust | - |
| deuteroplasm | 17 | - | - |
| deviationism | 18 | ideological defection from the party line (especially from orthodox communism) | - |
| dilettantism | 15 | - | - |
| dichromatism | 22 | a deficiency of color vision in which the person can match any given hue by mixing only two other wavelengths of light (as opposed to the three wavelengths needed by people with normal color vision) | - |
| diffusionism | 21 | - | - |
| anguilliform | 18 | - | - |
| animalculism | 18 | - | - |
| androclinium | 17 | - | - |
| anecdotalism | 17 | - | - |
| antiblackism | 22 | - | - |
| anisotropism | 16 | - | - |
| allomorphism | 21 | - | - |
| amphithecium | 26 | - | - |
| appressorium | 18 | - | - |
| archesporium | 21 | primitive cell or group of cells from which a mother cell develops | - |
| antihumanism | 19 | - | - |
| antinepotism | 16 | - | - |
| antifeminism | 19 | activity indicative of belief in the superiority of men over women | - |
| apocalyptism | 23 | - | - |
| apostolicism | 18 | - | - |
| abolitionism | 16 | the doctrine that calls for the abolition of slavery | - |
| aeroembolism | 18 | pain resulting from rapid change in pressure | - |
| reflectogram | 20 | - | - |
| reductionism | 17 | a theory that all complex systems can be completely understood in terms of their components | - |
| rheomorphism | 24 | - | - |
| scapegoatism | 19 | - | - |
| saprophytism | 24 | - | - |
| rontgenogram | 16 | - | - |
| salvationism | 17 | - | - |
| saltationism | 14 | - | - |
| sensationism | 14 | - | - |
| shamateurism | 19 | - | - |
| serpentiform | 19 | - | - |
| secessionism | 16 | a doctrine that maintains the right of secession | - |
| sectionalism | 16 | a partiality for some particular place | - |
| situationism | 14 | - | - |
| sporangiolum | 17 | - | - |
| standpattism | 17 | - | - |
| stakhanovism | 24 | - | - |
| stalactiform | 19 | - | - |
| somniloquism | 25 | uttering speech while asleep | - |
| somnambulism | 20 | walking by a person who is asleep | - |
| spermogonium | 19 | - | - |
| spermagonium | 19 | - | - |
| strippergram | 19 | - | - |
| strobiliform | 19 | - | - |
| strychninism | 22 | - | - |
| stercoranism | 16 | - | - |
| stomatodaeum | 17 | - | - |
| superstardom | 17 | - | - |
| superstratum | 16 | any stratum or layer superimposed on another | - |
| supernaculum | 18 | - | - |
| superkingdom | 22 | - | - |
| superrealism | 16 | - | - |
| superpremium | 20 | - | - |
| suboperculum | 20 | - | - |
| subjectivism | 28 | (philosophy) the doctrine that knowledge and value are dependent on and limited by your subjective experience | - |
| submicrogram | 21 | - | - |
| synecdochism | 25 | - | - |
| syntheticism | 22 | - | - |
| suspensorium | 16 | - | - |
| syndactylism | 23 | birth defect in which there is partial or total webbing connecting two or more fingers or toes | - |
| synclinorium | 19 | - | - |
| symmetallism | 21 | - | - |
| sycophantism | 24 | - | - |
| theomorphism | 24 | - | - |
| theocentrism | 19 | - | - |
| transuranium | 14 | - | - |
| trimethoprim | 21 | - | - |
| trinacriform | 19 | - | - |
| trinomialism | 16 | - | - |
| traducianism | 17 | - | - |
| transformism | 19 | - | - |
| ultrarealism | 14 | - | - |
| triumphalism | 21 | - | - |
| troglodytism | 19 | - | - |
| ultraleftism | 17 | - | - |
| pulvilliform | 22 | - | - |
| psychologism | 25 | - | - |
| pteridosperm | 19 | an extinct seed-producing fernlike plant of the order Cycadofilicales (or group Pteridospermae) | - |
| psychoticism | 26 | - | - |
| quadriennium | 24 | - | - |
| prosyllogism | 20 | - | - |
| protactinium | 18 | a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead | - |
| prothalamium | 21 | a song in celebration of a marriage | - |
| propheticism | 23 | - | - |
| pseudopodium | 20 | temporary outgrowth used by some microorganisms as an organ of feeding or locomotion | - |
| pseudorandom | 18 | - | - |
| receptaculum | 20 | - | - |
| quinquennium | 32 | a period of five years | - |
| radiothorium | 18 | radioactive isotope of thorium with mass number 228 | - |
| unguentarium | 15 | - | - |
| universalism | 17 | the theological doctrine that all people will eventually be saved | - |
| unitarianism | 14 | a non-doctrinal religion that stresses individual freedom of belief and rejects the Trinity | - |
| underkingdom | 21 | - | - |
| underperform | 20 | perform less well or with less success than expected | My stocks underperformed last year |
| understratum | 15 | - | - |
| unnilpentium | 16 | - | - |
| unnilquadium | 24 | a radioactive transuranic element which has been synthesized | - |
| unnilseptium | 16 | - | - |
| voluntaryism | 20 | - | - |
| volunteerism | 17 | - | - |
| verticillium | 19 | a fungus of the genus Verticillium | - |
| verumontanum | 19 | - | - |
| zoomagnetism | 26 | - | - |
| zygomorphism | 34 | - | - |
| xylobalsamum | 28 | - | - |
| xiphisternum | 26 | - | - |
| metasomatism | 18 | - | - |
| microprogram | 21 | - | - |
| mercantilism | 18 | transactions (sales and purchases) having the objective of supplying commodities (goods and services) | - |
| mediaevalism | 20 | - | - |
| metachronism | 21 | - | - |
| metamorphism | 23 | change in the structure of rock by natural agencies such as pressure or heat or introduction of new chemical substances | - |
| metagnathism | 20 | - | - |
| mercurialism | 18 | - | - |
| mesogastrium | 17 | - | - |
| mesognathism | 20 | - | - |
| mesomorphism | 23 | - | - |
| mithridatism | 20 | - | - |
| monomorphism | 23 | - | - |
| miserabilism | 18 | - | - |
| mycodomatium | 24 | - | - |
| municipalism | 20 | - | - |
| necrophilism | 21 | an irresistible sexual attraction to dead bodies | - |
| morbilliform | 21 | of a rash that resembles that of measles | - |
| monorchidism | 22 | failure of one testes to descend into the scrotum | - |
| multiproblem | 20 | - | - |
| nonclassroom | 16 | - | - |
| negrophilism | 20 | - | - |
| neonomianism | 16 | - | - |
| noctambulism | 20 | walking by a person who is asleep | - |
| newspaperism | 21 | - | - |
| newspaperdom | 22 | - | - |
| operationism | 16 | - | - |
| nonpetroleum | 16 | - | - |
| nyctitropism | 21 | - | - |
| ornithogalum | 18 | sometimes placed in family Hyacinthaceae | - |
| orthotropism | 19 | - | - |
| paedobaptism | 21 | - | - |
| pansexualism | 23 | - | - |
| paludamentum | 19 | - | - |
| panhellenium | 19 | - | - |
| pandaemonium | 19 | - | - |
| overoptimism | 21 | - | - |
| patristicism | 18 | - | - |
| patriarchism | 21 | - | - |
| paramorphism | 23 | - | - |
| parapsychism | 26 | - | - |
| paragnathism | 20 | - | - |
| parachronism | 21 | - | - |
| parkinsonism | 20 | a degenerative disorder of the central nervous system characterized by tremor and impaired muscular coordination | - |
| parochialism | 21 | a limitation of views or interests like that defined by a local parish | - |
| philistinism | 19 | a desire for wealth and material possessions with little interest in ethical or spiritual matters | - |
| philosophism | 24 | - | - |
| perpetualism | 18 | - | - |
| perichaetium | 21 | - | - |
| perionychium | 24 | - | - |
| periostracum | 18 | - | - |
| periselenium | 16 | - | - |
| perimorphism | 23 | - | - |
| perinephrium | 21 | - | - |
| pleiochasium | 21 | - | - |
| pleiotropism | 18 | - | - |
| pleomorphism | 23 | (chemistry) the existence of different kinds of crystal of the same chemical compound | - |
| polycentrism | 21 | - | - |
| pollyannaism | 19 | - | - |
| poikilotherm | 23 | an animal whose body temperature varies with the temperature of its surroundings; any animal except birds and mammals | - |
| photorealism | 19 | - | - |
| phototropism | 21 | an orienting response to light | - |
| placentiform | 21 | - | - |
| pityrosporum | 21 | - | - |
| pictorialism | 18 | - | - |
| practicalism | 20 | - | - |
| pragmaticism | 21 | - | - |
| praseodymium | 22 | a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process | - |
| precisianism | 18 | - | - |
| precisionism | 18 | - | - |
| polytonalism | 19 | music that uses two or more different keys at the same time | - |
| polydemonism | 22 | - | - |
| polyglottism | 20 | - | - |
| polymorphism | 26 | (chemistry) the existence of different kinds of crystal of the same chemical compound | - |
| postliminium | 18 | - | - |
| postfeminism | 21 | - | - |
| propagandism | 20 | - | - |
| progymnasium | 22 | - | - |
| presenteeism | 16 | - | - |
| lithospermum | 21 | annual or perennial herbaceous or shrubby plants; cosmopolitan except Australia | - |
| laryngospasm | 20 | a closure of the larynx that blocks the passage of air to the lungs | - |
| leontopodium | 17 | edelweiss | - |
| lumbriciform | 23 | - | - |
| gravitropism | 20 | - | - |
| filiopietism | 19 | - | - |
| bulbophyllum | 26 | - | - |
| ahistoricism | 19 | - | - |
| cryptosystem | 24 | - | - |
| pseudocoelom | 19 | - | - |
| cladophyllum | 25 | - | - |
| logocentrism | 17 | - | - |
| mammilliform | 23 | - | - |
| darmstadtium | 18 | a radioactive transuranic element | - |
| evangelarium | 18 | - | - |
| ecotarianism | 16 | - | - |
| dissyllabism | 20 | - | - |
| voluntourism | 17 | - | - |
| nonaluminium | 16 | - | - |
| whataboutism | 22 | - | - |
