16-letter words containing s, i, m, o
- atomic mass unit — a unit of mass used to express atomic and molecular weights that is equal to one twelfth of the mass of an atom of carbon-12. It is equivalent to 1.66 × 10–27 kg
- atomic physicist — a scientist specializing in atomic physics
- atomic structure — the concept of an atom as a central positively charged nucleus consisting of protons and neutrons surrounded by a number of electrons. The number of electrons is equal to the number of protons: the whole entity is thus electrically neutral
- atwood's machine — a device consisting of two unequal masses connected by a string passed over a pulley, used to illustrate the laws of motion.
- authoritarianism — Authoritarianism is the state of being authoritarian or the belief that people with power, especially the State, have the right to control other people's actions.
- automatic pistol — a type of pistol having a mechanism that throws out the empty shell, puts in a new one, and prepares the pistol to be fired again.
- axis of symmetry — Mathematics. a straight line for which every point on a given curve has corresponding to it another point such that the line connecting the two points is bisected by the given line.
- background music — music of any kind that is played while some other activity is going on, so that people do not actively attend to it
- balkan mountains — a mountain range extending across Bulgaria from the Black Sea to the eastern border. Highest peak: Mount Botev, 2376 m (7793 ft)
- baron tweedsmuir — the title of Scottish novelist John Buchan
- bartholomeu dias — Bartholomeu [bahr-too-loo-me-oo] /ˌbɑr tʊ lʊˈmɛ ʊ/ (Show IPA), c1450–1500, Portuguese navigator: discoverer of the Cape of Good Hope.
- basal metabolism — the amount of energy required by an individual in the resting state, for such functions as breathing and circulation of the blood
- basic dichromate — an orange-red, amorphous, water-insoluble powder, Bi 2 O 3 ⋅2CrO 3 , used chiefly as a pigment in paints.
- bed-sitting room — a combined bedroom and sitting room serving as a one-room apartment
- belgian malinois — one of a Belgian breed of medium-sized dogs having a short coat, tan to dark brown in color, a black mask, and erect ears, bred originally as a sheepherding dog.
- benito mussolini — Benito [buh-nee-toh;; Italian be-nee-taw] /bəˈni toʊ;; Italian bɛˈni tɔ/ (Show IPA), (I"Il Duce") 1883–1945, Italian Fascist leader: premier of Italy 1922–43.
- benoit samuelson — Joan (Joan Benoit) born 1957, U.S. distance runner: first Olympic marathon women's winner, 1984.
- bertillon system — a system formerly in use for identifying persons, esp criminals, by means of a detailed record of physical characteristics
- binet-simon test — an intelligence test that consists of questions, problems, and things to do, graded in terms of mental age
- biometeorologist — the scientific study of the effects of natural or artificial atmospheric conditions, as temperature and humidity, on living organisms.
- boatswain's mate — a job classification in the US navy
- bornholm disease — an epidemic virus infection characterized by pain round the base of the chest
- boston cream pie — a cake of two layers with icing and a creamy filling
- braille embosser — Braille printer
- british columbia — a province of W Canada, on the Pacific coast: largely mountainous with extensive forests, rich mineral resources, and important fisheries. Capital: Victoria. Pop: 4 400 057 (2011 est). Area: 930 532 sq km (359 279 sq miles)
- bronchial asthma — asthma.
- brood parasitism — a type of parasitism in which a bird (brood parasite), as a cowbird or European cuckoo, lays and abandons its eggs in the nest of another species
- broomstick skirt — a full, gathered or pleated skirt that has characteristic tiny creases obtained by wetting the skirt and winding it around a broomstick to dry.
- busman's holiday — If you have a holiday, but spend it doing something similar to your usual work, you can refer to it as a busman's holiday.
- camomile shampoo — a liquid or cream preparation of soap or detergent with camomile extract to wash the hair
- capsizing moment — the moment of an upsetting couple.
- category mistake — a sentence that says of something in one category what can only intelligibly be said of something in another, as when speaking of the mind located in space
- chemical weapons — toxic chemicals used as weapons
- chemolithotrophs — Plural form of chemolithotroph.
- chemoluminescent — (chemistry) Exhibiting chemoluminescence.
- chemonucleolysis — treatment for a herniated spinal disk in which chymopapain is injected into the disk to dissolve tissue.
- chemoprophylaxis — the prevention of disease using chemical drugs
- chicken mushroom — an edible yellow-to-orange bracket fungus, Laetiporus sulphureus, common on tree trunks, in which it causes wood decay.
- chinese cinnamon — cassia (def 1).
- chinese primrose — any plant of the genus Primula, as P. vulgaris (English primrose) of Europe, having yellow flowers, or P. sinensis (Chinese primrose) of China, having flowers in a variety of colors. Compare primrose family.
- cholesterolaemia — the presence of abnormally high levels of cholesterol in the blood
- chorioamnionitis — Inflammation of the fetal membranes (amnion and chorion) due to a bacterial infection, most often associated with prolonged labour.
- choriomeningitis — (medicine) A form of cerebral meningitis associated with inflammation of the choroid plexus.
- christmas factor — a protein implicated in the process of blood clotting, the lack of which causes Christmas disease
- chromatographies — Plural form of chromatography.
- chymotrypsinogen — the inactive precursor of chymotrypsin
- chytridiomycosis — An infectious disease of amphibians caused by the chytrid fungus.
- circumscriptions — Plural form of circumscription.
- circumsporozoite — (biology, of a protein) Located on the surface of a sporozoite (and involved in host cell recognition and invasion); abbreviated as CS.
- clitoridectomies — Plural form of clitoridectomy.