15-letter words containing o, s, m, u
- sodium silicate — a substance having the general formula, Na2O.xSiO2, where x varies between 3 and 5, existing as an amorphous powder or present in a usually viscous aqueous solution
- sodium stearate — Sodium stearate is a salt of stearic acid used as a surfactant (= a substance that reduces the surface tension of a liquid and allows it to foam) in order to aid the solubility of hydrophobic substances in oral medicines.
- sodium sulphate — a solid white substance that occurs naturally as thenardite and is usually used as the white anhydrous compound (salt cake) or the white crystalline decahydrate (Glauber's salt) in making glass, detergents, and pulp. Formula: Na2SO4
- solution mining — removal of a soluble mineral by dissolving it and leaching it out, as in the Frasch process.
- sound symbolism — a nonarbitrary connection between phonetic features of linguistic items and their meanings, as in the frequent occurrence of close vowels in words denoting smallness, as petite and teeny-weeny.
- source document — a document that has been or will be transcribed to a word processor or to the memory bank of a computer
- source material — original, authoritative, or basic materials utilized in research, as diaries or manuscripts.
- south glamorgan — a county in SE Wales. 161 sq. mi. (416 sq. km).
- south milwaukee — a city in SE Wisconsin.
- souvanna phouma — Prince, 1901–84, Laotian statesman: premier 1951–54, 1956–58, 1960, and 1962–75.
- spanish customs — irregular practices among a group of workers to gain increased financial allowances, reduced working hours, etc
- specific volume — volume per unit mass; the reciprocal of density.
- squirrel monkey — either of two small, long-tailed monkeys, Saimiri oerstedii of Central America and S. sciureus of South America, having a small white face with black muzzle and gold, brown, or greenish fur: S. oerstedii is endangered.
- st. ulmo's fire — St. Elmo's fire.
- stamping ground — a habitual or favorite haunt.
- stand-up comedy — telling jokes to an audience
- statutory crime — a wrong punishable under a statute, rather than at common law.
- steering column — the shaft that connects the steering wheel to the steering gear assembly of an automotive vehicle.
- stomping ground — a habitual or favorite haunt.
- storm insurance — insurance cover against damage caused by windstorms
- strombuliferous — having organs coiled as spirals
- strontium oxide — a white insoluble solid substance used in making strontium salts and purifying sugar. Formula: SrO
- stumbling block — an obstacle or hindrance to progress, belief, or understanding.
- subalimentation — hypoalimentation.
- subcommissioner — a member of a subcommission
- suboptimization — a situation which is less than optimal
- suicide bombing — a terrorist bomb attack in which the perpetrator knows that he or she will be killed in the explosion
- sully-prudhomme — René François Armand [ruh-ney frahn-swa ar-mahn] /rəˈneɪ frɑ̃ˈswa arˈmɑ̃/ (Show IPA), 1839–1907, French poet: Nobel prize 1901.
- sumatra camphor — borneol.
- summary offence — an offence that is triable in a magistrates' court
- summer flounder — a flounder, Paralichthys dentatus, inhabiting shallow waters from Cape Cod to South Carolina, valued as food.
- summer holidays — the time when children do not go to school in the summer
- summer solstice — the solstice on or about June 21st that marks the beginning of summer in the Northern Hemisphere.
- super-committee — a committee with members from two or more organizations or political groups
- supergovernment — a centralized organization formed by a group of governments to enforce justice or maintain peace.
- superimposition — to impose, place, or set over, above, or on something else.
- superpatriotism — the quality of being superpatriotic
- superphenomenon — a phenomenon that is beyond the typical qualities of phenomena
- supplementation — the act or process of supplementing.
- support mission — assistance given by one military unit to another to assist in the accomplishment of the supported unit's mission.
- supporting film — a film that accompanies the main feature film in a film programme
- supreme council — the legislature of the former Soviet Union and its successor states, consisting of an upper house (Soviet of the Union or Council of the Union) whose delegates are elected on the basis of population, and a lower house (Soviet of Nationalities or Council of Nationalities) whose delegates are elected to represent the various nationalities.
- symmetric group — the group of all permutations of a finite set.
- tantalus monkey — a long-tailed African monkey, Cercopithecus tantalus (or C. aethiops tantalus), of central African grasslands, having a long face framed by upswept whiskers.
- tarsometatarsus — the large bone in the lower leg of a bird with which the toe bones articulate, formed by the fusion of tarsal and metatarsal bones.
- tatra mountains — a mountain range along the border between Slovakia and Poland, extending for about 64 km (40 miles): the highest range of the central Carpathians. Highest peak: Gerlachovka, 2663 m (8737 ft)
- teamsters union — the unofficial name of the International Brotherhood of Teamsters, Chauffeurs, Warehousemen, and Helpers of America.
- temerariousness — the state or condition of being audacious
- tetrasporangium — a sporangium containing four asexual spores.
- the midas touch — ability to make money