18-letter words containing t, o, r, s, m, u
- incommensurability — not commensurable; having no common basis, measure, or standard of comparison.
- industrial diamond — a small often synthetic diamond, valueless as a gemstone, used in cutting tools, abrasives, etc
- inner automorphism — an automorphism that maps an element x into an element of the form axa −1 where a −1 is the inverse of a.
- instruction manual — how-to, usage guide
- instrument station — station (def 14a).
- involuntary muscle — muscle: contracts involuntarily
- isthmus of corinth — a narrow strip of land between the Gulf of Corinth and the Saronic Gulf: crossed by the Corinth Canal making navigation possible between the gulfs
- jump through hoops — If someone makes you jump through hoops, they make you do lots of difficult or boring things in order to please them or achieve something.
- literae humaniores — (at Oxford University) the faculty concerned with Greek and Latin literature, ancient history, and philosophy; classics
- logarithmus dualis — (mathematics) (ld) Latin for logarithm base two. More commonly written as "log" with a subscript "2". Roughly the number of bits required to represent an integer.
- loschmidt's number — the number of molecules in one cubic centimeter of an ideal gas at standard temperature and pressure, equal to 2.687 × 10 19.
- magistrate's court — a court having limited jurisdiction over minor civil and criminal matters, as matters of contract not exceeding a particular amount of money.
- magistrates' court — law: handles minor crimes
- manufactured goods — products made by machine
- mato grosso do sul — a state of W central Brazil: formed in 1979 from part of Mato Grosso state. Capital: Campo Grande. Pop: 2 140 624 (2002). Area: 350 548 sq km (135 318 sq miles)
- meurthe-et-moselle — a department in NE France. 2038 sq. mi. (5280 sq. km). Capital: Nancy.
- microencapsulation — the process of enclosing chemical substances in microcapsules.
- microwave spectrum — a spectrum of electromagnetic radiations whose wavelengths fall in the microwave range.
- misunderestimation — (nonstandard) An inaccurate underestimation, or an act of misunderestimating.
- modulus of torsion — a coefficient of elasticity of a substance, expressing the ratio between the force per unit area (shearing stress) that laterally deforms the substance and the shear (shearing strain) that is produced by this force.
- molecular genetics — a subdivision of genetics concerned with the structure and function of genes at the molecular level.
- molecular spectrum — the spectrum of light emitted or absorbed by a species of molecule.
- mortgage insurance — policy to compensate for property loan payments
- mosquito repellent — a chemical substance, such as a spray or lotion, applied to the body to prevent mosquitoes biting
- multi-user dungeon — Multi-User Dimension
- multiple ownership — ownership by several people or organizations
- multiple sclerosis — a chronic degenerative, often episodic disease of the central nervous system marked by patchy destruction of the myelin that surrounds and insulates nerve fibers, usually appearing in young adulthood and manifested by one or more mild to severe neural and muscular impairments, as spastic weakness in one or more limbs, local sensory losses, bladder dysfunction, or visual disturbances.
- muscular dystrophy — a hereditary disease characterized by gradual wasting of the muscles with replacement by scar tissue and fat, sometimes also affecting the heart.
- music to your ears — If something that you hear is music to your ears, it makes you feel very happy.
- national guardsman — guardsman (def 2).
- neutrino astronomy — the branch of astronomy dealing with the detection and measurement of neutrinos emitted by the sun and other celestial objects.
- nocturnal emission — the release of semen during sleep, often during a sexual dream.
- non-circumstantial — of pertaining to, or derived from circumstances: a circumstantial result.
- nonstriated muscle — smooth muscle
- outer automorphism — an automorphism that is not an inner automorphism.
- potassium chlorate — a white or colorless, crystalline, water-soluble, poisonous solid, KClO 3 , used chiefly as an oxidizing agent in the manufacture of explosives, fireworks, matches, bleaches, and disinfectants.
- potassium chloride — a white or colorless, crystalline, water-soluble solid, KCl, used chiefly in the manufacture of fertilizers and mineral water, and as a source of other potassium compounds.
- potassium fluoride — a white, crystalline, hygroscopic, toxic powder, KF, used chiefly as an insecticide, a disinfectant, and in etching glass.
- potassium myronate — sinigrin.
- precious moonstone — moonstone (def 1).
- presumption of law — a presumption based upon a policy of law or a general rule and not upon the facts or evidence in an individual case.
- programme of study — the prescribed syllabus that pupils must be taught at each key stage in the National Curriculum
- prometheus unbound — a drama in verse (1820) by Shelley.
- pulmonic airstream — a current of lung air set in motion by the respiratory muscles in the production of speech.
- put the mockers on — stop, thwart
- resuscitation room — an intensive care unit
- saturation bombing — intense area bombing intended to destroy everything in the target area.
- second triumvirate — the coalition and joint rule of the Roman Empire by Antony, Lepidus, and Octavian, begun in 43 bc
- semiprecious stone — See at semiprecious.
- shotgun microphone — a directional microphone with a narrow-angle range of sensitivity.