17-letter words containing o, c, u, r
- smoothing circuit — a circuit used to remove ripple from the output of a direct current power supply
- socratic elenchus — the drawing out of the consequences of a position in order to show them to be contrary to some accepted position
- sodium bichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
- sodium dichromate — a red or orange crystalline, water-soluble solid, Na 2 Cr 2 O 7 ⋅2H 2 O, used as an oxidizing agent in the manufacture of dyes and inks, as a corrosion inhibitor, a mordant, a laboratory reagent, in the tanning of leather, and in electroplating.
- sound spectrogram — a graphic representation, produced by a sound spectrograph, of the frequency, intensity, duration, and variation with time of the resonance of a sound or series of sounds.
- south west africa — a former name of Namibia.
- south-west africa — a former name of Namibia.
- spectrum disorder — any of a group of disorders each having symptoms that occur on a continuum and certain features that are shared along its spectrum but that manifest in markedly different forms and degrees. See also autism spectrum disorder.
- standard function — a subprogram provided by a translator that carries out a task, for example the computation of a mathematical function, such as sine, square root, etc
- stannous chloride — a white, crystalline, water-soluble solid, SnCl 2 ⋅2H 2 O, used chiefly as a reducing and tinning agent, and as a mordant in dyeing with cochineal.
- stockbroker tudor — a modern style of architecture popular in affluent suburban areas that is imitative of Tudor architecture
- storm in a teacup — a violent fuss or disturbance over a trivial matter
- stretch limousine — a limousine that has been lengthened to provide extra seating accommodation and more legroom
- stretching course — (in brickwork) a course of stretchers.
- subclavian groove — either of two grooves in the first rib, one for the main artery (subclavian artery) and the other for the main vein (subclavian vein) of the arm
- subscription rate — the price charged for a subscription
- subtractive color — cyan, yellow, or magenta, as used in the subtractive process of color photography.
- sufficient reason — the principle that nothing happens by pure chance, but that an explanation must always be available
- sulfonyl chloride — a colorless liquid, SO 2 Cl 2 , having a very pungent odor and corrosive to the skin and mucous membranes: used as a chlorinating or sulfonating agent.
- sunday observance — the fact of keeping Sunday as a special day when people go to church
- superaerodynamics — the branch of aerodynamics that deals with gases at very low densities.
- supercolumniation — the placing of one order of columns above another.
- superconductivity — the phenomenon of almost perfect conductivity shown by certain substances at temperatures approaching absolute zero. The recent discovery of materials that are superconductive at temperatures hundreds of degrees above absolute zero raises the possibility of revolutionary developments in the production and transmission of electrical energy.
- support mechanism — any formal system or method of providing support or assistance
- suppressor t cell — a T cell capable of inhibiting the activity of B cells and other T cells.
- supreme commander — the military officer commanding all allied forces in a theater of war.
- surface condenser — a device condensing steam or vapor by passing it over a cool surface.
- synchronous motor — a synchronous machine that acts as a motor.
- synchronous orbit — an orbit in which the orbital period of a satellite is identical to the spin period of the central body
- synchronous speed — the speed at which an alternating-current machine must operate to generate electromotive force at a given frequency.
- tactile corpuscle — an oval sense organ made of flattened cells and encapsulated nerve endings, occurring in hairless skin, as the tips of the fingers and toes, and functioning as a touch receptor.
- teacher education — training to become a teacher, usually at an institution of higher education
- technical support — an advising and troubleshooting service provided by a manufacturer, typically a software or hardware developer, to its customers, often online or on the telephone.
- temporary account — A temporary account is an account which is closed out at the end of the year.
- territorial court — a court established in U.S. territories that is empowered to hear local and federal cases.
- tertiary consumer — a carnivore at the topmost level in a food chain that feeds on other carnivores; an animal that feeds only on secondary consumers.
- the black country — the formerly heavily industrialized region of central England, northwest of Birmingham
- the carboniferous — the Carboniferous period or rock system
- the cold shoulder — a show of indifference; slight
- the rann of kutch — an extensive salt waste in W central India, and S Pakistan: consists of the Great Rann in the north and the Little Rann in the southeast; seasonal alternation between marsh and desert; some saltworks. In 1968 an international tribunal awarded about 10 per cent of the border area to Pakistan. Area: 23 000 sq km (9000 sq miles)
- the witching hour — the hour at which witches are supposed to appear, usually midnight
- therapeutic touch — the laying on of hands by a healer
- thermocoagulation — the coagulation of tissue by heat-producing high-frequency electric currents, used therapeutically to remove small growths or to create specific lesions in the brain.
- thiosulfuric acid — an acid, H 2 S 2 O 3 , that may be regarded as sulfuric acid with one oxygen atom replaced by sulfur.
- thread escutcheon — a raised metal rim around a keyhole.
- three-course meal — A three-course meal is a meal that consists of three parts served one after the other.
- to come up trumps — If you say that someone came up trumps, you mean that they did something successfully, often when they were not expected to.
- to lick your lips — If you lick your lips, you move your tongue across your lips as you think about or taste something pleasant.
- to push your luck — If you say that someone is pushing their luck, you think they are taking a bigger risk than is sensible, and may get into trouble.
- to risk your neck — If you say that someone is risking their neck, you mean they are doing something very dangerous, often in order to achieve something.