17-letter words containing t, u, n, d, r
- reduction formula — a formula, such as sin (90° ± A) = cos A, expressing the values of a trigonometric function of any angle greater than 90° in terms of a function of an acute angle
- regulated tenancy — (in Britain) the letting of a dwelling by a nonresident private landlord, usually at a registered fair rent, from which the landlord cannot evict the tenant without a possession order from a court
- reported question — A reported question is a question which is reported using a clause beginning with a word such as 'why' or 'whether', as in 'I asked her why she'd done it'.
- rhodope mountains — a mountain range in SE Europe, in the Balkan Peninsula extending along the border between Bulgaria and Greece. Highest peak: Golyam Perelik (Bulgaria), 2191 m (7188 ft)
- ring-tailed lemur — a Madagascan prosimian primate, Lemur catta, with a long black and white ringed tail
- road construction — the building of roads
- round-trip ticket — a ticket entitling a passenger to travel to his or her destination and back again
- rural development — social or economic activities or initiatives designed to improve the standard of living in areas far away from large towns or cities
- russell, bertrand — Bertrand Russell
- samurai tradition — the body of customs, thought, practices, etc belonging to the samurai warrior caste of Japan
- san andreas fault — an active strike-slip fault in W United States, extending from San Francisco to S California and forming the on-land portion of the western margin of the North American Plate.
- saturation diving — a method of prolonged diving, using an underwater habitat to allow divers to remain in the high-pressure environment of the ocean depths long enough for their body tissues to become saturated with the inert components of the pressurized gas mixture that they breathe: when this condition is reached, the amount of time required for decompression remains the same, whether the dive lasts a day, a week, or a month.
- secondary product — a product that is not the main product of an industry; a by-product
- secondary quality — one of the qualities attributed by the mind to an object perceived, such as color, temperature, or taste.
- self-introduction — the act of introducing or the state of being introduced.
- self-reproduction — the act or process of reproducing.
- semi-manufactured — the making of goods or wares by manual labor or by machinery, especially on a large scale: the manufacture of television sets.
- sheltered housing — accommodation designed esp for the elderly or infirm consisting of a group of individual premises, often with some shared facilities and a caretaker
- shetland pullover — a thick woollen sweater made from Shetland wool
- shipping industry — the industry concerned with transporting freight, esp by ship
- sir arthur harden — Sir Arthur, 1865–1940, English biochemist: Nobel Prize 1929.
- sodium propionate — a transparent, crystalline, water-soluble powder, C 3 H 5 NaO 2 , used in foodstuffs to prevent mold growth, and in medicine as a fungicide.
- 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 farmingdale — a town on central Long Island, in SE New York.
- south frigid zone — the part of the earth's surface between the Antarctic Circle and the South Pole.
- southern rhodesia — a former name (until 1964) of Zimbabwe (def 1).
- southern sporades — a group of Greek islands in the Aegean, including the Dodecanese, lying off the SW coast of Turkey
- southern studfish — See under studfish.
- square and rabbet — annulet (def 1).
- stand your ground — relating to or denoting a legal principle or law that eliminates the duty to retreat by allowing, as a first response, self-defense by deadly force: We’re proud to represent Florida, the first stand your ground state.
- 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.
- stannous fluoride — a white, crystalline powder, SnF 2 , slightly soluble in water: used as a source of fluorine in the prevention of dental caries, especially as a toothpaste additive.
- strange interlude — a play (1928) by Eugene O'Neill.
- subordinated debt — a debt that an unsecured creditor can only claim, in the event of a liquidation, after the claims of secured creditors have been paid
- 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.
- surrender to bail — to present oneself at court at the appointed time after having been on bail
- sustained-release — (of a drug or fertilizer) capable of gradual release of an active agent over a period of time, allowing for a sustained effect; timed-release; long-acting; prolonged-action; slow-release.
- tanenbaum, andrew — Andrew Tanenbaum
- teacher education — training to become a teacher, usually at an institution of higher education
- temporomandibular — of, relating to, or situated near the hinge joint formed by the lower jaw and the temporal bone of the skull.
- the underemployed — underemployed people
- theodore sturgeon — Theodore (Hamilton) 1918–85, U.S. science-fiction writer.
- therapeutic index — the ratio between the dosage of a drug that causes a lethal effect and the dosage that causes a therapeutic effect.
- thermal diffusion — the separation of constituents, often isotopes, of a fluid under the influence of a temperature gradient.
- thermal underwear — underwear designed to retain body heat in cold temperatures.
- third-degree burn — a burned place or area: a burn where fire had ripped through the forest.
- thread escutcheon — a raised metal rim around a keyhole.
- to lose your mind — If you say that someone is losing their mind, you mean that they are becoming mad.
- to open your mind — If something opens your mind to new ideas or experiences, it makes you more willing to accept them or try them.