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17-letter words containing f, a, d

  • pyrosulfuric acid — a strong, crystalline acid, H2S2O7, prepared commercially as a heavy, oily, fuming liquid: used in making explosives and dyes, as a sulfating agent, etc.
  • quadratic formula — the formula for determining theroots of a quadratic equation from its coefficients: .
  • qualified success — If you describe something as a qualified success, you mean that it is only partly successful.
  • receding forehead — a forehead which slopes backwards
  • 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
  • refractory period — a short period after a nerve or muscle cell fires during which the cell cannot respond to additional stimulation.
  • rheumatoid factor — an antibody that is found in the blood of many persons afflicted with rheumatoid arthritis and that reacts against globulins in the blood.
  • road-fund licence — a licence showing that the tax payable in respect of a motor vehicle has been paid
  • russian wolfhound — borzoi.
  • sacrifice paddock — a grassed area allowed to be grazed completely, to be cultivated and resown later
  • sacrificial anode — Chemistry. an anode that is attached to a metal object subject to electrolysis and is decomposed instead of the object.
  • 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.
  • sanitary landfill — landfill.
  • sawed-off shotgun — rifle with a short barrel
  • self-acknowledged — widely recognized; generally accepted: an acknowledged authority on Chinese art.
  • self-administered — to manage (affairs, a government, etc.); have executive charge of: to administer the law.
  • self-aggrandizing — increase of one's own power, wealth, etc., usually aggressively.
  • self-belay device — (in climbing) a device used to pay out a safety rope as required
  • self-commendation — the act of commending; recommendation; praise: commendation for a job well done.
  • self-condemnation — the act of condemning.
  • self-depreciating — self-deprecating.
  • self-dissociation — an act or instance of dissociating.
  • semi-manufactured — the making of goods or wares by manual labor or by machinery, especially on a large scale: the manufacture of television sets.
  • sidesaddle flower — a pitcher plant, Sarracenia purpurea.
  • sound effects man — a man who produces sounds artificially or reproduces them from a recording, etc, to create a theatrical effect, such as the bringing together of two halves of a hollow coconut shell to simulate a horse's gallop. Such sound effects are used in plays, films, etc
  • south farmingdale — a town on central Long Island, in SE New York.
  • 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 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.
  • store and forward — to store (information) in a computer for later forward transmission through a telecommunication network
  • stratford-on-avon — a town in SW Warwickshire, in central England, on the Avon River: birthplace and burial place of Shakespeare.
  • stratified sample — a sample that is not drawn at random from the whole population, but separately from a number of disjoint strata of the population in order to ensure a more representative sample
  • sulfurated potash — a yellowish-brown mixture consisting mainly of potassium polysulfides and potassium thiosulfate, used in treating mange.
  • surface condenser — a device condensing steam or vapor by passing it over a cool surface.
  • sustentation fund — a fund, esp in the Church of Scotland, to augment the support of ministers
  • sword of damocles — Damocles (def 2).
  • take advantage of — any state, circumstance, opportunity, or means specially favorable to success, interest, or any desired end: the advantage of a good education.
  • take the edge off — If something takes the edge off a situation, usually an unpleasant one, it weakens its effect or intensity.
  • the confederation — the original 13 states of the United States of America constituted under the Articles of Confederation and superseded by the more formal union established in 1789
  • the faint-hearted — people of a nervous disposition
  • the life and soul — a person regarded as the main source of merriment and liveliness
  • thermal diffusion — the separation of constituents, often isotopes, of a fluid under the influence of a temperature gradient.
  • thiosulfuric acid — an acid, H 2 S 2 O 3 , that may be regarded as sulfuric acid with one oxygen atom replaced by sulfur.
  • to drag your feet — If you drag your feet or drag your heels, you delay doing something or do it very slowly because you do not want to do it.
  • to play the field — If someone plays the field, they have a number of different romantic or sexual relationships.
  • traffic diversion — a special route arranged for traffic to follow when the normal route cannot be used
  • trapdoor function — a function defined from data by means of a mathematical procedure in such a way that it is easy to obtain the function when the data are known, but when the procedure and data are not known it becomes very difficult to determine the original data: used in cryptography, where the data are the characters of the plain text, or message, and the trapdoor function is the cryptogram.
  • twelfth amendment — an amendment to the U.S. Constitution, ratified in 1804, providing for election of the president and vice president by the electoral college: should there be no majority vote for one person, the House of Representatives (one vote per state) chooses the president and the Senate the vice president.
  • unclassified road — a road that has not been given a grade because it is of a basic standard
  • unlawful wounding — an offence committed when a person maliciously wounds another person
  • utmost good faith — a principle used in insurance contracts, legally obliging all parties to reveal to the others any information that might influence the others' decision to enter into the contract
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