17-letter words containing d, u, r, f
- half-round chisel — a cold chisel with a semicircular cutting edge used for making narrow channels
- hydrofluoric acid — a colorless, fuming, corrosive liquid, HF, an aqueous solution of hydrogen fluoride, used chiefly for etching glass.
- hydrofluorocarbon — Any of a class of partly chlorinated and fluorinated hydrocarbons, used as an alternative to chlorofluorocarbons in foam production, refrigeration, and other processes.
- hydrogen fluoride — a colorless corrosive gas, HF, the anhydride of hydrofluoric acid, used chiefly as a catalyst and in the fluorination of hydrocarbons.
- in double figures — An amount or number that is in single figures is between zero and nine. An amount or number that is in double figures is between ten and ninety-nine. You can also say, for example, that an amount or number is in three figures when it is between one hundred and nine hundred and ninety-nine.
- indefinite number — a variable or unspecified number.
- induction furnace — a type of electric furnace used for melting a charge of scrap by the heat produced by its own electrical resistance.
- influence peddler — a person who arranges to obtain favors, as government contracts, from high officials on behalf of others for a fee.
- judgment of paris — the decision by Paris to award Aphrodite the golden apple of discord competed for by Aphrodite, Athena, and Hera.
- juvenile offender — a child or young person who has been found guilty of some offence, act of vandalism, or antisocial behaviour before a juvenile court
- manufactured home — a prefabricated house, assembled in modular sections.
- mare fecunditatis — (Sea of Fertility) a dark plain in the fourth quadrant and extending into the first quadrant of the face of the moon: about 160,000 sq. mi. (415,000 sq. km).
- money-market fund — a mutual fund that invests in the money market.
- northern studfish — See under studfish.
- noun pre-modifier — a noun that occurs before and modifies another noun, as toy in toy store or tour in tour group.
- odds-on favourite — a person, team, horse, etc that is regarded as the most likely to win a competition
- odour of sanctity — sanctimoniousness
- on (or off) duty — at (or temporarily relieved from) one's work, duty, etc.
- order of business — a task assigned or to be dealt with: Our first order of business is to reduce expenses.
- orfeo ed euridice — an opera (1762), with music by Christoph Willibald von Gluck.
- out of this world — the earth or globe, considered as a planet.
- performance drugs — the drugs that are taken illegally by athletes to enhance their sporting performance
- periodic function — a function of a real or complex variable that is periodic.
- plug and feathers — an apparatus for splitting stone, consisting of two tapered bars (feathers) inserted into a hole drilled into the stone, between which a narrow wedge (plug) is hammered to spread them.
- prelingually deaf — deaf from birth or having acquired deafness before learning to speak
- programming fluid — (jargon) (Or "wirewater") Coffee, unleaded coffee (decaffeinated), Cola, or any caffeinacious stimulant. Many hackers consider these essential for those all-night hacking runs.
- put in a word for — to make favourable mention of (someone); recommend
- 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: .
- 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
- refuse destructor — someone responsible for or something that destructs or destroys rubbish and waste
- 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.
- 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.
- 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.
- shutter-preferred — of or relating to a semiautomatic exposure system in which the photographer presets the shutter speed and the camera selects the aperture.
- 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 studfish — See under studfish.
- 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.
- 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.
- 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.
- 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.