17-letter words containing e, l, d, r, f
- 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
- 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
- reformed spelling — a revised orthography intended to simplify the spelling of English words, especially to eliminate unpronounced letters, as by substituting thru for through, tho for though, slo for slow, etc.
- road-fund licence — a licence showing that the tax payable in respect of a motor vehicle has been paid
- roof of the world — Tibet, Plateau of.
- 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.
- 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-depreciating — self-deprecating.
- self-introduction — the act of introducing or the state of being introduced.
- self-reproduction — the act or process of reproducing.
- sidesaddle flower — a pitcher plant, Sarracenia purpurea.
- smoke-filled room — a place, as a hotel room, for conducting secret negotiations, effecting compromises, devising strategy, etc.
- south farmingdale — a town on central Long Island, in SE New York.
- springfield rifle — a single-shot, breechloading .45-caliber rifle used by the U.S. Army from 1867 to 1893.
- 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.
- 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
- striped killifish — a killifish, Fundulus majalis, of the Atlantic coast of the U.S., the female of which is marked with black stripes.
- 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.
- sword of damocles — Damocles (def 2).
- thermal diffusion — the separation of constituents, often isotopes, of a fluid under the influence of a temperature gradient.
- tree of knowledge — the tree whose fruit Adam and Eve tasted in disobedience of God: Gen. 2, 3
- unclassified road — a road that has not been given a grade because it is of a basic standard
- vanilla-flavoured — having been flavoured with vanilla extract or essence
- wage differential — the difference in wages between workers with different skills in the same industry or between those with comparable skills in different industries or localities
- youthful offender — a young delinquent, especially a first offender, usually from 14 to 21 years old, whom the court tries to correct and guide rather than to punish as a criminal.