17-letter words containing u, n, f, d
- 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.
- 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
- the life and soul — a person regarded as the main source of merriment and liveliness
- the sound of mull — the water that separates the island of Mull from the mainland of Scotland
- thermal diffusion — the separation of constituents, often isotopes, of a fluid under the influence of a temperature gradient.
- 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.
- unclassified road — a road that has not been given a grade because it is of a basic standard
- under the sign of — during that portion of the year when the sun is passing through and thus subject to the influence of (a specified sign of the zodiac)
- unlawful wounding — an offence committed when a person maliciously wounds another person
- vanilla-flavoured — having been flavoured with vanilla extract or essence
- vibrofluidization — Vibrofluidization is when vibration is used to make particles move in a fluidized bed.
- wallis and futuna — French overseas territory in the South Pacific, northeast of the Fiji Islands: it consists of two groups of islands (Wallis Islands and Futuna Islands): c. 106 sq mi (275 sq km); pop. 14,000
- 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.