23-letter words containing r, u, c
- foreign currency income — the income earned by a country from foreign currency
- four colour map theorem — (mathematics, application) (Or "four colour theorem") The theorem stating that if the plane is divided into connected regions which are to be coloured so that no two adjacent regions have the same colour (as when colouring countries on a map of the world), it is never necessary to use more than four colours. The proof, due to Appel and Haken, attained notoriety by using a computer to check tens of thousands of cases and is thus not humanly checkable, even in principle. Some thought that this brought the philosophical status of the proof into doubt. There are now rumours of a simpler proof, not requiring the use of a computer. See also chromatic number
- fraunhofer gesellschaft — (company) (FhG, FhG IIS, Institut für Integrierte Schaltungen) A german company, named after the physicist. IIS is Integrated Circuit Institute. FhG are known for their research on audio compression, especially MPEG-1 Layer-3 (MP3).
- friction reducing agent — A friction reducing agent is an additive used to reduce friction exerted downhole on tools and pipes.
- frictional unemployment — those people who are in the process of moving from one job to another and who therefore appear in the unemployment statistics collected at any given time
- function graph language — (language) (FGL) The machine language for the AMPS (Applicative Multi-Processing System) proposed by Robert Keller, Gary Lindstrom and Suhas Patil at the University of Utah.
- functional requirements — (specification) What a system should be able to do, the functions it should perform. This term is used at both the user requirements analysis and software requirements specifications phases in the software life-cycle. An example of a non-functional requirement is an initialisation sequence incorporated into the software that is specific to a given customer.
- fundamental interaction — any of the four basic interactions that occur in nature: the gravitational, electromagnetic, strong, and weak interactions
- gamma-aminobutyric acid — GABA.
- german southwest africa — a former name of Namibia.
- grand duchess charlotte — Grand Duchess (Charlotte Aldegonde Elise Marie Wilhelmine) 1896–1985, sovereign of Luxembourg 1919–64.
- great black-backed gull — any of several white gulls, as Larus marinus (great black-backed gull) having a black back and wings.
- have one's work cut out — to have as much work as one can manage
- have struck/hit paydirt — If you say that someone has struck paydirt or has hit paydirt, you mean that they have achieved sudden success or gained a lot of money very quickly.
- heterogeneous catalysis — Heterogeneous catalysis is catalysis in which the catalyst does not take part in the reaction that it increases.
- hire purchase agreement — an agreement between a seller and a buyer for the buyer to purchase something on hire purchase
- homonymous construction — a construction that consists of the same morphemes in the same order as those of another construction, as Flying planes can be dangerous, in which planes in one construction is the object of flying, and in another the subject of can; a terminal string of formatives having two or more structural descriptions.
- human rights campaigner — a person who campaigns for human rights
- hunchback of notre dame — French Notre Dame de Paris. a novel (1831) by Victor Hugo.
- hydrochlorofluorocarbon — Any of a class of inert compounds of carbon, hydrogen, hydrocarbons, chlorine, and fluorine, used in place of chlorofluorocarbons as being somewhat less destructive to the ozone layer.
- hypergeometric equation — a differential equation of the form, (x 2 − x) d 2 y / d 2 x + [(a+b +1) x−c ] dy/dx + abx =0, where a, b, and c are arbitrary constants.
- hypergeometric function — a function that is a solution to a hypergeometric equation.
- immunological tolerance — the absence of antibody production in response to the presence of antigens, usually as a result of previous exposure to the antigens
- in your stockinged feet — wearing stockings or socks but no shoes
- industrial psychologist — a person who studies human behaviour and cognitive processes in relation to the working environment
- initial public offering — An initial public offering is the first offering of stock when a company goes public.
- inland marine insurance — insurance chiefly covering risks to goods and means of transportation involved in the transporting of goods overland or by inland waterways.
- interfascicular cambium — cambium that develops between the vascular bundles.
- internal reconstruction — the hypothetical reconstruction of an earlier stage of a language or of some part of it, as its phonology, by deductions from irregularities in its present structure, as the reconstruction of a stage in English when certain instances of r were related to s in a systematic way by comparing the pair was:were to other pairs, as lose:forlorn.
- internet public library — (IPL) A project at the University of Michigan School of Information and Library Studies to provide an on-line, 24 hour public library, chaired by an assemblage of librarians and information industry professionals. The library aims to provide library services to a target audience estimated to number 1/4 of the entire American population by the end of the century. The Internet Public Library is scheduled to go on-line in March 1995. Among the first services will be on-line reference; youth services; user education; and professional services for librarians. Mailing list: [email protected]
- intrinsic semiconductor — an almost pure semiconductor to which no impurities have been added and in which the electron and hole densities are equal at thermal equilibrium
- invertible counterpoint — counterpoint in which the voices, while retaining their original form, may be interchanged above or below one another in any order.
- joint test action group —
- juan rodriguez cabrillo — Juan Rodríguez [rod-ree-ges] /rɒdˈri gɛs/ (Show IPA), (Joao Rodrigues Cabrilho) 1499?–1543, Spanish explorer, born in Portugal: discovered California.
- katmai new instructions — Streaming SIMD Extensions
- largemouth (black) bass — a black bass (Micropterus salmoides) found in warm, sluggish waters
- laughlin air force base — U.S. Air Force installation in SW Texas, SE of Del Rio.
- light and shade surface — (in architectural shades and shadows) a surface in a plane tangent to the parallel rays from the theoretical light source, treated as a shade surface.
- lossy audio compression — (audio, compression) Any audio compression algorithm which does not retain every bit of data but only reproduces a signal that sounds more or less like the original. Examples are MP1, MP2, MP3, AAC.
- magnetic quantum number — the quantum number that designates the component of the orbital angular momentum in a fixed direction and that can assume all integral values between and including the orbital quantum number and the negative of the orbital quantum number.
- micro assembly language — (language) (MAL) A microprogramming language with high-level syntax, used in the reference below. See also Mic-1, Mac-1.
- micropachycephalosaurus — A very small pachycephalosaurid, ornithischian dinosaur of the genus Micropachycephalosaurus.
- mild mercurous chloride — calomel.
- minimum security prison — A minimum security prison is a prison where there are fewer restrictions on prisoners than in a normal prison.
- modern sequence dancing — a form of dancing in which ballroom dance steps are used as the basis of a wide variety of different dances typically performed in a sequence
- multiple-risk insurance — insurance that covers several risks
- murder in the cathedral — a verse drama (1935) by T. S. Eliot.
- network solutions, inc. — (company) (NSI) One of the three companies that provide and coordinate InterNIC services for the NSFNet. NSI is responsible for registration. NSI has been bought by, and is now a wholly-owned subsidiary of, Science Applications International Corporation (SAIC).
- neutrosophic statistics — (statistics) Analysis of events described by neutrosophic probability.
- new product development — the process of developing new products for the market