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23-letter words containing t, o, r, u, l

  • finite impulse response — (electronics, DSP)   (FIR) A type of digital signal filter, in which every sample of output is the weighted sum of past and current samples of input, using only some finite number of past samples.
  • fish in troubled waters — any of various cold-blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with scales.
  • 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).
  • 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
  • gastroesophageal reflux — a chronic condition in which acid from the stomach flows back into the lower esophagus, causing pain or tissue damage.
  • geiger-muller threshold — the minimum voltage applied to an ionization chamber, as in a Geiger counter, at which the charge collected per count is independent of the nature of the ionizing event producing the count.
  • get/build your hopes up — If you tell someone not to get their hopes up, or not to build their hopes up, you are warning them that they should not become too confident of progress or success.
  • give (or get) a tumble — to give (or get) some favorable or affectionate notice, attention, etc.
  • grand duchess charlotte — Grand Duchess (Charlotte Aldegonde Elise Marie Wilhelmine) 1896–1985, sovereign of Luxembourg 1919–64.
  • guest relations manager — A guest relations manager at a hotel is responsible for the relationships that the hotel has with its guests and the way in which it treats them.
  • hang out your/a shingle — If you hang out your shingle or hang out a shingle, you start your own business.
  • heterogeneous catalysis — Heterogeneous catalysis is catalysis in which the catalyst does not take part in the reaction that it increases.
  • horsehair-blight fungus — a fungal parasite, Marasmius equicrinis, that causes a disease of certain tropical plants, especially tea.
  • immunological tolerance — the absence of antibody production in response to the presence of antigens, usually as a result of previous exposure to the antigens
  • 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.
  • internal rate of return — an interest rate giving a net present value of zero when applied to the expected cash flow of a project. Its value, compared to the cost of the capital involved, is used to determine the project's viability
  • 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.
  • invertible counterpoint — counterpoint in which the voices, while retaining their original form, may be interchanged above or below one another in any order.
  • largemouth (black) bass — a black bass (Micropterus salmoides) found in warm, sluggish waters
  • leave no stone unturned — the hard substance, formed of mineral matter, of which rocks consist.
  • lie through one's teeth — a false statement made with deliberate intent to deceive; an intentional untruth; a falsehood. Synonyms: prevarication, falsification. Antonyms: truth.
  • lieutenant junior grade — a commissioned officer ranking above an ensign and below a lieutenant.
  • lingual protrusion lisp — a speech defect consisting in pronouncing s and z like or nearly like the th- sounds of thin and this, respectively.
  • liquefied petroleum gas — a mixture of various petroleum gases, esp propane and butane, stored as a liquid under pressure and used as an engine fuel
  • meaningful relationship — a romantic relationship based upon mutual respect and supportiveness and marked by a sense of commitment and fulfillment.
  • mop (up) the floor with — to defeat decisively
  • national superannuation — a means-related pension paid to elderly people
  • 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).
  • new product development — the process of developing new products for the market
  • new year's honours list — an Honour's List published at the beginning of a new year
  • nondisclosure agreement — a legal contract in which one or more parties agree to keep information, as a trade secret, confidential and protected for a specific amount of time. Abbreviation: NDA.
  • nonverbal communication — gesture and facial expression
  • north ossetian republic — a constituent republic of S Russia, on the N slopes of the central Caucasus Mountains. Capital: Vladikavkaz. Pop: 709 900 (2002). Area: about 8000 sq km (3088 sq miles)
  • not a hair out of place — If you say that someone has not a hair out of place, you are emphasizing that they are extremely smart and neatly dressed.
  • on-line computer system — (OLC) A predecessor of the Culler-Fried System from UCSB ca. 1966.
  • out of a clear blue sky — the region of the clouds or the upper air; the upper atmosphere of the earth: airplanes in the sky; cloudy skies.
  • out-of-court settlement — a resolution of a legal dispute which takes place outside of a court proceeding or before the court comes to a final decision
  • parasexual reproduction — reproduction by recombination of genes from genetically dissimilar nuclei within binucleate or multinucleate cells, as in filamentous fungi.
  • pharmaceuticals company — a company specialising in developing and marketing pharmaceuticals
  • photoelectric magnitude — the magnitude of a star determined using a photometer plus a filter to select light or other radiation of the desired wavelength
  • polytetrafluoroethylene — any polymer, plastic, or resin having the formula (C 2 F 4) n , prepared from tetrafluoroethylene, noted for its slippery, nonsticking properties, and used in the manufacture of gaskets, electrical insulation, tubing, candy molds, container linings, frying-pan coatings, etc.
  • precautionary principle — the precept that an action should not be taken if the consequences are uncertain and potentially dangerous
  • price escalation clause — a clause in a contract allowing the seller to raise prices if the cost of inputs increases
  • probabilistic automaton — nondeterministic automaton
  • professional misconduct — a violation of the rules or boundaries set by the governing body of a profession
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