23-letter words containing r, u, n, i
- (get in) under the wire — (to arrive or accomplish something) barely on time or at the last minute
- aberdeen proving ground — a federal reservation and U.S. Army training center in NE Maryland, S of Aberdeen and on W Chesapeake Bay, that is the site of a military testing ground.
- acoustical surveillance — the collecting or recording of information by sound-detection methods and devices, as for intelligence purposes.
- adaptive cruise control — Adaptive cruise control is an electronic control system in a vehicle that makes sure that the vehicle keeps a safe distance from vehicles in front.
- adjusting journal entry — An adjusting journal entry is a journal entry that is made to correct an error or update an account.
- alternative conjunction — a conjunction, as or, that expresses an alternative relationship between the words, phrases, or clauses it connects.
- anti-vibration mounting — An anti-vibration mounting is a flexible support for an engine that reduces the amount of noise and vibration that passes to the vehicle chassis.
- astro-inertial guidance — celestial guidance.
- asymmetrical modulation — (communications) A scheme to maximise use of a communications line by giving a larger share of the bandwidth to the modem at the end which is transmitting the most information. Only one end of the connection has full bandwidth, the other has only a fraction of the bandwidth. Normally, which end gets the full bandwidth is chosen dynamically. Asymmetrical modulation was made famous by the HST mode of the early high-speed modems from US Robotics.
- atomic energy authority — (in Britain) a government body established in 1954 to control research and development in atomic energy
- atrioventricular bundle — a bundle of specialized muscle fibers regulating the heartbeat by conducting impulses from the right atrium to the ventricles.
- autoerotic asphyxiation — asphyxia caused by intentionally strangling oneself while masturbating in order to intensify the orgasm through reduced oxygen flow to the brain.
- bank-and-turn indicator — a flight instrument that combines a bank indicator and turn indicator in a single unit.
- bereavement counselling — the provision of advice for bereaved people to help them cope with their grief, sometimes given by charities and support groups
- boundary value analysis — (programming) A test data selection technique in which values are chosen to lie along data extremes. Boundary values include maximum, minimum, just inside/outside boundaries, typical values, and error values. The hope is that, if a systems works correctly for these special values then it will work correctly for all values in between.
- branch on chip box full — (humour) (BCBF) A mythical IBM 1130 instruction whose action depended on the contents of the chip box. This was one of a long list of fake assembly language instructions that went around Indiana University in the 1970s.
- bread-and-butter pickle — an unpeeled slice of cucumber marinated in salt water and boiled with vinegar, celery seed, spices, and brown sugar.
- brinell hardness number — a measure of the hardness of a material obtained by pressing a hard steel ball into its surface; it is expressed as the ratio of the load on the ball in kilograms to the area of the depression made by the ball in square millimetres
- business administration — a program of studies at a college or university covering finance, management of personnel, etc., designed to prepare a person for a career in business
- calcium channel blocker — any drug that prevents the influx of calcium ions into cardiac and smooth muscle: used to treat high blood pressure and angina
- camillo benso di cavour — Camillo Benso di [kah-meel-law ben-saw dee] /kɑˈmil lɔ ˈbɛn sɔ di/ (Show IPA), 1810–61, Italian statesman: leader in the unification of Italy.
- cauchy integral formula — a theorem that gives an expression in terms of an integral for the value of an analytic function at any point inside a simple closed curve of finite length in a domain.
- cauchy integral theorem — the theorem that the integral of an analytic function about a closed curve of finite length in a finite, simply connected domain is zero.
- caught in the crossfire — If you are caught in the crossfire, you become involved in an unpleasant situation in which people are arguing with each other, although you do not want to be involved or say which person you agree with.
- central processing unit — the part of a computer that performs logical and arithmetical operations on the data as specified in the instructions
- characteristic equation — Mathematics. the characteristic polynomial of a given matrix, equated to zero. Also called auxiliary equation. an equation with one variable and equated to zero, which is derived from a given linear differential equation and in which the coefficient and power of the variable in each term correspond to the coefficient and order of a derivative in the original equation.
- characteristic function — a function that assigns the value 1 to the members of a given set and the value 0 to its nonmembers
- chi-square distribution — a continuous single-parameter distribution derived as a special case of the gamma distribution and used esp to measure goodness of fit and to test hypotheses and obtain confidence intervals for the variance of a normally distributed variable
- chief education officer — an official who is the chief administrative officer of a Local Education Authority
- chinese trumpet creeper — a showy, woody vine, Campsis grandiflora, of China, having aerial rootlets and large red flowers.
- chlorotrifluoroethylene — a colorless, flammable gas, C 2 H 2 ClF, that polymerizes to form oils, greases, and waxes.
- church of the subgenius — (body, humour) A mutant offshoot of Discordianism launched in 1981 as a spoof of fundamentalist Christianity by the "Reverend" Ivan Stang, a brilliant satirist with a gift for promotion. Popular among hackers as a rich source of bizarre imagery and references such as "Bob" the divine drilling-equipment salesman, the Benevolent Space Xists, and the Stark Fist of Removal. Much SubGenius theory is concerned with the acquisition of the mystical substance or quality of slack.
- circumstantial evidence — indirect evidence that tends to establish a conclusion by inference
- citizens' advice bureau — an independent charity where the public can obtain free, confidential information and advice on an extensive range of civil, consumer, and legal matters
- citrus greening disease — Plant Pathology. a bacterial disease of citrus trees, transmitted by insects of the Psyllidae family.
- civil aeronautics board — the former federal agency (1938–85) that regulated airline fares and assigned routes. Abbreviation: CAB, C.A.B.
- communication breakdown — a lack of communication; a failure to exchange information
- communication interface — an electronic circuit, usually designed to a specific standard, that enables one machine to telecommunicate with another machine
- communications software — (communications, software) Application programs, operating system components, and probably firmware, forming part of a communication system. These different software components might be classified according to the functions within the Open Systems Interconnect model which they provide. Typical applications include a web browser, Mail User Agent, chat and telnet.
- communist international — Third International.
- communist-international — an international organization (1919–43), founded in Moscow, uniting Communist groups of various countries and advocating the attainment of their ends by violent revolution. Also called Comintern, Communist International. Compare international (def 6).
- community health centre — a medical centre that serves a particular area
- community-service order — (in Britain) a court order requiring an offender over seventeen years old to do unpaid socially beneficial work under supervision instead of going to prison
- comparative linguistics — the study of the correspondences between languages that have a common origin.
- composite colour signal — a colour television signal in which luminance and two chrominance components are encoded into a single signal
- computer-aided learning — Computer-Aided Instruction
- computer-based training — Computer-Aided Instruction
- conditioned suppression — the reduction in the frequency of a learned response, e.g. pressing a bar for water, that occurs when a stimulus previously associated with pain is present
- conjunctive normal form — (logic) (CNF) A logical formula consisting of a conjunction of disjunctions of terms where no disjunction contains a conjunction. Such a formula might also be described as a product of sums. E.g. the CNF of (A and B) or C is (A or C) and (B or C). Contrast Disjunctive Normal Form.
- conservative evaluation — (programming) Under this parallel evaluation strategy, no evaluation is started unless it is known to be needed. The opposite of conservative evaluation is speculative evaluation.
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