23-letter words containing u, n, d
- (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.
- 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.
- alpes-de-haute provence — a department in SE France. 2698 sq. mi. (6990 sq. km). Capital: Digne.
- alpes-de-haute-provence — a department of SE France in Provence-Alpes-Côte-d'Azur region. Capital: Digne. Pop: 144 508 (2003 est). Area: 6988 sq km (2725 sq miles)
- andorra kernel language — (language) (AKL) The successor to KAP by S. Janson <[email protected]>. A prototype implementation is available from the author.
- appenzell ausser rhoden — a demicanton in NE Switzerland: Protestant. 94 sq. mi. (245 sq. km). Capital: Herisau.
- as far as one can judge — If you say that something is true as far as you can judge or so far as you can judge, you are assuming that it is true, although you do not know all the facts about it.
- 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.
- atrioventricular bundle — a bundle of specialized muscle fibers regulating the heartbeat by conducting impulses from the right atrium to the ventricles.
- bank-and-turn indicator — a flight instrument that combines a bank indicator and turn indicator in a single unit.
- between-subjects design — (of an experiment) concerned with measuring the value of the dependent variable for distinct and unrelated groups subjected to each of the experimental conditions
- beyond reasonable doubt — if something is proved beyond reasonable doubt, it is legally accepted as being true
- black and tan coonhound — one of an American breed of large, powerful hound dogs having a short, dense, black coat with tan markings above the eyes and on the muzzle, chest, legs, feet, and breech, and low-set, drooping ears, used for hunting raccoons, opossums, and other larger game.
- 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.
- bread-and-butter letter — a letter expressing gratitude for hospitality
- 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
- 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.
- catch someone off guard — If someone catches you off guard, they surprise you by doing something you do not expect. If something catches you off guard, it surprises you by happening when you are not expecting it.
- 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
- 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.
- classification schedule — the printed scheme of a system of classification
- communication breakdown — a lack of communication; a failure to exchange information
- 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
- complain about the food — If you complain about the food, you say that you are not satisfied with it.
- computer-aided learning — Computer-Aided Instruction
- computer-based training — Computer-Aided Instruction
- concrete data structure — (theory) (CDS) A model of programming language terms developed in the context of constructing fully abstract semantics for sequential languages. A CDS is a 4-tuple (C,V,E,|-) where C is a cell, V is a value, E is an event and |- is an "enabling relation". An event is a cell and a value. A cell C is "enabled" by a set of events S if S |- C. A state is a set of events which are consistent in that the values they give for any cell are all equal. Every cell in a state is enabled.
- 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
- consciousness-expanding — mind-expanding.
- constructive cost model — (programming) (COCOMO) A method for estimating the cost of a software package, proposed by Dr Barry Boehm. The Basic COCOMO Model estimates the effort required to develop software in three modes of development (Organic Mode, Semidetached Mode, or Embedded Mode) using only DSIs as an input. The Basic model is good for quick estimates. The Intermediate Model extends the Basic Model with an Effort Adjustment Factor (EAF) and different coefficients for the effort equation. The user supplies settings for cost drivers that determine the effort and duration of the software projects. It also allows DSI values and cost drivers to be chosen for individual components instead of for the system as a whole. The Detailed COCOMO Model uses effort multipliers for each phase of the project and provides a three-level product hierarchy and has some other capabilities such as a procedure for adjusting the phase distribution of the development schedule.
- corridor of uncertainty — an area of a wicket just outside a batsman's off stump, so located that the batsman will have difficulty in deciding whether or not to play a ball bowled into it
- criminal records bureau — (in England and Wales) a service offering employers and voluntary organizations access to police, health, and education records
- cyclic redundancy check — (algorithm) (CRC or "cyclic redundancy code") A number derived from, and stored or transmitted with, a block of data in order to detect corruption. By recalculating the CRC and comparing it to the value originally transmitted, the receiver can detect some types of transmission errors. A CRC is more complicated than a checksum. It is calculated using division either using shifts and exclusive ORs or table lookup (modulo 256 or 65536). The CRC is "redundant" in that it adds no information. A single corrupted bit in the data will result in a one bit change in the calculated CRC but multiple corrupted bits may cancel each other out. CRCs treat blocks of input bits as coefficient-sets for polynomials. E.g., binary 10100000 implies the polynomial: 1*x^7 + 0*x^6 + 1*x^5 + 0*x^4 + 0*x^3 + 0*x^2 + 0*x^1 + 0*x^0. This is the "message polynomial". A second polynomial, with constant coefficients, is called the "generator polynomial". This is divided into the message polynomial, giving a quotient and remainder. The coefficients of the remainder form the bits of the final CRC. So, an order-33 generator polynomial is necessary to generate a 32-bit CRC. The exact bit-set used for the generator polynomial will naturally affect the CRC that is computed. Most CRC implementations seem to operate 8 bits at a time by building a table of 256 entries, representing all 256 possible 8-bit byte combinations, and determining the effect that each byte will have. CRCs are then computed using an input byte to select a 16- or 32-bit value from the table. This value is then used to update the CRC.
- cylinder vacuum cleaner — a type of vacuum cleaner in which dirt, dust, etc, is sucked into a hard cylinder rather than a bag
- d'entrecasteaux islands — a group of volcanic islands in the Pacific, off the SE coast of New Guinea: part of Papua New Guinea. Pop: 49 167 (1990 est). Area: 3141 sq km (1213 sq miles)
- dark-field illumination — illumination of the field of a microscope from the side so that the specimen is viewed against a dark background
- data acquisition system — A data acquisition system is a system that acquires data, generally by digitizing analog channels and storing the data in digital form.
- data terminal equipment — (communications, hardware) (DTE) A device which acts as the source and/or destination of data and which controls the communication channel. DTE includes terminals, computers, protocol converters, and multiplexors. DTE is usually connected via an EIA-232 serial line to Data Communication Equipment (DCE), typically a modem. It is necessary to distinguish these two types of device because their connectors must be wired differently if a "straight-through" cable (pin 1 to pin 1, pin 2 to pin 2 etc.) is to be used. DTE should have a male connector and should transmit on pin three and receive on pin two. It is a curious fact that many modems are actually "DTE" according to the original standard.
- database query language — (database) A language in which users of a database can (interactively) formulate requests and generate reports. The best known is SQL.
- debugging an empty file — (programming, humour) A humourous definition of programming that considers a complete absence of any code as a bug to be fixed.
- decision support system — a system in which one or more computers and computer programs assist in decision-making by providing information
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