23-letter words containing v, e, d
- 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.
- administrative distance — (networking) A rating of the trustworthiness of a routing information source set by the router administrator. In Cisco routers, administrative distance is a number between 0 and 255 (the higher the value, the less trustworthy the source).
- administrative expenses — Administrative expenses are business expenses that are not related to the cost of goods or sales, such as salaries of office staff, insurance, and legal and accounting costs.
- advance corporation tax — a former UK tax in which a company paying a dividend had to deduct the basic rate of income tax from the grossed-up value of the dividend and pay it to the Inland Revenue
- advanced skills teacher — a teacher who has achieved high standards of classroom practice and success and who, after passing a national assessment, is paid to share his or her skills and experience with other teachers
- aion development system — (artificial intelligence, product) (ADS) A commericial expert system shell developed by Aion Corporation that supported forward chainging and backward chaining and featured an object-oriented knowledge representation scheme, graphics and integrated with other programming languages like C and Pascal.
- 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)
- application development — the development of specialized programs or sets of specialized programs and associated documentation designed to carry out a particular task
- atrioventricular bundle — a bundle of specialized muscle fibers regulating the heartbeat by conducting impulses from the right atrium to the ventricles.
- be on the receiving end — to be the recipient of a gift, or favor
- blog-driven development — cut-and-waste code
- 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.
- broadcast quality video — (communications, multimedia) Roughly, video with more than 30 frames per second at a resolution of 800 x 640 pixels. The quality of moving pictures and sound is determined by the complete chain from camera to receiver. Relevant factors are the colour temperature of the lighting, the balance of the red, green and blue vision pick-up tubes to produce the correct display colour temperature (which will be different) and the gamma pre-correction to cancel the non-linear characteristic of cathode-ray tubes in television receivers. The resolution of the camera tube and video coding system will determine the maximum number of pixels in the picture. Different colour coding systems have different defects. The NTSC system (National Television Systems Committee) can produce hue errors. The PAL system (Phase Alternation by Line) can produce saturation errors. Television modulation systems are specified by ITU CCIR Report 624. Low-resolution systems have bandwidths of 4.2 MHz with 525 to 625 lines per frame as used in the Americas and Japan. Medium resolution of 5 to 6.5 MHz with 625 lines is used in Europe, Asia, Africa and Australasia. High-Definition Television (HDTV) will require 8 MHz or more of bandwidth. A medium resolution (5.5 MHz in UK) picture can be represented by 572 lines of 402 pixels. Note the ratio of pixels to lines is not the same as the aspect ratio. A VGA display (480n lines of 640 pixels) could thus display 84% of the height of one picture frame. Most compression techniques reduce quality as they assume a restricted range of detail and motion and discard details to which the human eye is not sensitive. Broadcast quality implies something better than amateur or domestic video and therefore can't be retained on a domestic video recorder. Broadcasts use quadriplex or U-matic recorders. The lowest frame rate used for commercial entertainment is the 24Hz of the 35mm cinema camera. When broadcast on a 50Hz television system, the pictures are screened at 25Hz reducing the running times by 4%. On a 60Hz system every five movie frames are screened as six TV frames, still at the 4% increased rate. The six frames are made by mixing adjacent frames, with some degradation of the picture. A computer system to meet international standard reproduction would at least VGA resolution, an interlaced frame rate of 24Hz and 8 bits to represent the luminance (Y) component. For a component display system using red, green and blue (RGB) electron guns and phosphor dots each will require 7 bits. Transmission and recording is different as various coding schemes need less bits if other representations are used instead of RGB. Broadcasts use YUV and compression can reduce this to about 3.5 bits per pixel without perceptible degradation. High-quality video and sound can be carried on a 34 Mbaud channel after being compressed with ADPCM and variable length coding, potentially in real time.
- 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.
- 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
- civil aeronautics board — the former federal agency (1938–85) that regulated airline fares and assigned routes. Abbreviation: CAB, C.A.B.
- collision damage waiver — a form of optional collision insurance cover for a vehicle that is being rented
- 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 advertising — a form of advertising in which a product is compared favourably with similar products on the market
- conditional convergence — the property of an infinite series that converges while the series formed by replacing each term in the given series with its absolute value diverges; the property of an infinite series that converges when the order of the terms is altered. Compare absolute convergence (def 1).
- consolidated deliveries — deliveries of goods to different shops in a common location by a single carrier and in a single vehicle
- 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.
- cylinder vacuum cleaner — a type of vacuum cleaner in which dirt, dust, etc, is sucked into a hard cylinder rather than a bag
- d'arsonval galvanometer — a galvanometer consisting of a large, fixed magnet and a light coil that swings in the magnetic field.
- descriptive linguistics — the study of the description of the internal phonological, grammatical, and semantic structures of languages at given points in time without reference to their histories or to one another
- descriptive metaphysics — the philosophical study of the structure of how we think about the world
- development environment — (programming, tool) An integrated suite of tools to aid the development of software in a particular language or for a particular application. Usually, this consists of a compiler and editor and may also include one or more of a debugger, profiler, and source code manager. See also: IDE.
- disjunctive normal form — (DNF) A logical formula consisting of a disjunction of conjunctions where no conjunction contains a disjunction. E.g. the DNF of (A or B) and C is (A and C) or (B and C).
- dissociative extraction — Dissociative extraction is when a component is divided between two liquids, which involves breakdown of the component.
- distributive bargaining — a negotiation process aimed at reaching a compromise agreement over how resources may be allocated between the parties
- dollar (cost) averaging — see average (sense 11)
- drive sb round the bend — If you say that someone or something drives you round the bend, you mean that you dislike them and they annoy or upset you very much.
- ellipsoid of revolution — a geometric surface produced by rotating an ellipse about one of its two axes and having circular plane surfaces perpendicular to the axis of revolution
- endorsement advertising — the practice of saying that you approve of a company or product by appearing in advertisements for it
- fear-driven development — (jargon, humour) When project management adds more pressure (fires someone or something). A play on test-driven development.
- first come first served — You say 'first come first served' to indicate that a group of people or things will be dealt with or given something in the order in which they arrive.
- five-and-ten-cent store — a store that sells a wide variety of inexpensive merchandise, orig. with many articles priced at five or ten cents
- give someone the needle — to goad or heckle
- greatest common divisor — the largest number that is a common divisor of a given set of numbers. Abbreviation: G.C.D.
- harvard mark ii machine — (computer, history) A relay-based computer designed and built by Howard Aiken, with support from IBM, for the United States Navy's Naval Proving Ground, between 1942 - 1947. The Harvard Mark II was the second in a series of four electro-mechanical computers that were forerunners of the ENIAC.
- hate-driven development — (programming, humour) A play on test-driven development for use when a piece of code is not necessarily broken but you hate the way it is written so much that you feel compelled to rewrite it.
- have a way of doing sth — If you say that someone or something has a way of doing a particular thing, you mean that they often do it.
- have nothing to do with — not associate with
- 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.
- heaviside unit function — the function that is zero for any number less than zero and that is 1 for any number greater than or equal to zero.
- ivory-billed woodpecker — a large, nearly extinct, black and white woodpecker, Campephilus principalis, of the southern U.S. and Cuba, having an ivory-colored bill.
- juvenile-onset diabetes — diabetes (def 3).
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