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25-letter words containing s, d

  • dataphone digital service — (communications, product)   (DDS) The first private-line digital service offered by AT&T, with data rates typically at 2.4, 4.8, 9.6 and 56 kilobits per second. DDS is now part of AT&T's Accunet family of services. Most LEC (local exchange carriers) and IXC (IntereXchange Carriers) offer similar services.
  • de mortuis nil nisi bonum — (say) nothing but good of the dead
  • decision support database — A database from which data is extracted and analysed statistically (but not modified) in order to inform business or other decisions. This is in contrast to an operational database which is being continuously updated. For example, a decision support database might provide data to determine the average salary of different types of workers, whereas an operational database containing the same data would be used to calculate pay check amounts. Often, decision support data is extracted from operation databases.
  • decreasing term insurance — Decreasing term insurance is life insurance with the amount of coverage decreasing over the term of the policy and a lump sum payment if you die in advance.
  • defense trade regulations — (legal)   The U.S. law governening munitions export and defense technology (F-16s, TOW missiles and cryptology). According to the U.S. (and Canada) cryptography is a munition and people who export it can be charged as though they were exporting bombs or state secrets. People have been. See also EFF.
  • democratic unionist party — a Northern Irish political party, founded by Ian Paisley in 1971, advocating the maintenance of union with the UK
  • detective chief inspector — a police officer who investigates crime and who ranks above a detective inspector but below a detective superintendent
  • develop-mentally disabled — a disability, as mental retardation or cerebral palsy, that begins at an early age and continues indefinitely, leading to substantial handicap.
  • díaz del castillo, bernal — (bɛʀˈnɑl) ; bernälˈ) 1492?-1581?; Sp. historian & soldier with Cortés
  • dibasic calcium phosphate — Dibasic calcium phosphate is a white powder or crystalline substance used as a dietary supplement and tableting agent.
  • diesel-electric generator — A diesel-electric generator is a piece of equipment that uses diesel as a fuel to produce electricity.
  • digital rights management — (legal)   (DRM) Any technology used to limit the use of software, music, movies or other digital data. This generally relies on some interaction between the media and the system that plays it. For example, video DVDs usually include a region code. If this does not match the player's region code, the player will refuse to play the disc.
  • digital signal processing — (DSP) Computer manipulation of analog signals (commonly sound or image) which have been converted to digital form (sampled).
  • diminished responsibility — law: lack of capacity
  • directory access protocol — X.500 protocol used for communication between a Directory User Agent and a Directory System Agent.
  • disappear without a trace — If you say that someone or something disappears without a trace, you mean that they stop existing or stop being successful very suddenly and completely.
  • discrete cosine transform — (mathematics)   (DCT) A technique for expressing a waveform as a weighted sum of cosines. The DCT is central to many kinds of signal processing, especially video compression. Given data A(i), where i is an integer in the range 0 to N-1, the forward DCT (which would be used e.g. by an encoder) is: B(k) = sum A(i) cos((pi k/N) (2 i + 1)/2) i=0 to N-1 B(k) is defined for all values of the frequency-space variable k, but we only care about integer k in the range 0 to N-1. The inverse DCT (which would be used e.g. by a decoder) is: AA(i)= sum B(k) (2-delta(k-0)) cos((pi k/N)(2 i + 1)/2) k=0 to N-1 where delta(k) is the Kronecker delta. The main difference between this and a discrete Fourier transform (DFT) is that the DFT traditionally assumes that the data A(i) is periodically continued with a period of N, whereas the DCT assumes that the data is continued with its mirror image, then periodically continued with a period of 2N. Mathematically, this transform pair is exact, i.e. AA(i) == A(i), resulting in lossless coding; only when some of the coefficients are approximated does compression occur. There exist fast DCT algorithms in analogy to the Fast Fourier Transform.
  • do sb/sth a world of good — If you say that something has done someone a world of good, you mean that it has made them feel better or improved their life.
  • do-it-yourself enthusiast — an enthusiast of the hobby or process of constructing and repairing things by yourself
  • document image processing — (DIP) Storage, management and retrieval of images.
  • dopamine receptor agonist — A dopamine receptor agonist is any compound that activates dopamine receptors when dopamine is not present.
  • drive someone up the wall — If you say that something or someone is driving you up the wall, you are emphasizing that they annoy and irritate you.
  • eastern aden protectorate — a former British protectorate, now the E part of the People's Democratic Republic of Yemen: composed of the Arab sheikdoms of Hadhramaut and the island of Socotra.
  • edward trowbridge collins — Edward Trowbridge ("Eddie") 1887–1951, U.S. baseball player.
  • electronic funds transfer — (application, communications)   (EFT, EFTS, - system) Transfer of money initiated through electronic terminal, automated teller machine, computer, telephone, or magnetic tape. In the late 1990s, this increasingly includes transfer initiated via the web. The term also applies to credit card and automated bill payments.
  • embedded lisp interpreter — (language)   (ELI) A small Common Lisp-like interpreter embedded in the Andrew mail system, written by Bob Glickstein at CMU.
  • enhanced graphics adapter — (graphics, hardware)   (EGA) An IBM PC display standard with a resolution of 640 x 350 pixels of 16 colours.
  • entity-relationship model — (database, specification)   An approach to data modelling proposed by P. Chen in 1976. The model says that you divide your database in two logical parts, entities (e.g. "customer", "product") and relations ("buys", "pays for"). One of the first activities in specifying an application is defining the entities involved and their relationships, e.g. using an entity-relationship diagram to represent a model.
  • examination for discovery — a pretrial meeting to disclose evidence that will be presented later
  • expanding universe theory — the theory, developed from the observed red shifts of celestial bodies, that the space between galaxies is expanding, so that they appear to recede from us at velocities that increase with their distance
  • exploratory data analysis — (EDA)
  • extended backus-naur form — (language)   Any variation on the basic Backus-Naur Form (BNF) meta-syntax notation with (some of) the following additional constructs: square brackets "[..]" surrounding optional items, suffix "*" for Kleene closure (a sequence of zero or more of an item), suffix "+" for one or more of an item, curly brackets enclosing a list of alternatives, and super/subscripts indicating between n and m occurrences. All these constructs can be expressed in plain BNF using extra productions and have been added for readability and succinctness.
  • federal bureau of prisons — the agency of the US Department of Justice responsible for the administration of prisons
  • field-emission microscope — a device in which electrons liberated by field emission are accelerated toward a fluorescent screen to form a magnified image of the emitting surface.
  • first and second manassas — two battles fought at Manassas Junction near a stream named Bull Run, during the American Civil War (July, 1861 and August, 1862), in both of which the Federal army was routed by the Confederates
  • flexible spending account — an account to which an employee contributes a portion of earnings to pay for certain expenses such as medical and dependent care: contributions are exempt from payroll taxes. Abbreviation: FSA.
  • frame relay access device — (communications)   (FRAD) Hardware and software that turns packets from TCP, SNA, IPX, etc into frames that can be sent over a Frame Relay wide area network. FRADs are a hot topic in data comms because companies like Netlink, Motorola, Stratacom are making lots of money out of them.
  • franked investment income — (formerly) dividends from one UK company received by another on which the paying company had paid corporation tax so that the receiving company had no corporation tax to pay: discontinued from 1999
  • frequently asked question — (convention)   (FAQ, or rarely FAQL, FAQ list) A document provided for many Usenet newsgroups (and, more recently, web services) which attempts to answer questions which new readers often ask. These are maintained by volunteers and posted regularly to the newsgroup. You should always consult the FAQ list for a group before posting to it in case your question or point is common knowledge. The collection of all FAQ lists is one of the most precious and remarkable resources on the Internet. It contains a huge wealth of up-to-date expert knowledge on many subjects of common interest. Accuracy of the information is greatly assisted by its frequent exposure to criticism by an interested, and occasionally well-informed, audience (the readers of the relevant newsgroup). The main FTP archive for FAQs is on a computer called RTFM at MIT, where they can be accessed either by group or by hierarchy. There is another archive at Imperial College, London, UK and a web archive in Ohio, USA. The FAQs are also posted to Usenet newsgroups: news:comp.answers, news:news.answers and news:alt.answers.
  • fully booked/booked solid — If a hotel, restaurant, theatre, or transport service is fully booked, or booked solid, it is booked up.
  • gas desulfurization plant — A gas desulfurization plant is a place with equipment that removes sulfur dioxide from flue gas before it is released into the atmosphere.
  • gensym standard interface — (programming)   (GSI) A set of C libraries and programming tools used to interface G2 to external systems. Commercially available bridges are available to SCADA systems and PLCs.
  • get up on one's hind legs — to become assertive, belligerent, etc.
  • give someone the dingbats — to make someone nervous
  • graft-versus-host disease — a reaction in which the cells of transplanted tissue immunologically attack the cells of the host organism, occurring especially in bone-marrow transplants.
  • graham's law of diffusion — the principle that at a given temperature and pressure the rate of diffusion of a gas is inversely proportional to the square root of its density.
  • graphic design department — a group of people in a company who work in graphic design
  • graphic display interface — (hardware)   (GDI) graphics adaptor.
  • group-sweeping scheduling — (storage, algorithm)   (GSS) A disk scheduling strategy in which requests are served in cycles, in a round-robin manner. To reduce disk arm movements ("seeking"), the set of streams is divided into groups that are served in fixed order. Streams within a group are served according to "SCAN". If all clients are assigned to one group, GSS reduces to SCAN, and if all clients are assigned to separate groups, GSS effectively becomes round-robin scheduling. The service order within one group is not fixed, and a stream may in fact be first in one cycle while last in the next. This variation has to be masked by extra buffering but whereas SCAN requires buffer space for all streams, GSS can reuse the buffer for each group and effect a trade-off between seek optimisation and buffer requirements.
  • hand sth to sb on a plate — If you say that someone has things handed to them on a plate, you disapprove of them because they get good things easily.
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