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21-letter words containing a, n, d, r, e

  • credit card insurance — Credit card insurance is coverage for situations in which someone fraudulently uses your credit card.
  • credit life insurance — insurance guaranteeing payment of the unpaid portion of a loan if the debtor should die.
  • crude oil dehydration — Crude oil dehydration is the removal of water or water vapor from crude oil, by separating the oil from the water, often in a rotating centrifuge.
  • dance to another tune — to alter one's actions or opinions as a result of changed conditions
  • darby and joan settee — a settee having a back resembling two chair backs.
  • darken someone's door — to visit someone
  • data set organization — (operating system, storage)   (DSORG) An IBM term for file structure. These include PS physical sequential, DA direct access, IS indexed sequential, PO partitioned (a library). This system dates from OS/360, and breaks down beginning with VSAM and VTAM, where it is no longer applied. Sequential and indexed data sets can be accessed using either a "basic" or a "queued" "access method." For example a DSORG=PS file can use either BSAM (basic sequential access method) or QSAM (queued sequential access method). It can also be processed as a direct file using BDAM. Likewise a library can be processed using BPAM (basic partitioned access method), BSAM, QSAM, or BDAM. DSORG and access method are somewhat, but not completely, orthogonal. The "basic" access method deals with physical blocks rather than records, and usually provides more control over the specific device. Each I/O operation using the "basic" access method reads or writes a single block. A "basic" read or write starts an asynchronous I/O operation, and the programmer is responsible for waiting for completion and checking for errors. The "queued" access method deals with logical records and provides blocking and deblocking services. It is "queued" because it provides read-ahead and write-behind services. While a program is processing records in one input block, for example, QSAM may be reading one or more blocks ahead. Queued "get" or "put" operations are synchronous as far as the programmer is concerned. The operation is complete when the next logical record has been successfully processed. EXCP (Execute Channel Program) is a lower-level method of accessing data. IBM manuals usually named "Data Administration Guide", e.g. SC26-4505-1 for MVS/ESA DFP 3.1, provide more detail about data set organizations and access methods.
  • dead from the neck up — stupid or unintelligent
  • death by misadventure — a possible verdict in a coroner's court, indicating that death was due to an accident not to a crimes or somebody's negligence
  • decompression chamber — a chamber in which the pressure of air can be varied slowly for returning people from abnormal pressures to atmospheric pressure without inducing decompression sickness
  • deep scattering layer — any of the stratified zones in the ocean which reflect sound during echo sounding, usually composed of marine organisms which migrate vertically from c. 250 to 800 m (c. 820 to 2,625 ft)
  • defender of the faith — the title conferred upon Henry VIII by Pope Leo X in 1521 in recognition of the King's pamphlet attacking Luther's doctrines and retained by subsequent monarchs of England
  • degradation of energy — the principle that during any irreversible process the total energy available to do work decreases.
  • delusions of grandeur — If someone has delusions of grandeur, they think and behave as if they are much more important or powerful than they really are.
  • democratic centralism — the Leninist principle that policy should be decided centrally by officials, who are nominally democratically elected
  • dendrochronologically — By the use of, or with reference to dendrochronology.
  • deoxyribonucleic acid — DNA
  • department of defense — the department of the U.S. federal government charged with ensuring that the military capacity of the U.S. is adequate to safeguard the national security. Abbreviation: DOD.
  • department of justice — the department of the U.S. federal government charged with the responsibility for the enforcement of federal laws. Abbreviation: DOJ.
  • deprovincialization's — to make provincial in character.
  • detoxification centre — a place that specializes in the treatment of alcoholism or drug addiction
  • dew-point temperature — the temperature to which air must be cooled, at a given pressure and water-vapor content, for it to reach saturation; the temperature at which dew begins to form.
  • dictionary definition — the meaning of a word as given in a dictionary or dictionaries
  • differential analyzer — an analog computer designed for solving certain differential equations.
  • differential calculus — the branch of mathematics that deals with differentials and derivatives.
  • differential equation — an equation involving differentials or derivatives.
  • differential geometry — the branch of mathematics that deals with the application of the principles of differential and integral calculus to the study of curves and surfaces.
  • differential operator — a function, usually expressed as a polynomial, that indicates linear combinations of the derivatives of the expression on which it operates.
  • differential quotient — derivative (def 6).
  • differential topology — the branch of topology that studies the properties of differentiable manifolds that remain invariant under diffeomorphisms.
  • differential windlass — a pair of hoisting drums of different diameter turning at the same rate, such that a pulley suspended below them on a line wound on the larger drum and unwound from the smaller drum is raised with mechanical advantage.
  • differential-quotient — something that has been derived.
  • direct inward dialing — (communications)   (DID) A service offered by telephone companies which allows the last 3 or 4 digits of a phone number to be transmitted to the destination exchange. For example, a company could have 10 incoming lines, all with the number 234 000. If a caller dials 234 697, the call is sent to 234 000 (the company's exchange), and the digits 697 are transmitted. The company's exchange then routes the call to extension 697. This gives the impression of 1000 direct dial lines, whereas in fact there are only 10. Obviously, only 10 at a time can be used. This system is also used by fax servers. Instead of an exchange at the end of the 234 000 line, a computer running fax server software and fax modem cards uses the last three digits to identify the recipient of the fax. This allows 1000 people to have their own individual fax numbers, even though there is only one 'fax machine'.
  • disassortative mating — the reproductive pairing of individuals that have traits more dissimilar than would likely be the case if mating were random (contrasted with assortative mating).
  • discretionary account — an account in which the stockbroker is allowed complete control over the purchase and sale of securities on the customer's behalf.
  • disestablishmentarian — a person who favors the separation of church and state, especially the withdrawal of special rights, status, and support granted an established church by a state; an advocate of disestablishing a state church.
  • disk operating system — DOS.
  • display advertisement — an advertisement designed to attract attention by using devices such as conspicuous or elegant typefaces, graphics, etc
  • distant early warning — a US radar detection system to warn of missile attack
  • distinctiveness ratio — the ratio of the relative frequency of some event in a given sample to that in the general population or another relevant sample
  • double predestination — the doctrine that God has foreordained both those who will be saved and those who will be damned.
  • double spanish burton — a tackle having one standing block and two running blocks, giving a mechanical advantage of five, neglecting friction.
  • draft once reuse many — (jargon)   (DORUM) Reusing parts of a document to produce parts of an entirely new document. The term normally refers to text documents but the practise is equally common in programming.
  • drop in someone's lap — give someone the responsibility of
  • drop the handkerchief — a children's game in which all the players but one stand in a circle facing inward, while that one player stealthily drops a handkerchief behind a player in the circle who must pursue and attempt to catch the one who dropped the handkerchief before the latter reaches the vacated place.
  • dumfries and galloway — a region in S Scotland. 2460 sq. mi. (6371 sq. km).
  • dwarf japanese quince — a low, shrubby, Japanese flowering quince, Chaenomeles japonica, of the rose family, having salmon-to-orange flowers and yellow fruit.
  • dynamic drive overlay — (storage, software)   (DDO) Software to allow a system BIOS that does not support Logical Block Addressing to access drives larger than 528 MB. The alternatives are to update the system BIOS or install an EIDE controller card with a suitable on-board BIOS.
  • easier said than done — difficult to do
  • eastern daylight time — a time zone applicable to many eastern areas of the United States during the summer months, being a daylight-saving variant of Eastern Standard Time
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