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17-letter words containing a, r, t, l

  • delay instruction — delayed control-transfer
  • dematerialisation — The act or process of dematerializing.
  • dematerialization — The act or process of dematerializing.
  • denatured alcohol — ethanol rendered unfit for human consumption by the addition of a noxious substance, as in methylated spirits
  • dendroclimatology — The science that uses dendrochronology to reconstruct historical climate conditions.
  • departmentalizing — Present participle of departmentalize.
  • depersonalisation — Alternative spelling of depersonalization.
  • depersonalization — the act or an instance of depersonalizing
  • dephosphorylation — the removal of a phosphate group from an organic compound, as in the changing of ATP to ADP.
  • dessert chocolate — cooking chocolate
  • deterministically — the doctrine that all facts and events exemplify natural laws.
  • development grant — a grant awarded, esp by a government, to a person or company in order to fund the development of a new product
  • dialect geography — linguistic geography
  • diaphragmatically — By use of the diaphragm; in a diaphragmatic way.
  • diethyltryptamine — a synthetic derivative of tryptamine with hallucinogenic and psychotogenic effects. Abbreviation: DET.
  • differentiability — The ability to be differentiated.
  • differential gear — differential (def 7).
  • differential line — (hardware)   A kind of electrical connection using two wires, one of which carries the normal signal (V) and the other carries an inverted version the signal (-V). A differential amplifier at the receiver subtracts the inverted signal from the normal signal to yield a signal proportional to V. This subtraction is intended to cancel out any noise induced in the wires, on the assmption that the same level of noise will have been induced in both wires. Twisted pair wiring is often used to try to ensure that this is the case. The two wires might be connected at the receiver to separate analogue to digital converters and the subtraction performed digitally. The RS-422 serial line standard specifies differential drivers and receivers, whereas the earlier RS-232 standard does not. Opposite: single ended.
  • differential rate — a special lower rate, as one charged by one of two or more competing businesses.
  • differential tone — a musical sound sometimes heard when two loud notes are sounded together, lower in pitch than either
  • digital dashboard — (software)   A personalised desktop portal that focuses on business intelligence and knowledge management.
  • digital footprint — one's unique set of digital activities, actions, and communications that leave a data trace on the Internet or on a computer or other digital device and can identify the particular user or device: Our online browsing habits are part of our passive digital footprint, created without our consent or knowledge, but our active digital footprint, especially on social media, can more easily be managed. Compare footprint (def 4).
  • digital immigrant — a person who has become familiar with computers, the Internet, and other digital technology as a young adult or later in life. Compare digital native.
  • digital recording — a method of sound recording in which an input audio waveform is sampled at regular intervals, usually between 40,000 and 50,000 times per second, and each sample is assigned a numerical value, usually expressed in binary notation.
  • digital signature — an encrypted digital code appended to an electronic document to verify that it was created by a known source and has not been altered.
  • dimethylformamide — a colourless liquid widely used as a solvent and sometimes as a catalyst. Formula: (CH3)2NCHO
  • dimethylhydrazine — a flammable, highly toxic, and colorless liquid, C 2 H 8 N 2 , used as a component in jet and rocket fuels.
  • disaster planning — disaster recovery
  • discreditableness — Quality of being discreditable.
  • discrete variable — a variable that may assume only a countable, and usually finite, number of values.
  • display standards — display standard
  • disproportionally — not in proportion; disproportionate.
  • disrespectability — Lack of respectability.
  • dissipation trail — a clear rift left behind an aircraft flying through a thin cloud layer.
  • dissolve in tears — weep
  • distance learning — education in which students receive instruction over the Internet, from a video, etc., instead of going to school.
  • distillers' grain — a by-product of the distillation process for making whisky, used as an animal foodstuff
  • dollars-and-cents — considered strictly in terms of money: from a dollars-and-cents viewpoint.
  • doorstep salesman — a door-to-door salesman
  • double quatrefoil — a charge having the form of a foil with eight leaves, used especially as the cadency mark of a ninth son.
  • double refraction — the separation of a ray of light into two unequally refracted, plane-polarized rays of orthogonal polarizations, occurring in crystals in which the velocity of light rays is not the same in all directions.
  • double track line — a railway line with double track
  • douglas engelbart — (person)   Douglas C. Engelbart, the inventor of the mouse. On 1968-12-09, Douglas C. Engelbart and the group of 17 researchers working with him in the Augmentation Research Center at Stanford Research Institute in Menlo Park, California, USA, presented a 90-minute live public demonstration of the on live system, NLS, they had been working on since 1962. The presentation was a session in the of the Fall Joint Computer Conference held at the Convention Center in San Francisco, and it was attended by about 1000 computer professionals. This was the public debut of the computer mouse, hypertext, object addressing, dynamic file linking and shared-screen collaboration involving two persons at different sites communicating over a network with audio and video interface. The original 90-minute video: Hyperlinks, Mouse, Web-board.
  • douglas macarthur — Douglas, 1880–1964, U.S. general: supreme commander of allied forces in SW Pacific during World War II and of UN forces in Korea 1950–51.
  • downward mobility — movement from one social level to a higher one (upward mobility) or a lower one (downward mobility) as by changing jobs or marrying.
  • drilling platform — a structure, either fixed to the sea bed or mobile, which supports the machinery and equipment (the drilling rig), together with the stores, required for digging an offshore oil well
  • drive to the wall — to force into an awkward situation
  • drive up the wall — to cause to become crazy or furious
  • duality principle — the principle that a mathematical duality exists under certain conditions.
  • dull as dishwater — water in which dishes are, or have been, washed.
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