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17-letter words containing f, e, i

  • denial of service — a deliberate interruption in access to a computer system or network, esp by using multiple computers to generate an unmanageable volume of traffic (distributed denial of service)
  • denial-of-service — pertaining to or being an incident in which a computer or computer network is disabled, disrupting access or service: a website hit by a denial-of-service attack; unintentional denial-of-service problems.
  • deprofessionalise — to remove from professional control, influence, manipulation, etc.
  • deprofessionalize — to remove from professional control, influence, manipulation, etc.
  • deucalion's flood — a flood sent by Zeus that wiped out the entire population of the earth, except for Deucalion and his wife Pyrrha
  • devil's food cake — a rich chocolate cake
  • difference engine — (computer, history)   Charles Babbage's design for the first automatic mechanical calculator. The Difference Engine was a special purpose device intended for the production of mathematical tables. Babbage started work on the Difference Engine in 1823 with funding from the British Government. Only one-seventh of the complete engine, about 2000 parts, was built in 1832 by Babbage's engineer, Joseph Clement. This was demonstrated successfully by Babbage and still works perfectly. The engine was never completed and most of the 12,000 parts manufactured were later melted for scrap. It was left to Georg and Edvard Schuetz to construct the first working devices to the same design which were successful in limited applications. The Difference Engine No. 2 was finally completed in 1991 at the Science Museum, London, UK and is on display there. The engine used gears to compute cumulative sums in a series of registers: r[i] := r[i] + r[i+1]. However, the addition had the side effect of zeroing r[i+1]. Babbage overcame this by simultaneously copying r[i+1] to a temporary register during the addition and then copying it back to r[i+1] at the end of each cycle (each turn of a handle).
  • 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
  • diffused junction — a semiconductor junction formed by diffusing acceptor or donor impurity atoms into semiconductor material to form regions of p-type or n-type conductivity
  • dimethylformamide — a colourless liquid widely used as a solvent and sometimes as a catalyst. Formula: (CH3)2NCHO
  • dimethylsulfoxide — DMSO.
  • director of music — a person in charge of musical training and performance at an institution such as a college, especially the head bandmaster of a military band
  • disidentification — The act of disidentifying, or rejecting a personal or group identity.
  • disrespectfulness — The state or quality of being disrespectful; disrespect; disregard.
  • distributed force — A distributed force is a force that acts on a large part of a surface, not just on one place.
  • do the bidding of — to be obedient to; carry out the orders of
  • 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.
  • drained of colour — colourless
  • dress-down friday — In some companies employees are allowed to wear clothes that are less smart than usual on a Friday. This day is known as a dress-down Friday.
  • drink like a fish — any of various cold-blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with scales.
  • droplet infection — infection spread by airborne droplets of secretions from the nose, throat, or lungs.
  • east pacific rise — a long north-south elevation of the sea floor in the E Pacific Ocean extending southward from SW Mexico to the Antarctic Ocean.
  • east renfrewshire — a council area of W central Scotland, comprising part of the historical county of Renfrewshire; part of Strathclyde region from 1975 to 1996: chiefly agricultural and residential. Administrative centre: Giffnock. Pop: 89 680 (2003 est). Area: 173 sq km (67 sq miles)
  • eat flaming death — (humour, abuse)   A construction popularised among hackers by the infamous CPU Wars comic; supposedly derive from a famously turgid line in a WWII-era anti-Nazi propaganda comic that ran "Eat flaming death, non-Aryan mongrels!" or something of the sort (however, it is also reported that the Firesign Theater's 1975 album "In The Next World, You're On Your Own" included the phrase "Eat flaming death, fascist media pigs"; this may have been an influence). Used in humorously overblown expressions of hostility. "Eat flaming death, EBCDIC users!"
  • edward fitzgerald — Edward, 1809–83, English poet: translator of drama and poetry, especially of Omar Khayyám.
  • effective current — the magnitude of an alternating current having the same heating effect as that of a given magnitude of direct current.
  • efficiency expert — a person who studies the methods, procedures, and job characteristics of a business or factory with the object of devising ways to increase the efficiency of equipment and personnel.
  • electrical fitter — someone whose job is to fit electrical equipment
  • electrified fence — a barrier that uses electric shocks to deter animals or people from crossing a boundary
  • electrofiltration — Electrofiltration is a separation process in which an electric field is applied across a filter to improve separation.
  • electron affinity — a measure of the ability of an atom or molecule to form a negative ion, expressed as the energy released when an electron is attached
  • electronic office — integrated computer systems designed to handle office work
  • empirical formula — a chemical formula indicating the proportion of each element present in a molecule
  • employee benefits — benefits, such as health insurance, pension payments, or childcare, given to employees in addition to their usual salary or wage
  • employment office — any of a number of government offices established to collect and supply to the unemployed information about job vacancies and to employers information about availability of prospective workers
  • energy efficiency — a measure of how efficiently an appliance, building, organization or country uses energy
  • english breakfast — An English breakfast is a breakfast consisting of cooked food such as bacon, eggs, sausages, and tomatoes. It also includes toast and tea or coffee.
  • enrolment figures — the numbers of people enrolling at an institution, on a course, etc
  • enzyme deficiency — failure of the body to produce a specific enzy
  • equalization fund — a monetary reserve established by a country to provide funds for maintaining the official exchange rates of its currency by equalizing the buying and selling of foreign exchange.
  • equation of state — any equation that expresses the relationship between the temperature, pressure, and volume of a substance
  • eudoxus of cnidus — ?406–?355 bc, Greek astronomer and mathematician; believed to have calculated the length of the solar year
  • executive officer — the second-in-command of any of certain military units
  • exfoliating cream — a granular cosmetic preparation that removes dead cells from the skin's surface
  • explicit function — a function whose values may be computed directly, as y = x2 + 1
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