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20-letter words containing e, r

  • dickless workstation — (abuse)   Extremely pejorative hackerism for "diskless workstation".
  • dictionary catalogue — a catalogue of the authors, titles, and subjects of books in one alphabetical sequence
  • diels-alder reaction — the reaction in which a conjugated diene combines with a double or triple bond of a given compound to form a ring of six carbon atoms.
  • difference amplifier — A difference amplifier is a device that amplifies the difference between two inputs, rejecting any signals common to both.
  • difference threshold — the minimum difference between two stimuli that is just detectable by a person
  • differential housing — the casing that houses the differential of a motor vehicle
  • differential pricing — a situation in which different prices are charged for the same product or service
  • digital data service — (communications)   (DDS) The class of service offered by telecommunications companies for transmitting digital data as opposed to voice.
  • digital media player — Digital Technology. a portable electronic device or a software program that plays and stores digital audio or video files in various formats.
  • digital service unit — data service unit
  • dimethylanthranilate — a colorless or pale-yellow liquid, C 9 H 11 NO 2 , having a grape odor: used chiefly in perfumes, flavorings, and drugs.
  • dinitrogen tetroxide — a colourless gaseous substance that exists in equilibrium with nitrogen dioxide. As the temperature is reduced the proportion of the tetroxide increases. Formula: N2O4
  • diplomatic secretary — secretary (def 5).
  • diplomatic-secretary — secretary (def 5).
  • dirac delta function — delta function.
  • direct memory access — (architecture)   (DMA) A facility of some architectures which allows a peripheral to read and write memory without intervention by the CPU. DMA is a limited form of bus mastering.
  • directional drilling — a method of drilling for oil in which the well is not drilled vertically, as when a number of wells are to be drilled from a single platform to reach different areas of an oil field
  • directory assistance — a telephone company service that furnishes telephone directory information over the telephone.
  • directory user agent — (DUA) The software that accesses the X.500 Directory Service on behalf of the directory user. The directory user may be a person or another software element.
  • disability insurance — insurance providing income to a policyholder who is disabled and cannot work.
  • disciplinary hearing — a hearing at which the conduct of a member of an organization, profession etc is examined and a punishment may be handed down
  • discretionary income — money for luxuries
  • diskless workstation — (computer, networking)   A personal computer or workstation which has neither a hard disk nor floppy disk drive and which performs all file access via a local area network connection to a file server. The lowest level bootstrap code is stored in non-volatile storage. This uses a simple protocol such as BOOTP to request and download more sophisticated boot code and eventually, the operating system. The archtypal product was the 3Station developed by Bob Metcalfe at 3Com. Another example was the Sun 3/50. Diskless workstations are ideal when many users are running the same application. They are small, quiet, more reliable than products with disks, and help prevent both the theft of data and the introduction of viruses since the software and data available on them is controlled by the network administrator or system administrator. They do however rely on a server which becomes a disadvantage if it is heavily loaded or down. See also breath-of-life packet.
  • dispersion hardening — the strengthening of an alloy as a result of the presence of fine particles in the lattice
  • displacement current — the rate of change, at any point in space, of electric displacement with time.
  • disproportionateness — The state or quality of being disproportionate or out of proportion.
  • disruptive discharge — the sudden, large increase in current through an insulating medium resulting from complete failure of the medium under electrostatic stress.
  • distress merchandise — goods sold below the prevailing price in order to raise cash quickly or to meet some other financial emergency.
  • distributed database — A collection of several different databases that looks like a single database to the user. An example is the Internet Domain Name System (DNS).
  • distributed practice — learning with reasonably long intervals between separate occasions of learning
  • distribution channel — trade: retailer
  • distributive lattice — (theory)   A lattice for which the least upper bound (lub) and greatest lower bound (glb) operators distribute over one another so that a lub (b glb c) == (a lub c) glb (a lub b) and vice versa. ("lub" and "glb" are written in LateX as \sqcup and \sqcap).
  • district court judge — a judge presiding over a lower court
  • diverticular disease — any disease of the colon involving the presence of diverticula
  • do someone a service — If you do someone a service, you do something that helps or benefits them.
  • doctor of the church — a title conferred on an ecclesiastic for great learning and saintliness.
  • documentary evidence — law: written
  • dolly varden pattern — a fabric print consisting of bouquets of flowers.
  • double fertilization — the fertilization process characteristic of flowering plants, in which one sperm cell of a pollen grain fertilizes an egg cell while a second fuses with two polar nuclei to produce a triploid body that gives rise to the endosperm.
  • double-aspect theory — a monistic theory that holds that mind and body are not distinct substances but merely different aspects of a single substance
  • double-trailer truck — tandem trailer (def 1).
  • draw close/draw near — If an event or period of time is drawing closer or is drawing nearer, it is approaching.
  • draw the short straw — to be the person (as in drawing lots) to whom an unwelcome task or fate falls
  • dressed to the nines — a cardinal number, eight plus one.
  • drink with the flies — to drink alone
  • drive a hard bargain — be tough negotiator
  • drug delivery system — A drug delivery system is a system that is used as a medium or carrier for administering a pharmaceutical product to a patient.
  • drum and bugle corps — a marching band of drum players and buglers.
  • drunk and disorderly — If someone is charged with being drunk and disorderly, they are charged with being drunk and behaving in a noisy, offensive, or violent way in public.
  • drunk mouse syndrome — (Also "mouse on drugs") A malady exhibited by the mouse pointing device of some computers. The typical symptom is for the mouse cursor on the screen to move in random directions and not in sync with the motion of the actual mouse. Can usually be corrected by unplugging the mouse and plugging it back again. Another recommended fix for optical mice is to rotate your mouse mat 90 degrees. At Xerox PARC in the 1970s, most people kept a can of copier cleaner (isopropyl alcohol) at their desks. When the steel ball on the mouse had picked up enough cruft to be unreliable, the mouse was doused in cleaner, which restored it for a while. However, this operation left a fine residue that accelerated the accumulation of cruft, so the dousings became more and more frequent. Finally, the mouse was declared "alcoholic" and sent to the clinic to be dried out in a CFC ultrasonic bath.
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