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19-letter words containing a, l, e, n, c

  • digital electronics — (electronics)   The implementation of two-valued logic using electronic logic gates such as and gates, or gates and flip-flops. In such circuits the logical values true and false are represented by two different voltages, e.g. 0V for false and +5V for true. Similarly, numbers are normally represented in binary using two different voltages to represented zero and one. Digital electronics contrasts with analogue electronics which represents continuously varying quantities like sound pressure using continuously varying voltages. Digital electronics is the foundation of modern computers and digital communications. Massively complex digital logic circuits with millions of gates can now be built onto a single integrated circuit such as a microprocessor and these circuits can perform millions of operations per second.
  • direct grant school — (in Britain, formerly) a school financed by endowment, fees, and a state grant conditional upon admittance of a percentage of nonpaying pupils nominated by the local education authority
  • directional coupler — (communications)   (tap) A passive device used in cable systems to divide and combine radio frequency signals. A directional coupler has at least three ports: line in, line out, and the tap. The signal passes between line in and line out ports with loss referred to as the insertion loss. A small portion of the signal power applied to the line in port passes to the tap port. A signal applied to the tap port is passed to the line in port less the tap attenuation value. The tap signals are isolated from the line out port to prevent reflections. A signal applied to the line out port passes to the line in port and is isolated from the tap port. Some devices provide more than one tap output line (multi-taps).
  • displacement engine — any engine employing the rectilinear motion of one or more pistons in cylinders.
  • dobsonian telescope — a relatively inexpensive Newtonian telescope, suitable for visual but not photographic use, in which the tube assembly slips freely in the lower base.
  • draw the color line — to impose or accept the color line
  • duplicating machine — a duplicator, especially one for making identical copies of documents, letters, etc.
  • eastern coral snake — any of numerous venomous elapid snakes, found chiefly in the New World tropics, as Micrurus fulvius (eastern coral snake) of the southeastern U.S., often brilliantly marked with bands of red, yellow, and black.
  • eat someone's lunch — to take into the mouth and swallow for nourishment; chew and swallow (food).
  • echoencephalography — a device that employs reflected ultrasonic waves to examine the position of brain structures.
  • ecumenical movement — See under ecumenical (def 4).
  • educational adviser — a person who provides advice and training to teachers about teaching methods and educational policies
  • effervescent tablet — Effervescent tablets break down quickly when they are dropped into water or another liquid.
  • eilean donan castle — a castle near the Kyle of Lochalsh in Highland, Scotland: built in the 13th century; famous for its picturesque setting
  • elastic deformation — In elastic deformation a material changes shape when a stress is applied to it but goes back to its original state when the stress is removed.
  • electrical engineer — An electrical engineer is a person who uses scientific knowledge to design, construct, and maintain electrical devices.
  • electro-shock baton — a baton used as a weapon to pass an electric current through part of the body
  • electrode potential — the potential difference developed when an electrode of an element is placed in a solution containing ions of that element
  • electrodynamometers — Plural form of electrodynamometer.
  • electrohydrodynamic — (physics) Of or pertaining to electrohydrodynamics.
  • electromagnetically — By means of electromagnetism.
  • electromechanically — In an electromechanical way.
  • electron micrograph — a photograph or image of a specimen taken using an electron microscope
  • electronegativities — Plural form of electronegativity.
  • electronic graphics — (on television) the production of graphic designs and text by electronic means
  • electronic keyboard — a typewriter keyboard used to operate an electronic device such as a computer, word processor, etc
  • electronic magazine — (messaging, publication, web)   (e-zine) A regular publication on some particular topic distributed in digital form, chiefly now via the web but also by electronic mail or floppy disk. E-zines are often distributed for free by enthusiasts.
  • electrostatic units — the system of CGS electric and magnetic units that assigns the value of one to the dielectric constant of a vacuum
  • elementary particle — any of several entities, such as electrons, neutrons, or protons, that are less complex than atoms and are regarded as the constituents of all matter
  • elevator controller — An archetypal dumb embedded-systems application, like toaster (which superseded it). During one period (1983--84) in the deliberations of ANSI X3J11 (the C standardisation committee) this was the canonical example of a really stupid, memory-limited computation environment. "You can't require "printf(3)" to be part of the default run-time library - what if you're targeting an elevator controller?" Elevator controllers became important rhetorical weapons on both sides of several holy wars.
  • emotional blackmail — a way of persuading someone to do something they do not want to do by making them feel guilty about it
  • enabling technology — technology that enables the user to perform a task or to improve his or her overall performance: e.g. the internet
  • entry qualification — the qualifications and conditions required to join an organization, club, etc
  • euclidean algorithm — Euclid's Algorithm
  • evaporative cooling — a method of reducing temperature that uses evaporation
  • exhibitionistically — In an exhibitionistic manner.
  • expressionistically — In an expressionistic manner.
  • false consciousness — a Marxist theory that people are unable to see things, especially exploitation, oppression, and social relations, as they really are; the hypothesized inability of the human mind to develop a sophisticated awareness of how it is developed and shaped by circumstances.
  • family practitioner — medical specialization in general practice, requiring training beyond that of general practice and leading to board certification.
  • fellow countrywoman — a fellow countrywoman is a female citizen of the same state as the person speaking, writing, or being referred to
  • female circumcision — clitoridectomy.
  • financial statement — a document that records the financial activities and state of an organization or person
  • first-sale doctrine — a legal principle allowing the purchaser of a lawfully made copy of a copyright-protected work to sell or give away that copy without permission but not to reproduce it.
  • flag of convenience — the foreign flag under which merchant ships register in order to save on taxes or wages, or to avoid government regulations.
  • flannelmouth sucker — a sucker, Catostomus latipinnis, of the Colorado River and its tributaries.
  • focal plane shutter — an opaque shield in a camera, lying in the focal plane of the lens, that, when tripped, admits light to expose the film or plate for a predetermined period, usually a fraction of a second
  • focal-plane shutter — a camera shutter situated directly in front of the film.
  • fractal compression — (algorithm)   A technique for encoding images using fractals.
  • fractional currency — coins or paper money of a smaller denomination than the basic monetary unit.
  • fraternal insurance — insurance underwritten by a fraternal society, under either a legal reserve plan or an assessment plan.
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