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13-letter words containing n, e, o, r

  • driving force — impetus
  • drongo shrike — any insectivorous songbird of the family Dicruridae, of the Old World tropics, having a glossy black plumage, a forked tail, and a stout bill
  • dronkverdriet — drunk and maudlin
  • drop shipment — a shipment of goods made directly from the manufacturer to the retailer or consumer but billed through the wholesaler or distributor.
  • drummondville — a city in S Quebec, in E Canada.
  • dryopithecine — (sometimes initial capital letter) an extinct ape of the genus Dryopithecus, known from Old World Miocene fossils.
  • dun laoghaire — a seaport in E Republic of Ireland, near Dublin.
  • dysmenorrheal — painful menstruation.
  • dysmenorrheic — Of, pertaining to, or experiencing dysmenorrhea.
  • dysmenorrhoea — painful menstruation.
  • dysregulation — A failure to regulate properly.
  • e-proposition — a universal negative proposition
  • ear infection — an infection that affects the ear
  • early closing — shop closure at earlier hour
  • early-morning — taking place or being presented in the early part of the morning
  • earned income — income from wages, salaries, fees, or the like, accruing from labor or services performed by the earner.
  • earnest money — money given by a buyer to a seller to bind a contract.
  • earning power — business: ability to profit
  • earth station — a terminal equipped to receive, or receive and transmit, signals from or to communications satellites.
  • east by north — a point on the compass 11°15′ north of east. Abbreviation: EbN.
  • east paterson — former name of Elmwood Park (def 2).
  • easter bonnet — an especially pretty or fancy hat designed for a woman to wear to church on Easter Sunday or, especially, in an Easter parade
  • easter monday — the day after Easter, observed as a holiday in some places.
  • eastern shore — the eastern shore of Chesapeake Bay, including parts of Maryland, Delaware, and Virginia.
  • eavesdropping — to listen secretly to a private conversation.
  • economic rent — the return on a productive resource, as land or labor, that is greater than the amount necessary to keep the resource producing or on a product in excess of what would have been the return except for some unique factor.
  • economy drive — a campaign by the government or a firm to reduce expenditure and make savings
  • edmund andros — Sir Edmund, 1637–1714, British governor in the American colonies, 1686–89, 1692–98.
  • edward gibbon — Edward, 1737–94, English historian.
  • edward lorenz — (person)   A mathematical meteorologist who discovered the Lorenz attractor in the 1960s.
  • efflorescence — the state or a period of flowering.
  • effortfulness — (psychology) subjective experience of exertion or effort involved in performing an activity.
  • egocentricity — The quality of being egocentric.
  • egregiousness — The quality of being egregious.
  • elasmobranchs — Plural form of elasmobranch.
  • eleanor cross — any of the crosses erected at each place where the body of Eleanor of Castile (1246–90, Edward I's Spanish wife) rested between Nottingham (where she died) and London (where she is buried)
  • electioneered — Simple past tense and past participle of electioneer.
  • electioneerer — One who electioneers.
  • electrization — the action of electrifying
  • electrocement — cement that is produced through the addition of lime to molten slag in an electric furnace
  • electrocuting — Present participle of electrocute.
  • electrocution — The accidental death or suicide by electric shock.
  • electrolyzing — Present participle of electrolyze.
  • electromagnet — A soft metal core made into a magnet by the passage of electric current through a coil surrounding it.
  • electron beam — a beam or stream of electrons emitted by a single source that move in the same direction and at the same speed
  • electron lens — a system, such as an arrangement of electrodes or magnets, that produces a field for focusing a beam of electrons
  • electron tube — (electronics)   (Or tube, vacuum tube, UK: valve, electron valve, thermionic valve, firebottle, glassfet) An electronic component consisting of a space exhausted of gas to such an extent that electrons may move about freely, and two or more electrodes with external connections. Nearly all tubes are of the thermionic type where one electrode, called the cathode, is heated, and electrons are emitted from its surface with a small energy (typically a Volt or less). A second electrode, called the anode (plate) will attract the electrons when it is positive with respect to the cathode, allowing current in one direction but not the other. In types which are used for amplification of signals, additional electrodes, called grids, beam-forming electrodes, focussing electrodes and so on according to their purpose, are introduced between cathode and plate and modify the flow of electrons by electrostatic attraction or (usually) repulsion. A voltage change on a grid can control a substantially greater change in that between cathode and anode. Unlike semiconductors, except perhaps for FETs, the movement of electrons is simply a function of electrostatic field within the active region of the tube, and as a consequence of the very low mass of the electron, the currents can be changed quickly. Moreover, there is no limit to the current density in the space, and the electrodes which do dissapate power are usually metal and can be cooled with forced air, water, or other refrigerants. Today these features cause tubes to be the active device of choice when the signals to be amplified are a power levels of more than about 500 watts. The first electronic digital computers used hundreds of vacuum tubes as their active components which, given the reliability of these devices, meant the computers needed frequent repairs to keep them operating. The chief causes of unreliability are the heater used to heat the cathode and the connector into which the tube was plugged. Vacuum tube manufacturers in the US are nearly a thing of the past, with the exception of the special purpose types used in broadcast and image sensing and displays. Eimac, GE, RCA, and the like would probably refer to specific types such as "Beam Power Tetrode" and the like, and rarely use the generic terms. The cathode ray tube is a special purpose type based on these principles which is used for the visual display in television and computers. X-ray tubes are diodes (two element tubes) used at high voltage; a tungsten anode emits the energetic photons when the energetic electrons hit it. Magnetrons use magnetic fields to constrain the electrons; they provide very simple, high power, ultra-high frequency signals for radar, microwave ovens, and the like. Klystrons amplify signals at high power and microwave frequencies.
  • electron volt — a unit of energy equal to that attained by an electron falling unimpeded through a potential difference of one volt; 1.602 × 10-19 joule
  • electrophones — Plural form of electrophone.
  • electrophonic — Relating to electronic equipment to produce sound (this adjectival sense is not comparable).
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