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13-letter words containing b, o, l, u

  • direct labour — work that is an essential part of a production process or the provision of a service
  • dishonourable — showing lack of honor or integrity; ignoble; base; disgraceful; shameful: Cheating is dishonorable.
  • dishonourably — (British) alternative spelling of dishonorably.
  • dissolubility — The capability to be dissolved or disintegrated.
  • dole cupboard — a livery cupboard formerly used in churches for holding bread to be distributed to the poor.
  • double batten — two wooden battens screwed together for holding the edge of a drop between them.
  • double boiler — a utensil consisting of two pots, one of which fits partway into the other: water is boiled in the lower pot to cook or warm food or melt a substance in the upper.
  • double bounce — (of the ball in tennis, table tennis, etc) two bounces on the same side of the net before a return
  • double bridle — a bridle with four reins coming from a bit with two rings on each side
  • double dagger — a mark (‡) used for references, as footnotes.
  • double garage — a garage that can hold two vehicles
  • double magnum — Jeroboam (def 2).
  • double nickel — the national speed limit of 55 miles per hour as established in 1974 on U.S. highways.
  • double paddle — a paddle with a blade at each end, as that of the kayak.
  • double sculls — a race for sculls rowed by two rowers, each using a pair of oars.
  • double spread — any pair of facing pages in a completed book, magazine, etc.
  • double tackle — a pulley system using blocks having two grooved wheels.
  • double vision — diplopia.
  • double whammy — twofold misfortune
  • double wicket — cricket in which two wickets are used, being the usual form of the game.
  • double window — a window with two panes of glass
  • double-acting — (of a reciprocating engine, pump, etc.) having pistons accomplishing work in both directions, fluid being admitted alternately to opposite ends of the cylinders. Compare single-acting.
  • double-action — (of a firearm) requiring only one pull of the trigger to cock and fire it.
  • double-booked — to overbook by accepting more than one reservation for the same hotel room, airplane seat, etc.
  • double-bottom — tandem trailer (def 1).
  • double-clutch — (of a bird) to produce a second clutch of eggs after the first has been removed, usually for hatching in an incubator.
  • double-decker — something with two decks, tiers, or the like, as two beds one above the other, a ship with two decks above the water line, or a bus with two decks.
  • double-dipper — Informal. to earn a salary from one position while collecting a pension from the same employer or organization, especially to be a wage earner on the federal payroll while receiving a military retiree's pension.
  • double-dotted — (of a note) increased to one and three quarters of its original time value by the addition of two dots
  • double-double — a cup of coffee served with two helpings of cream and sugar
  • double-dumped — (of a wool bale) compressed, with two bales occupying the volume-equivalent of one ordinary bale
  • double-duplex — (communications)   (From telegraphy) A full-duplex link with two telegraphers (a sender and a receiver) at each end, to simultaneously transmit in both directions. Compare: single-duplex.
  • double-figure — double-digit.
  • double-glazed — of, having, or provided with double glazing: double-glazed windows and doors.
  • double-header — Sports. two games, as of baseball, between the same teams on the same day in immediate succession. two games, as of basketball, between two different pairs of teams on the same day in immediate succession.
  • double-minded — wavering or undecided in mind.
  • double-nickel — the national speed limit of 55 miles per hour as established in 1974 on U.S. highways.
  • double-ripper — bobsled (def 2).
  • double-tailed — (of a lion) represented with two tails joined together next to the body.
  • double-tongue — to interrupt the wind flow by moving the tongue as if pronouncing t and k alternately, especially in playing rapid passages or staccato notes on a brass instrument.
  • doublespeaker — a person who uses doublespeak
  • doubtlessness — The property of being doubtless.
  • dumbfoundedly — In a dumbfounded manner.
  • durable goods — Durable goods or durables are goods such as televisions or cars which are expected to last a long time, and are bought infrequently.
  • ebola (virus) — an RNA virus (family Filoviridae) that causes fever, internal bleeding, and, often, death
  • 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.
  • encourageable — Able to be encouraged; suggestible.
  • equilibration — The formation, or maintenance, of an equilibrium.
  • equilibratory — Relating to the physical sense of balance, or equilibrium.
  • faculty board — the governing body of a faculty
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