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13-letter words containing t, o, b, e

  • 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-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-dotted — (of a note) increased to one and three quarters of its original time value by the addition of two dots
  • 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.
  • doubtlessness — The property of being doubtless.
  • down the tube — a hollow, usually cylindrical body of metal, glass, rubber, or other material, used especially for conveying or containing liquids or gases.
  • drop the ball — a spherical or approximately spherical body or shape; sphere: He rolled the piece of paper into a ball.
  • east by north — a point on the compass 11°15′ north of east. Abbreviation: EbN.
  • east by south — a point on the compass 11°15prime; south of east. Abbreviation: EbS.
  • 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
  • ectosymbionts — Plural form of ectosymbiont.
  • 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 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.
  • embryogenetic — embryogenic
  • employability — (uncountable) The state or quality of being employable.
  • endosymbiotic — Of or pertaining to endosymbiosis.
  • equilibration — The formation, or maintenance, of an equilibrium.
  • equilibratory — Relating to the physical sense of balance, or equilibrium.
  • erythroblasts — Plural form of erythroblast.
  • erythrophobia — Abnormal and persistent fear of blushing.
  • ethnobotanist — A scholar or researcher in the field of ethnobotany.
  • exacerbations — Plural form of exacerbation.
  • exceptionable — Open to objection; causing disapproval or offense.
  • executive job — a job in which a person is responsible for the administration of a project, activity, or business
  • exhibitioners — Plural form of exhibitioner.
  • exhibitionism — Extravagant behavior that is intended to attract attention to oneself.
  • exhibitionist — A person who behaves in an extravagant way in order to attract attention.
  • exportability — The property of being exportable.
  • farm-to-table — noting or relating to fresh, locally sourced food sold to local consumers or restaurants: farm-to-table meats and seasonal vegetables.
  • festoon blind — a window blind consisting of vertical rows of horizontally gathered fabric that may be drawn up to form a series of ruches
  • filibusterous — resembling a filibuster or the actions of a filibuster
  • flat-bottomed — (of boats) having a flat bottom.
  • flatbed lorry — a lorry with a flat platform for its body
  • float chamber — Automotive. the bowl-shaped section of a carburetor in which a reserve of fuel is maintained, the fuel level being regulated by a float.
  • floating debt — short-term government borrowing, esp by the issue of three-month Treasury bills
  • flower beetle — any of numerous, usually brightly colored beetles, as of the families Malachiidae and Dasytidae, that live on flowers and are predaceous on other insects.
  • flutterboards — Plural form of flutterboard.
  • foerstner bit — a bit for drilling blind holes, guided from the rim rather than from the center to permit it to enter the wood at an oblique angle.
  • fontainebleau — a town in N France, SE of Paris: famous palace, long a favorite residence of French kings; extensive forest.
  • foot the bill — pay the costs
  • football game — soccer match
  • for the birds — any warm-blooded vertebrate of the class Aves, having a body covered with feathers, forelimbs modified into wings, scaly legs, a beak, and no teeth, and bearing young in a hard-shelled egg.
  • fort campbell — a military reservation in SW Kentucky and NW Tennessee, NW of Clarksville, Tenn., and SW of Hopkinsville, Ky.
  • fort dearborn — a former U.S. fort on the site of Chicago, 1803–37.
  • full-bottomed — (of a wig) long at the back
  • galveston bay — an inlet of the Gulf of Mexico.
  • gerontophobia — a fear of old people.
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