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13-letter words containing b, r, o, t, u

  • dinoturbation — the effect or process of trampling and major disturbance to sedimentary rock layers caused by the movement of dinosaurs
  • direct labour — work that is an essential part of a production process or the provision of a service
  • disambiguator — Anything that serves to disambiguate.
  • distributions — Plural form of distribution.
  • draughtboards — Plural form of draughtboard.
  • draughtsboard — The board on which draughts is played, resembling a chessboard but (depending on the game variation) often having a side length of ten squares rather than eight.
  • 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.
  • 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
  • filibusterous — resembling a filibuster or the actions of a filibuster
  • flutterboards — Plural form of flutterboard.
  • fruiting body — an organ that produces spores; fructification.
  • funambulatory — relating to tightrope-walking
  • ground beetle — any of numerous nocturnal, terrestrial beetles of the family Carabidae that feed chiefly on other insects.
  • gubernatorial — of or relating to a state governor or the office of state governor.
  • halobacterium — Any of various extremophiles, of genus Halobacterium, found in water saturated or nearly saturated with salt.
  • harbourmaster — (British, Canada, nautical) An official responsible for the enforcement of regulations in a port.
  • harold burton — Harold Hitz [hits] /hɪts/ (Show IPA), 1888–1964, associate justice of the U.S. Supreme Court 1945–58.
  • heart trouble — cardiac condition
  • honour bright — an exclamation pledging honour
  • honourability — A state or condition or being honourable.
  • hot cross bun — a bun with a cross of frosting on it, eaten chiefly during Lent.
  • hunt saboteur — A hunt saboteur is someone who tries to stop a hunt from taking place or being successful because they believe it is cruel to the animal being hunted.
  • hunter's robe — pothos.
  • immunosorbent — an insoluble surface to which a specific antibody is attached for the purpose of removing the corresponding antigen from a solution or suspension.
  • inconstruable — unable to be construed
  • incorruptable — Misspelling of incorruptible.
  • incorruptible — not corruptible: incorruptible integrity.
  • incorruptibly — In an incorruptible manner.
  • indolebutyric — as in indolebutyric acid, a synthetic plant growth regulator
  • inobtrusively — in an unobtrusive manner
  • insubordinate — not submitting to authority; disobedient: an insubordinate soldier.
  • insupportable — not endurable; unbearable; insufferable: insupportable pain.
  • insupportably — In an insupportable manner.
  • kennebunkport — a town in SW Maine: summer resort.
  • labour market — When you talk about the labour market, you are referring to all the people who are able to work and want jobs in a country or area, in relation to the number of jobs there are available in that country or area.
  • labour unrest — unrest or dissatisfaction displayed by workers, often in the form of strikes, and sometimes violent disputes, etc, which disrupts normal business
  • lepton number — in a process involving elementary particles, the total number of leptons minus the total number of antileptons.
  • libel tourism — the act of suing a writer for alleged defamation in a foreign jurisdiction where there are weak libel laws.
  • libel tourist — someone who engages in libel tourism.
  • lubber's knot — an improperly made reef or square knot, likely to slip loose.
  • lunar orbiter — one of a series of space probes that orbited and photographed the moon in 1966 and 1967.
  • moebius strip — Möbius strip
  • money to burn — more money than one needs
  • mottled umber — a brownish geometrid moth, Erannis defoliaria, whose looper larvae can strip branches and even trees
  • mount gambier — a city in S Australia.
  • mountainboard — a type of skateboard specially designed for rough terrain and steep slopes, having four large wheels linked by a suspension system
  • mountebankery — The practices of a mountebank; quackery; boastful and vain pretenses.
  • mouthbreather — a person who breathes through the mouth instead of through the nose
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