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13-letter words containing o, r, t, c, l, u

  • direct labour — work that is an essential part of a production process or the provision of a service
  • documentarily — Also, documental [dok-yuh-men-tl] /ˌdɒk yəˈmɛn tl/ (Show IPA). pertaining to, consisting of, or derived from documents: a documentary history of France.
  • dual controls — If a vehicle used by a driving instructor has dual controls, it has pedals on the passenger's side as well as on the driver's side to allow the driving instructor to brake should the learner try to move off when it is dangerous to do so
  • electrocuting — Present participle of electrocute.
  • electrocution — The accidental death or suicide by electric shock.
  • 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.
  • electrophorus — A device for repeatedly generating static electricity by induction.
  • enculturation — The gradual acquisition of the characteristics and norms of a culture or group by a person, another culture, etc.
  • estrous cycle — the regular female reproductive cycle of most placental mammals that is under hormonal control and includes a period of heat, followed by ovulation and complex changes of the uterine lining
  • ethnocultural — Relating to or denoting a particular ethnic group.
  • faculty board — the governing body of a faculty
  • federal court — a court of a federal government, especially one established under the Constitution of the United States.
  • flag of truce — a white flag displayed as an invitation to the enemy to confer, or carried as a sign of peaceful intention by one sent to deal with the enemy.
  • floricultural — Of or pertaining to floriculture.
  • fluorescently — In a fluorescent manner; using fluorescence.
  • fluoroacetate — a toxic chemical compound, C2H2FNaO2, occurring naturally in certain plants, and commonly used as rat poison
  • fluoroplastic — any of the plastics, as Teflon, in which hydrogen atoms of the hydrocarbon chains are replaced by fluorine atoms.
  • fluoroscopist — One who carries out fluoroscopy.
  • formularistic — relating to formularization
  • fractocumulus — low ragged slightly bulbous cloud, often appearing below nimbostratus clouds during rain
  • fuel injector — injector (def 2b).
  • futurological — Pertaining to futurology.
  • general court — the state legislature of Massachusetts or New Hampshire.
  • gesticulatory — Making a lot of gesticulations.
  • glamour stock — a popular stock that rises quickly or continuously in price and attracts large numbers of investors.
  • graticulation — the division of a design, plan, etc into squares in order to improve the accuracy of enlargement or reduction
  • great council — (in Norman England) an assembly composed of the king's tenants in chief that served as the principal council of the realm and replaced the witenagemot.
  • ground tackle — equipment, as anchors, chains, or windlasses, for mooring a vessel away from a pier or other fixed moorings.
  • hallucinatory — pertaining to or characterized by hallucination: hallucinatory visions.
  • halobacterium — Any of various extremophiles, of genus Halobacterium, found in water saturated or nearly saturated with salt.
  • heteroclitous — heteroclite
  • horticultural — the cultivation of a garden, orchard, or nursery; the cultivation of flowers, fruits, vegetables, or ornamental plants.
  • hydrotelluric — (chemistry) Formed by hydrogen and tellurium.
  • illocutionary — pertaining to a linguistic act performed by a speaker in producing an utterance, as suggesting, warning, promising, or requesting.
  • inclinatorium — an instrument invented by Robert Norman in 1576, used to determine the degree to which a magnetic needle dips towards the earth; a dipping needle
  • incongruently — not congruent.
  • inconstruable — unable to be construed
  • incorruptable — Misspelling of incorruptible.
  • incorruptible — not corruptible: incorruptible integrity.
  • incorruptibly — In an incorruptible manner.
  • inculturation — enculturation.
  • indolebutyric — as in indolebutyric acid, a synthetic plant growth regulator
  • infructuously — in an infructuous or unfruitful manner; fruitlessly
  • instructional — the act or practice of instructing or teaching; education.
  • intercommunal — used or shared in common by everyone in a group: a communal jug of wine.
  • interlocution — conversation; dialogue.
  • interlocutors — a person who takes part in a conversation or dialogue.
  • interlocutory — of the nature of, pertaining to, or occurring in conversation: interlocutory instruction.
  • interlocutrix — A female interlocutor.
  • interosculant — Mutually touching or intersecting.
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