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17-letter words containing o, p, s, n

  • potassium nitrate — a crystalline compound, KNO 3 , produced by nitrification in soil, and used in gunpowders, fertilizers, and preservatives; saltpeter; niter.
  • power supply unit — (hardware)   (PSU) An electronic module that converts high voltage (110 or 240 VAC) alternating current mains electricity into smoothed direct current at the various differnt voltages required by the motherboard; internal peripheral devices, cheifly storage devices: hard disks, CD or DVD, floppy disks and external connections such as USB. A PSU needs a high enough power output rating to supply all the devices connected to it and should output as little as possible electrical noise, both on the output wires and as electromagnetic radiation. See also uninterruptable power supply.
  • prairie provinces — the Canadian provinces of Manitoba, Saskatchewan, and Alberta, which lie in the N Great Plains region of North America: the chief wheat and petroleum producing area of Canada
  • pre-investigation — the act or process of investigating or the condition of being investigated.
  • pre-manifestation — an act of manifesting.
  • pre-modifications — an act or instance of modifying.
  • precision bombing — aerial bombing in which bombs are dropped, as accurately as possible, on a specific, usually small, target.
  • precision casting — investment casting.
  • preferential shop — a shop in which union members are preferred, usually by agreement of an employer with a union.
  • premonstratensian — a member of a religious order founded at Prémontré in N France in 1120 by St Norbert (about 1080–1134)
  • prescription drug — medication available only on doctor's instruction
  • presentation copy — a copy of a book given by the publisher or author
  • presentationalism — a style of production in which the audience is addressed directly with songs, skits, exposition, etc., and no attempt is made at realism.
  • presiding officer — the person who presides over the Scottish Parliament or Welsh Assembly
  • press association — an organization formed for the purpose of gathering news for transmittal to its members. Compare news agency.
  • pressure drawdown — Pressure drawdown is the difference between the reservoir pressure and the flowing wellbore pressure, which drives fluids from the reservoir into the wellbore.
  • previous question — a move that a vote be taken at once on a main question, used especially as a means of cutting off further debate.
  • prison population — all the people who are confined in prison
  • private ownership — the fact of being owned by a private individual or organization, rather than by the state or a public body
  • production string — A production string is the series of pipes through which the oil or gas is brought up from the reservoir.
  • production system — (programming)   A production system consists of a collection of productions (rules), a working memory of facts and an algorithm, known as forward chaining, for producing new facts from old. A rule becomes eligible to "fire" when its conditions match some set of elements currently in working memory. A conflict resolution strategy determines which of several eligible rules (the conflict set) fires next. A condition is a list of symbols which represent constants, which must be matched exactly; variables which bind to the thing they match and "<> symbol" which matches a field not equal to symbol. Example production systems are OPS5, CLIPS, flex.
  • production values — the quality of a media production (such as a film) in regards to elements such as colours, quality, style, etc
  • professional army — an army of trained soldiers
  • professional foul — In football, if a player commits a professional foul, they deliberately do something which is against the rules in order to prevent another player from scoring a goal.
  • program statement — a single instruction in a computer program
  • project assurance — The process of specifying the support system: techniques, internal standards, measurements, tools, and training for a project; counselling the project team in the application of these elements and monitoring the adherence to the standards.
  • prolonged-release — A prolonged-release drug delivers a dose of a medication over an extended period of time.
  • protein synthesis — the process by which amino acids are linearly arranged into proteins through the involvement of ribosomal RNA, transfer RNA, messenger RNA, and various enzymes.
  • protocol analyser — (communications, hardware, networking, testing, tool)   Any device that captures and interprets the network traffic between two or more connected computer systems. The traffic can then be decoded so that it is possible to see what processes are occurring. By examining the flow of traffic, protocol analysers can be used to find out where problems (such as bottlenecks or the failure of a network device) are on a LAN. Advanced protocol analysers can also provide statistics on the traffic that can help to identify trends that may in future lead to further problems with the network.
  • proton microscope — a powerful type of microscope that uses a beam of protons, giving high resolution and sharp contrast
  • prusso-danish war — a war of 1864 between Prussia and Denmark by which Denmark lost Schleswig-Holstein.
  • pseudo-humanistic — a person having a strong interest in or concern for human welfare, values, and dignity.
  • pseudo-scientific — any of various methods, theories, or systems, as astrology, psychokinesis, or clairvoyance, considered as having no scientific basis.
  • psychodiagnostics — the study and evaluation of character or personality in terms of behavioral and anatomical traits, as gesture, posture and physiognomy.
  • psychoeducational — designating or of psychological methods, as intelligence tests, used in evaluating learning ability
  • psycholinguistics — the study of the relationship between language and the cognitive or behavioral characteristics of those who use it.
  • public television — a type of noncommercial, usually educational, television programming funded by the government, grants, viewers, and corporations. Compare educational television.
  • pull one's weight — the amount or quantity of heaviness or mass; amount a thing weighs.
  • push the envelope — a flat paper container, as for a letter or thin package, usually having a gummed flap or other means of closure.
  • put on a pedestal — an architectural support for a column, statue, vase, or the like.
  • put on the gloves — to box
  • put one's feet up — relax
  • put one's hand to — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
  • put the kibosh on — nonsense.
  • put the screws on — a metal fastener having a tapered shank with a helical thread, and topped with a slotted head, driven into wood or the like by rotating, especially by means of a screwdriver.
  • pyroligneous acid — a yellowish, acidic, water-soluble liquid, containing about 10 percent acetic acid, obtained by the destructive distillation of wood: used for smoking meats.
  • pythagorean scale — the major scale as derived acoustically by Pythagoras from the perfect fifth.
  • queen of puddings — a pudding made of moist but firm breadcrumb and custard mixture topped with jam and meringue
  • radio-transparent — transparent to radiation; invisible in x-ray photographs and under fluoroscopy (opposed to radiopaque).
  • recoil escapement — anchor escapement.
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