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16-letter words containing a, i, r, c, u

  • pneumatic trough — a trough filled with liquid, especially water, for collecting gases in bell jars or the like by displacement.
  • poitou-charentes — a region of W central France, on the Bay of Biscay: mainly low-lying
  • primary consumer — (in the food chain) an animal that feeds on plants; a herbivore.
  • primary producer — any green plant or any of various microorganisms that can convert light energy or chemical energy into organic matter.
  • principal clause — the main clause.
  • project guardian — (project, security)   A project which grew out of the ARPA support for Multics and the sale of Multics systems to the US Air Force. The USAF wanted a system that could be used to handle more than one security classification of data at a time. They contracted with Honeywell and MITRE Corporation to figure out how to do this. Project Guardian led to the creation of the Access Isolation Mechanism, the forerunner of the B2 labeling and star property support in Multics. The DoD Orange Book was influenced by the experience in building secure systems gained in Project Guardian.
  • propylthiouracil — a white crystalline compound, C 7 H 1 0 N 2 OS, that interferes with the synthesis of thyroid hormone by the thyroid gland: used in the treatment of hyperthyroidism.
  • prosecution case — the case brought against someone by a legal authority
  • proxima centauri — the nearest star to the sun at a distance of 4.3 light-years, part of the Alpha Centauri triple-star system located in the constellation Centaurus.
  • pseudo-patriotic — of, like, suitable for, or characteristic of a patriot.
  • pseudo-realistic — interested in, concerned with, or based on what is real or practical: a realistic estimate of costs; a realistic planner.
  • pseudohistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
  • public relations — (used with a plural verb) the actions of a corporation, store, government, individual, etc., in promoting goodwill between itself and the public, the community, employees, customers, etc.
  • public transport — fare-paying travel
  • puddling-furnace — the act of a person or thing that puddles.
  • punctuation mark — any of a group of conventional marks or characters used in punctuation, as the period, comma, semicolon, question mark, or dash.
  • purchasing agent — a person who buys materials, supplies, equipment, etc., for a company.
  • purchasing power — Also called buying power. the ability to purchase goods and services.
  • pyruvic aldehyde — a yellow, liquid compound, C 3 H 4 O 2 , containing both an aldehyde and a ketone group, usually obtained in a polymeric form: used chiefly in organic synthesis.
  • quadricentennial — of, relating to, or marking the completion of a period of four hundred years.
  • quasi-commercial — of, relating to, or characteristic of commerce.
  • quasi-compulsory — required; mandatory; obligatory: compulsory education.
  • quasi-democratic — pertaining to or of the nature of democracy or a democracy.
  • quasi-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
  • quatercentennial — pertaining to or marking a period of 400 years.
  • radius of action — the maximum distance that a ship, aircraft, or land vehicle can travel from its base and return without refuelling
  • rambunctiousness — difficult to control or handle; wildly boisterous: a rambunctious child.
  • rating community — an online community based around a website that allows members to rate each other's photographs, qualifications, etc, as well as those of applicants, and which only those approved by existing members are allowed to join
  • reaction turbine — a turbine driven by the reactive force of a fluid passing through the rotor blades.
  • real-time euclid — Real-time language, restriction to time-bounded constructs. ["Real-Time Euclid: A Language for Reliable Real-Time Systems", E. Kligerman et al, IEEE Trans Software Eng SE-12(9):941-1986-09-949].
  • rearguard action — an action fought by a rearguard
  • reconceptualized — to form into a concept; make a concept of.
  • rectus abdominis — a long flat muscle that extends along the whole length of both sides of the abdomen. It flexes the vertebral column, particularly the lumbar portion; it also tenses the anterior abdominal wall and assists in compressing the abdominal contents
  • regional council — the governing body in certain countries of a particular region or administrative division
  • reinsurance pool — the grouping of insurers that provide partial or complete insurance coverage to other insurers for (a risk on which a policy has already been issued)
  • reporting clause — A reporting clause is a clause which indicates that you are talking about what someone said or thought. For example, in 'She said that she was hungry', 'She said' is a reporting clause.
  • republican party — one of the two major political parties in the U.S.: originated 1854–56.
  • republican river — a river flowing E from E Colorado through Nebraska and Kansas into the Kansas River. 422 miles (680 km) long.
  • residual current — an electric current that continues to flow in a device, etc when there is no voltage supply, due to electrons emitted by heat, etc
  • resonant circuit — A resonant circuit combines an inductor and capacitor to make a circuit that responds to a frequency.
  • riau archipelago — a group of islands belonging to Indonesia, off the SE coast of the Malay Peninsula, at the entrance to the Strait of Malacca. 36,510 sq. mi. (94,561 sq. km).
  • ribonucleic acid — RNA.
  • riccati equation — a differential equation, dy/dx + fy 2 + gy + h = 0, where f, g, and h are functions of x.
  • rich tea biscuit — any of various semisweet biscuits
  • right about face — Military. a command, given to a soldier or soldiers at attention, to turn the body about toward the right so as to face in the opposite direction. the act of so turning in a prescribed military manner.
  • risus sardonicus — fixed contraction of the facial muscles resulting in a peculiar distorted grin, caused esp by tetanus
  • river carpsucker — a carpsucker, Carpiodes carpio, found in silty rivers of the central U.S. south to Mexico.
  • roundabout chair — corner chair.
  • sauce americaine — a sauce prepared with tomatoes, garlic, wine, shallots, and herbs. See also à l’américaine.
  • saxo grammaticus — c1150–1206? Danish historian and poet.
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