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21-letter words containing r, u, n, l

  • functional imperative — a requirement for the survival of any social system, as communication, control of conflict, or socialization.
  • fundamental frequency — the lowest frequency at which a medium will freely oscillate.
  • geiger-muller counter — an instrument for detecting ionizing radiations, consisting of a gas-filled tube in which electric-current pulses are produced when the gas is ionized by radiation, and of a device to register these pulses: used chiefly to measure radioactivity.
  • general court-martial — a court-martial having the authority to try any offense against military law and to impose a sentence of dishonorable discharge or of death when provided by law.
  • george bryan brummell — George Bryan II, Beau Brummell.
  • gird (up) one's loins — to get ready to do something difficult or strenuous
  • gold bullion standard — a gold standard in which gold is not coined but may be purchased at a fixed price for foreign exchange.
  • goldbach's conjecture — the conjecture that every even number greater than two is the sum of two prime numbers
  • greater sunda islands — a group of islands in the W Malay Archipelago, forming the larger part of the Sunda Islands: consists of Borneo, Sumatra, Java, and Sulawesi
  • guaranteed scheduling — (algorithm)   A scheduling algorithm used in multitasking operating systems that guarantees fairness by monitoring the amount of CPU time spent by each user and allocating resources accordingly.
  • hindu-arabic numerals — Arabic numeral.
  • horizontal tabulation — (character)   (tab, Control-I, HT, ASCII 9) A character which when displayed or printed causes the following character to be placed at the next "tabstop" - the column whose number is a multiple of the current tab width. Commonly (especially in Unix(?)) the tab width is eight, so, counting from the left margin (column zero), the tab stops are at columns 8, 16, 24, up to the width of the screen or page. A tab width of four or two is often preferred when indenting program source code to conserve indentation. Represented as "\t" in C, Unix, and derivatives.
  • human papilloma virus — a species of virus that causes genital warts. Abbreviation: HPV.
  • illinois bundleflower — a warm-season perennial, Desmanthus illinoensis, having small brown legumes and fernlike leaves, native to North American prairies, glades, and pastures.
  • immunoelectrophoresis — a technique for the separation and identification of mixtures of proteins, consisting of electrophoresis followed by immunodiffusion.
  • immunoelectrophoretic — a technique for the separation and identification of mixtures of proteins, consisting of electrophoresis followed by immunodiffusion.
  • in (or out of) place — in (or out of) the customary, proper, or assigned place
  • in saecula saeculorum — for ever and ever.
  • indigenous australian — another name for Aboriginal and Torres Strait Islander
  • indo-australian plate — a major tectonic division of the earth's crust, comprising India and the Australian continent and adjacent suboceanic basins (the Tasman, South Australian, Mid-Indian, Cocos, and Australian basins); separated from the Eurasian Plate by the Java Trench, from the Pacific Plate by the Tonga-Kermadec Trench, and from the African Plate by a series of mid-ocean ridges (the Carlsberg, Mid-Indian, and Southeast Indian ridges).
  • industrial misconduct — behaviour by an employee that is considered to be negligent or irregular to such an extent that disciplinary action may be taken, usually by agreement between management and the employee's representatives
  • industrial psychology — the application of psychological principles and techniques to business and industrial problems, as in the selection of personnel or development of training programs.
  • industrial revolution — (sometimes initial capital letters) the totality of the changes in economic and social organization that began about 1760 in England and later in other countries, characterized chiefly by the replacement of hand tools with power-driven machines, as the power loom and the steam engine, and by the concentration of industry in large establishments.
  • infectious ectromelia — ectromelia (def 2).
  • inflationary universe — a version of the big bang theory in which the universe underwent very rapid growth during the first fraction of a second before it settled down to its current rate of expansion.
  • instrumental learning — a method of training in which the reinforcement is made contingent on the occurrence of the response
  • insulin shock therapy — a former treatment for mental illness, especially schizophrenia, employing insulin-induced hypoglycemia as a method for producing convulsive seizures.
  • intellectual property — Law. property that results from original creative thought, as patents, copyright material, and trademarks.
  • internal jugular vein — Anatomy. a jugular vein.
  • intersubstitutability — a person or thing acting or serving in place of another.
  • irish republican army — an underground Irish nationalist organization founded to work for Irish independence from Great Britain: declared illegal by the Irish government in 1936, but continues activity aimed at the unification of the Republic of Ireland and Northern Ireland. Abbreviation: IRA, I.R.A.
  • joseph bonaparte gulf — an inlet of the Timor Sea in N Australia. Width: 360 km (225 miles)
  • jump all over someone — to spring clear of the ground or other support by a sudden muscular effort; leap: to jump into the air; to jump out a window.
  • kekule von stradonitz — Friedrich August [free-drikh ou-goo st] /ˈfri drɪx ˈaʊ gʊst/ (Show IPA), 1829–96, German chemist.
  • keto-enol tautomerism — tautomerism in which the tautomers are an enol and a keto form. The change occurs by transfer of a hydrogen atom within the molecule
  • lafcadio's adventures — French Les Caves du Vatican. a novel (1914) by André Gide.
  • language-based editor — language-sensitive editor
  • lap and shoulder belt — a car seat belt
  • launch control center — any of a number of underground U.S. command facilities prepared to launch land-based missiles in event of war.
  • learning difficulties — difficulty experienced in reaching the average standard of people of the same age group as regards intellectual and cognitive skills and performance
  • leave sb in the lurch — If someone leaves you in the lurch, they go away or stop helping you at a very difficult time.
  • liquefied natural gas — a mixture of various gases, esp methane, liquefied under pressure for transportation and used as an engine fuel
  • loch ness monster bug — (humour)   (Or "Bugfoot") A bug which cannot be reproduced or has only been sighted by one person. Named after the mythical creature claimed to inhabit Loch Ness in Scotland.
  • look to one's laurels — any tree of the genus Laurus.
  • lost in the underflow — (jargon)   Too small to be worth considering; more specifically, small beyond the limits of accuracy or measurement. This is a reference to "floating point underflow". The Hacker's Jargon File claimed that it is also a pun on "undertow" (a kind of fast, cold current that sometimes runs just offshore and can be dangerous to swimmers). "Well, sure, photon pressure from the stadium lights alters the path of a thrown baseball, but that effect gets lost in the underflow". Compare epsilon, epsilon squared; see also overflow bit.
  • magnesium trisilicate — a white, fine, odorless and tasteless powder, Mg 2 O 8 Si 3 ⋅nH 2 O, used industrially to absorb odors and decolorize and pharmaceutically as an antacid.
  • maple-leaved viburnum — dockmackie.
  • mechanical instrument — a musical instrument, such as a barrel organ or music box, that plays a preselected piece of music by mechanical means
  • mechanical metallurgy — the branch of metallurgy dealing with the response of metals to applied forces.
  • medical jurisprudence — forensic medicine.
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