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18-letter words containing y, u, r

  • cultural diversity — the cultural variety and cultural differences that exist in the world, a society, or an institution: Dying languages and urbanization are threats to cultural diversity.
  • cultural sociology — the study of the origins and development of societal institutions, norms, and practices.
  • currency principle — the principle that banks should be permitted to issue notes only against bullion or coin.
  • current efficiency — the ratio of the actual mass of a substance liberated from an electrolyte by the passage of current to the theoretical mass liberated according to Faraday's law
  • cushing's syndrome — a medical condition characterized by obesity, hypertension, excessive hair growth, etc., caused by an overactive adrenal gland or large doses of corticosteroids
  • dafydd ap gruffudd — died 1283, Welsh leader. Claiming the title Prince of Wales (1282), he led an unsuccessful revolt against Edward I: executed
  • death-valley curve — a curve on a graph showing how the capital of a new company plotted against time declines sharply as the venture capital is used up before income reaches predicted levels
  • developing country — a nonindustrialized poor country that is seeking to develop its resources by industrialization
  • dietary supplement — a substance taken in addition to what you eat in order to promote health
  • discourse analysis — the study of the rules or patterns characterizing units of connected speech or writing longer than a sentence.
  • disorderly conduct — any of various petty misdemeanors, generally including nuisances, breaches of the peace, offensive or immoral conduct in public, etc.
  • distress frequency — a radio frequency band reserved for emergency signals from aircraft or ships in distress.
  • distributed memory — (architecture)   The kind of memory in a parallel processor where each processor has fast access to its own local memory and where to access another processor's memory it must send a message via the inter-processor network. Opposite: shared memory.
  • distributed system — A collection of (probably heterogeneous) automata whose distribution is transparent to the user so that the system appears as one local machine. This is in contrast to a network, where the user is aware that there are several machines, and their location, storage replication, load balancing and functionality is not transparent. Distributed systems usually use some kind of client-server organisation. Distributed systems are considered by some to be the "next wave" of computing.
  • domremy-la-pucelle — a village in Lorraine, NE France, SW of Nancy: birthplace of Joan of Arc.
  • duchenne dystrophy — the most common form of muscular dystrophy, usually affecting only boys
  • duty-free shopping — the making of duty-free purchases
  • eat your heart out — Anatomy. a hollow, pumplike organ of blood circulation, composed mainly of rhythmically contractile smooth muscle, located in the chest between the lungs and slightly to the left and consisting of four chambers: a right atrium that receives blood returning from the body via the superior and inferior vena cavae, a right ventricle that pumps the blood through the pulmonary artery to the lungs for oxygenation, a left atrium that receives the oxygenated blood via the pulmonary veins and passes it through the mitral valve, and a left ventricle that pumps the oxygenated blood, via the aorta, throughout the body.
  • eighty-twenty rule — (programming)   The program-design version of the law of diminishing returns. The 80/20 rule says that roughly 80% of the problem can be solved with 20% of the effort that it would take to solve the whole problem. For example, parsing e-mail addresses in "From:" lines in e-mail messages is notoriously difficult if you follow the RFC 2822 specification. However, about 60% of actual "From:" lines are in the format "From: Their Name <[email protected]>", with a far more constrained idea of what can be in "user" or "host" than in RFC 2822. Another 25% just add double-quotes around "Their Name". Matching just those two patterns would thus cover 85% of "From:" lines, with a tiny portion of the code required to fully implement RFC2822. (Adding support for "From: [email protected]" and "From: [email protected] (Their Name) " brings coverage to almost 100%, leaving only really baroque things that RFC-2822 permits, like "From: Pete(A wonderful \) chap)
  • elementary student — primary school pupil
  • energy consumption — amount of energy used
  • entry requirements — the types and grades of examination required to enter a university
  • european community — an economic and political association of European States that came into being in 1967, when the legislative and executive bodies of the European Economic Community merged with those of the European Coal and Steel Community and the European Atomic Energy Community: subsumed into the European Union in 1993
  • evolution strategy — (ES) A kind of evolutionary algorithm where individuals (potential solutions) are encoded by a set of real-valued "object variables" (the individual's "genome"). For each object variable an individual also has a "strategy variable" which determines the degree of mutation to be applied to the corresponding object variable. The strategy variables also mutate, allowing the rate of mutation of the object variables to vary. An ES is characterised by the population size, the number of offspring produced in each generation and whether the new population is selected from parents and offspring or only from the offspring. ES were invented in 1963 by Ingo Rechenberg, Hans-Paul Schwefel at the Technical University of Berlin (TUB) while searching for the optimal shapes of bodies in a flow.
  • expected frequency — the number of occasions on which an event may be presumed to occur on average in a given number of trials
  • fast-food industry — the industry surrounding fast-food restaurants
  • fire in your belly — If you say that someone has fire in their belly, you are expressing approval of them because they are energetic, enthusiastic, and have very strong feelings.
  • first duke of york — a member of the royal house of England that ruled from 1461 to 1485.
  • fissure of sylvius — lateral fissure.
  • five hundred rummy — a variety of rummy in which the winner is the first player to score 500 points.
  • fluorodeoxyglucose — (carbohydrate) A fluorine analog of glucose that is used in positron emission tomography.
  • free-range poultry — poultry kept in natural nonintensive conditions
  • frequency function — probability density function (def 2).
  • frequency response — the effectiveness with which a circuit, device, or system processes and transmits signals fed into it, as a function of the signal frequency.
  • frequency spectrum — The frequency spectrum of an electrical signal is the distribution of the amplitudes and phases of each frequency component against frequency.
  • gamblers anonymous — an organization that holds group meetings to help people who are addicted to gambling
  • gastroduodenostomy — See under gastroenterostomy.
  • geodetic surveying — the surveying of the earth's surface, making allowance for its curvature and giving an accurate framework for smaller-scale surveys
  • gettysburg address — the notable short speech made by President Lincoln on November 19, 1863, at the dedication of the national cemetery at Gettysburg, Pa.
  • give someone curry — to assault (a person) verbally or physically
  • golden opportunity — perfect chance
  • graduated cylinder — a narrow, cylindrical container marked with horizontal lines to represent units of measurement and used to precisely measure the volume of liquids.
  • gulf stream system — a major ocean-current system consisting of the Gulf Stream and the Florida and North Atlantic currents.
  • ha ha only serious — (SF fandom, originally as mutation of HHOK, "Ha Ha Only Kidding") A phrase (often seen abbreviated as HHOS) that aptly captures the flavour of much hacker discourse. Applied especially to parodies, absurdities, and ironic jokes that are both intended and perceived to contain a possibly disquieting amount of truth, or truths that are constructed on in-joke and self-parody. The Jargon File contains many examples of ha-ha-only-serious in both form and content. Indeed, the entirety of hacker culture is often perceived as ha-ha-only-serious by hackers themselves; to take it either too lightly or too seriously marks a person as an outsider, a wannabee, or in larval stage. For further enlightenment on this subject, consult any Zen master. See also AI koan.
  • haud your wheesht! — be silent! hush!
  • have money to burn — to have more money than one needs, so that some can be spent foolishly
  • highbush blueberry — a spreading, bushy shrub, Vaccinium corymbosum, of eastern North America, having small, urn-shaped, white or pinkish flowers, and bluish-black edible fruit, growing about 10 feet (3 meters) high.
  • highbush cranberry — a shrub, Viburnum trilobum, of northern North America, having broad clusters of white flowers and edible scarlet berries.
  • hundred years' war — the series of wars between England and France, 1337–1453, in which England lost all its possessions in France except Calais.
  • hungry programmers — (body)   A group of programmers producing free software.
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