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18-letter words containing y

  • entry requirements — the types and grades of examination required to enter a university
  • environment agency — an official agency providing information on environmental issues, esp rivers, flooding and pollution
  • epicycloidal wheel — one of the planetary gears of an epicyclic train
  • ethnopsychological — Relating to ethnopsychology.
  • 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
  • every now and then — from time to time; occasionally
  • 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
  • eyeball to eyeball — If you are eyeball to eyeball with someone, you are in their presence and involved in a meeting, dispute, or contest with them. You can also talk about having an eyeball to eyeball meeting or confrontation.
  • eyewitness account — a description given by someone who was present at an event
  • fallot's tetralogy — a congenital heart disease in which there are four defects: pulmonary stenosis, enlarged right ventricle, a ventricular septal defect, and an aorta whose origin lies over the septal defect. In babies suffering this disease the defects can be corrected by surgery
  • family-size packet — a packet large enough to be suitable for a family
  • family-tree theory — a theory that describes language change in terms of genetically related languages developing in successive splits from a common parent language, such as Indo-European, as depicted by a family tree diagram.
  • fantasy basketball — imagination, especially when extravagant and unrestrained.
  • faraday dark space — the dark region between the negative glow and the positive column in a vacuum tube occurring when the pressure is low.
  • farmer-labor party — a political party in Minnesota, founded in 1920 and merged with the Democratic Party in 1944.
  • fast-food industry — the industry surrounding fast-food restaurants
  • fatty degeneration — deterioration of the cells of the body, accompanied by the formation of fat globules within the diseased cells.
  • feast of orthodoxy — a solemn festival held on the first Sunday of Lent (Orthodoxy Sunday) commemorating the restoration of the use of icons in the church (a.d. 842) and the triumph over all heresies.
  • fifth monarchy men — (during the Commonwealth in the 17th century) a militant sect of Puritans who identified the fifth monarchy with the millennial reign of Christ and who believed they should help to inaugurate that reign by force.
  • 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.
  • first year infants — a class for young children who have just started school
  • fissure of sylvius — lateral fissure.
  • five hundred rummy — a variety of rummy in which the winner is the first player to score 500 points.
  • fixed-term tenancy — a tenancy arrangement for a particular and fixed period
  • flat-panel display — a type of thin, lightweight video display that uses liquid crystals or electroluminescence to reflect images.
  • fluorodeoxyglucose — (carbohydrate) A fluorine analog of glucose that is used in positron emission tomography.
  • fly in the face of — to move through the air using wings.
  • fly off the handle — a part of a thing made specifically to be grasped or held by the hand.
  • forensic chemistry — the application of facts concerning chemistry to questions of civil and criminal law.
  • fragile x syndrome — a widespread form of mental retardation caused by a faulty gene on the X chromosome.
  • fragile-x syndrome — an inherited condition characterized by learning disability: affected individuals have an X-chromosome that is easily damaged under certain conditions
  • 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.
  • gainful employment — an occupation that pays an income
  • gamblers anonymous — an organization that holds group meetings to help people who are addicted to gambling
  • gas chromatography — a chromatograph used for the separation of volatile substances.
  • gas plasma display — (electronics)   A type of display containing super-energised neon gas, used mostly in flat monitor and television screens. Each pixel has a transistor that controls its colour and brightness.
  • gastroduodenostomy — See under gastroenterostomy.
  • general relativity — the state or fact of being relative.
  • gensym corporation — (company)   A company that supplies software and services for intelligent operations management. Common applications include quality management, process optimisation, dynamic scheduling, network management, energy and environmental management, and process modelling and simulation. Their products include G2.
  • geodetic surveying — the surveying of the earth's surface, making allowance for its curvature and giving an accurate framework for smaller-scale surveys
  • gestalt psychology — (sometimes lowercase) the theory or doctrine that physiological or psychological phenomena do not occur through the summation of individual elements, as reflexes or sensations, but through gestalts functioning separately or interrelatedly.
  • get one's end away — to have sexual intercourse
  • get out of the way — move aside
  • 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
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