18-letter words containing a, n, y, u
- a month of sundays — a long unspecified period
- alumina trihydrate — a crystalline, water-insoluble powder, Al(OH) 3 or Al 2 O 3 ⋅3H 2 O, obtained chiefly from bauxite: used in the manufacture of glass, ceramics, and printing inks, in dyeing, and in medicine as an antacid and in the treatment of ulcers.
- aluminum glycinate — a white, bland-tasting powder, C 2 H 6 AlNO 4 , that is used as an antacid.
- aluminum hydroxide — a white powder, Al(OH)3, obtained from bauxite and used to make glass, paper, etc. and in antacids
- ammonium hydroxide — a compound existing only in aqueous solution, formed when ammonia dissolves in water to form ammonium ions and hydroxide ions. Formula: NH4OH
- anterior pituitary — a small, somewhat cherry-shaped double structure attached by a stalk to the base of the brain and constituting the master endocrine gland affecting all hormonal functions in the body, consisting of an anterior region ((anterior pituitary) or (adenohypophysis)) that develops embryonically from the roof of the mouth and that secretes growth hormone, LH, FSH, ACTH, TSH, and MSH, a posterior region ((posterior pituitary) or (neurohypophysis)) that develops from the back of the forebrain and that secretes the hormones vasopressin and oxytocin, and an intermediate part (pars intermedia) derived from the anterior region but joined to the posterior region, that secretes the hormone MSH in lower vertebrates.
- anthropomorphously — In an anthropomorphous manner; in a manner resembling that of a human.
- anti-revolutionary — of, pertaining to, characterized by, or of the nature of a revolution, or a sudden, complete, or marked change: a revolutionary junta.
- aperture synthesis — an array of radio telescopes used in radio astronomy to simulate a single large-aperture telescope. Some such instruments use movable dishes while others use fixed dishes
- army of occupation — an army that goes into a defeated country to enforce peace terms, keep order, etc.
- asynchronous logic — (architecture) A data-driven circuit design technique where, instead of the components sharing a common clock and exchanging data on clock edges, data is passed on as soon as it is available. This removes the need to distribute a common clock signal throughout the circuit with acceptable clock skew. It also helps to reduce power dissipation in CMOS circuits because gates only switch when they are doing useful work rather than on every clock edge. There are many kinds of asynchronous logic. Data signals may use either "dual rail encoding" or "data bundling". Each dual rail encoded Boolean is implemented as two wires. This allows the value and the timing information to be communicated for each data bit. Bundled data has one wire for each data bit and another for timing. Level sensitive circuits typically represent a logic one by a high voltage and a logic zero by a low voltage whereas transition signalling uses a change in the signal level to convey information. A speed independent design is tolerant to variations in gate speeds but not to propagation delays in wires; a delay insensitive circuit is tolerant to variations in wire delays as well. The purest form of circuit is delay-insensitive and uses dual-rail encoding with transition signalling. A transition on one wire indicates the arrival of a zero, a transition on the other the arrival of a one. The levels on the wires are of no significance. Such an approach enables the design of fully delay-insensitive circuits and automatic layout as the delays introduced by the layout compiler can't affect the functionality (only the performance). Level sensitive designs can use simpler, stateless logic gates but require a "return to zero" phase in each transition.
- at your fingertips — If you say that something is at your fingertips, you approve of the fact that you can reach it easily or that it is easily available to you.
- attribution theory — the theory that tries to explain how people link actions and emotions to particular causes, both internal and external
- auditory phonetics — the branch of phonetics concerned with the perception of speech sounds by humans
- auxiliary equation — characteristic equation (def 1b).
- auxiliary language — a language, as Esperanto, Swahili, or English, used for intercommunication by speakers of various other languages.
- auxiliary-equation — Mathematics. the characteristic polynomial of a given matrix, equated to zero. Also called auxiliary equation. an equation with one variable and equated to zero, which is derived from a given linear differential equation and in which the coefficient and power of the variable in each term correspond to the coefficient and order of a derivative in the original equation.
- available quantity — The available quantity of a product is the amount of that product available, or currently available in the store.
- aviation authority — a body that is responsible for overseeing the aviation industry
- beauty competition — a competition in which the participants, usually women, are judged on their attractiveness, with a prize, and often a title, awarded to the winner
- between you and me — in the space separating (two points, objects, etc.): between New York and Chicago.
- boole's inequality — the theorem that the probability of several events occurring is less than or equal to the sum of the probabilities of each event occurring.
- boundary condition — a stated restriction, usually in the form of an equation, that limits the possible solutions to a differential equation.
- bounty-fed farmers — farmers who benefit from subsidies
- break your silence — If someone breaks their silence about something, they talk about something that they have not talked about before or for a long time.
- bring-and-buy sale — A bring-and-buy sale is an informal sale to raise money for a charity or other organization. People who come to the sale bring things to be sold and buy things that other people have brought.
- casualty insurance — insurance providing coverage against accident and property damages, as automobile, theft, liability, and explosion insurance, but not including life insurance, fire insurance, or marine insurance.
- chebyshev equation — Tchebycheff equation.
- community hospital — (in the US) a local hospital
- community language — a language spoken by members of a minority group or community within a majority language context
- conductivity water — water that has a conductivity of less than 0.043 × 10–6 S cm–1
- constituency party — a branch of a political party operating within a constituency
- coronary care unit — a unit in a hospital dedicated to treating coronary heart disease
- coronary occlusion — partial or total obstruction of a coronary artery, as by a thrombus, usually resulting in infarction of the myocardium.
- coronary-care unit — a specialized hospital unit for the early care and treatment of heart-attack patients. Abbreviation: CCU.
- countercyclicality — The quality of being countercyclical.
- countryside agency — (in England) a government agency that promotes the conservation and enjoyment of the countryside and aims to stimulate employment in rural areas
- deficiency account — an account summarizing the financial condition of an individual or company in danger of bankruptcy.
- 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.
- distinguishability — to mark off as different (often followed by from or by): He was distinguished from the other boys by his height.
- dysfunctionalities — Plural form of dysfunctionality.
- elementary student — primary school pupil
- 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.
- eyewitness account — a description given by someone who was present at an event
- fast-food industry — the industry surrounding fast-food restaurants
- free-range poultry — poultry kept in natural nonintensive conditions
- gainful employment — an occupation that pays an income
- gamblers anonymous — an organization that holds group meetings to help people who are addicted to gambling
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