18-letter words containing i, s, a, g, o
- concussion grenade — a grenade designed to inflict damage by the force of its detonation rather than by the fragmentation of its casing.
- congregate housing — a type of housing in which each individual or family has a private bedroom or living quarters but shares with other residents a common dining room, recreational room, or other facilities.
- congregationalists — a form of Protestant church government in which each local religious society is independent and self-governing.
- congress of vienna — the European conference held at Vienna from 1814–15 to settle the territorial problems left by the Napoleonic Wars
- conjugate solution — a system of liquids, each partially miscible in the other, existing with a common interface, consisting of a saturated solution of one in the other.
- conservation grade — relating to food produced using traditional methods where possible, and following strict specifications regarding animal feeds and welfare, the use of chemical fertilizers, wildlife conservation, and land management
- continuous casting — a technique of casting ingots, bars, etc., in which the metal is poured into an open-ended mold, being withdrawn as it solidifies so that the solid portion of the piece retains the fluid portion within the mold.
- cooking facilities — equipment necessary for cooking
- counter-aggression — the action of a state in violating by force the rights of another state, particularly its territorial rights; an unprovoked offensive, attack, invasion, or the like: The army is prepared to stop any foreign aggression.
- countryside agency — (in England) a government agency that promotes the conservation and enjoyment of the countryside and aims to stimulate employment in rural areas
- crested dog's-tail — a common wiry perennial grass, Cynosurus cristatus, of meadows and pasture
- cultural sociology — the study of the origins and development of societal institutions, norms, and practices.
- cumulative scoring — a method of scoring in which the score of a partnership is taken as the sum of their scores on all hands played.
- dagwood (sandwich) — a thick sandwich with a variety of fillings, often of apparently incompatible foods
- diagnostic testing — Diagnostic testing is the testing of a vehicle, or one of its systems or parts, in order to identify why it is not working properly.
- digital switchover — the process of changing the method of transmitting television from analogue to digital format
- digital television — a television broadcasting technology in which signals are transmitted as a sequence of binary numbers.
- digital video disc — Digital Versatile Disc
- diphosphoglycerate — an ester of phosphoric acid and glyceric acid that occurs in the blood and that promotes the release of hemoglobin-bound oxygen.
- directional signal — any of four signal lights on the front left, front right, rear left, and rear right of an automotive vehicle that, when actuated by the driver, flash in pairs on the side toward which a turn is to be made.
- division algorithm — the theorem that an integer can be written as the sum of the product of two integers, one a given positive integer, added to a positive integer smaller than the given positive integer. Compare Euclidean algorithm.
- dwarf storage unit — (humour) (DSU) An IBM term for a cupboard.
- dynamic psychology — any system of psychology that emphasizes the interaction between different motives, emotions, and drives
- eastern algonquian — a subgroup of the Algonquian language family, comprising the languages spoken aboriginally from Nova Scotia to northeastern North Carolina.
- eggshell porcelain — a type of very thin translucent porcelain originally made in China
- electoral register — An electoral register is an official list of all the people who have the right to vote in an election.
- electrocardiograms — Plural form of electrocardiogram.
- electroretinograms — Plural form of electroretinogram.
- equinoctial spring — either of the two highest spring tides that occur at the equinoxes
- ethnomusicological — Relating to or pertaining to ethnomusicology.
- ethnopsychological — Relating to ethnopsychology.
- euclid's algorithm — (algorithm) (Or "Euclidean Algorithm") An algorithm for finding the greatest common divisor (GCD) of two numbers. It relies on the identity gcd(a, b) = gcd(a-b, b) To find the GCD of two numbers by this algorithm, repeatedly replace the larger by subtracting the smaller from it until the two numbers are equal. E.g. 132, 168 -> 132, 36 -> 96, 36 -> 60, 36 -> 24, 36 -> 24, 12 -> 12, 12 so the GCD of 132 and 168 is 12. This algorithm requires only subtraction and comparison operations but can take a number of steps proportional to the difference between the initial numbers (e.g. gcd(1, 1001) will take 1000 steps).
- 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.
- exercise programme — a programme detailing a range of physical exercises and the amount of time each exercise should be performed, used especially in gymnasiums, where they are typically tailored to individuals' needs
- far eastern region — former name of Khabarovsk.
- farewell-to-spring — a slender, showy plant, Clarkia amoena, of the evening primrose family, native to western North America, having satiny, cup-shaped, lilac-crimson or reddish-pink flowers and roundish fruit.
- fibrocartilaginous — a type of cartilage having a large number of fibers.
- forwarding address — address for mail to be sent on
- foundling hospital — an institutional home for foundlings.
- 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
- frederick douglass — Frederick, 1817–95, U.S. ex-slave, abolitionist, and orator.
- functional testing — (testing) (Or "black-box testing", "closed-box testing") The application of test data derived from functional requirements without regard to how the system is implemented.
- funding operations — the conversion of government floating stock or short-term debt into holdings of long-term bonds
- galilean telescope — a refracting telescope that forms an erect image, consisting of an objective of relatively long focal length that causes light rays to converge and an eyepiece of short focal length that causes them to diverge.
- galvanic corrosion — Galvanic corrosion is a type of corrosion caused by bringing together two different metals, one of which corrodes more rapidly than it would alone while the other corrodes less rapidly.
- gamma distribution — a continuous two-parameter distribution from which the chi-square and exponential distributions are derived, written Gamma (α. β), where α and β are greater than zero, and defined in terms of the gamma function
- garden loosestrife — any of various plants belonging to the genus Lysimachia, of the primrose family, having clusters of usually yellow flowers, as L. vulgaris (garden loosestrife) or L. quadrifolia (whorled loosestrife)
- gastroenterologist — the study of the structure, functions, and diseases of digestive organs.
- general confession — a prayer confessing sins