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15-letter words containing a, g, o

  • grapes of wrath — a novel (1939) by John Steinbeck.
  • graph colouring — (application)   A constraint-satisfaction problem often used as a test case in research, which also turns out to be equivalent to certain real-world problems (e.g. register allocation). Given a connected graph and a fixed number of colours, the problem is to assign a colour to each node, subject to the constraint that any two connected nodes cannot be assigned the same colour. This is an example of an NP-complete problem. See also four colour map theorem.
  • graph reduction — A technique invented by Chris Wadsworth where an expression is represented as a directed graph (usually drawn as an inverted tree). Each node represents a function call and its subtrees represent the arguments to that function. Subtrees are replaced by the expansion or value of the expression they represent. This is repeated until the tree has been reduced to a value with no more function calls (a normal form). In contrast to string reduction, graph reduction has the advantage that common subexpressions are represented as pointers to a single instance of the expression which is only reduced once. It is the most commonly used technique for implementing lazy evaluation.
  • graphologically — In terms of or by means of graphology.
  • grasshopper pie — a custardlike pie, flavored and colored with green crème de menthe and served in a graham-cracker crust.
  • graviperception — the perception of gravity by plants
  • gravitationally — As a result of the force of gravity.
  • gravity anomaly — a deviation from the normal value of gravity at the earth's surface, caused by density differences at depth, for example those caused by a buried mineral body
  • great attractor — a vast concentration of matter whose gravitational pull alters the direction and speed of the Milky Way and other galaxies as they spread apart in the expanding universe posited by the big bang theory.
  • great rebellion — English Civil War.
  • great recession — the protracted worldwide economic recession following the financial crisis of 2007–08
  • great south bay — an Atlantic Ocean inlet, between the S shore of Long Island and Fire Island and other barrier islands. 45 miles (72 km) long.
  • great synagogue — (according to Jewish tradition) a council of 120 members, established by Ezra, that directed the Jews chiefly in religious matters, c450–c200 b.c., and made significant contributions to the Jewish liturgy and Bible.
  • greater omentum — the peritoneal fold attached to the stomach and the colon and hanging over the small intestine.
  • grecian profile — a profile distinguished by the absence of the hollow between the upper ridge of the nose and the forehead, thereby forming a straight line.
  • green mountains — a mountain range in E North America, extending from Canada through Vermont into W Massachusetts: part of the Appalachian system. Highest peak: Mount Mansfield, 1338 m (4393 ft)
  • greenham common — a village in West Berkshire unitary authority, Berkshire; site of a US cruise missile base, and, from 1981, a camp of women protesters against nuclear weapons; although the base had closed by 1991 a small number of women remained until 2000
  • gregorian chant — the plain song or cantus firmus used in the ritual of the Roman Catholic Church.
  • gregorian water — a mixture of water, salt, ashes, and wine, blessed and sprinkled over the altar in the consecration of a church.
  • grey propaganda — propaganda that does not identify its source
  • grind to a halt — If a country's economy or something such as a process grinds to a halt, it gradually becomes slower or less active until it stops.
  • ground landlord — a landlord who receives ground rent.
  • ground-breaking — the act or ceremony of breaking ground for a new construction project.
  • groundbreakings — Plural form of groundbreaking.
  • group insurance — life, accident, or health insurance available to a group of persons, as the employees of a company, under a single contract, usually without regard to physical condition or age of the individuals.
  • group separator — (character)   (GS) ASCII character 29.
  • group therapist — a psychotherapist who conducts group therapy
  • guaranteed bond — a bond issued by a corporation in which payment of the principal, interest, or both is guaranteed by another corporation.
  • guard of honour — A guard of honour is an official parade of troops, usually to celebrate or honour a special occasion, such as the visit of a head of state.
  • guerrilla group — an organized group of guerrillas
  • guild socialism — a form of socialism developed in England in the 20th century, emphasizing decentralization of industry and services with control to be vested in autonomous guilds of workers.
  • gulf of argolis — an inlet of the Aegean Sea, in the E Peloponnese
  • gulf of bothnia — an arm of the Baltic Sea, extending north between Sweden and Finland
  • gulf of finland — an arm of the Baltic Sea between Finland, Estonia, and Russia
  • gulf of fonseca — an inlet of the Pacific Ocean in W Central America
  • gulf of taranto — an inlet of the Ionian Sea, in Apulia in SE Italy
  • guru meditation — (operating system)   The Amiga equivalent of Unix's panic (sometimes just called a "guru" or "guru event"). When the system crashes, a cryptic message of the form "GURU MEDITATION #XXXXXXXX.YYYYYYYY" may appear, indicating what the problem was. An Amiga guru can figure things out from the numbers. In the earliest days of the Amiga, there was a device called a "Joyboard" which was basically a plastic board built onto a joystick-like device; it was sold with a skiing game cartridge for the Atari game machine. It is said that whenever the prototype OS crashed, the system programmer responsible would concentrate on a solution while sitting cross-legged, balanced on a Joyboard, resembling a meditating guru. Sadly, the joke was removed in AmigaOS 2.04. The Jargon File claimed that a guru event had to be followed by a Vulcan nerve pinch but, according to a correspondent, a mouse click was enough to start a reboot.
  • gynandromorphic — (of an organism) Having male and female characteristics.
  • gyrostabilizers — Plural form of gyrostabilizer.
  • hacking x for y — [ITS] Ritual phrasing of part of the information which ITS made publicly available about each user. This information (the INQUIR record) was a sort of form in which the user could fill out various fields. On display, two of these fields were always combined into a project description of the form "Hacking X for Y" (e.g. ""Hacking perceptrons for Minsky""). This form of description became traditional and has since been carried over to other systems with more general facilities for self-advertisement (such as Unix plan files).
  • haemoflagellate — a flagellate protozoan, such as a trypanosome, that is parasitic in the blood
  • haemoglobinuria — the presence of haemoglobin in the urine
  • haemoglobinuric — relating to the presence of haemoglobin in the urine
  • hair hygrometer — a hygrometer actuated by the changes in length of a strand of human hair brought about by changes in the relative humidity.
  • hair of the dog — an alcoholic drink taken as an antidote to a hangover
  • half wellington — a loose boot extending to just above the ankle and usually worn under the trousers.
  • halting problem — The problem of determining in advance whether a particular program or algorithm will terminate or run forever. The halting problem is the canonical example of a provably unsolvable problem. Obviously any attempt to answer the question by actually executing the algorithm or simulating each step of its execution will only give an answer if the algorithm under consideration does terminate, otherwise the algorithm attempting to answer the question will itself run forever. Some special cases of the halting problem are partially solvable given sufficient resources. For example, if it is possible to record the complete state of the execution of the algorithm at each step and the current state is ever identical to some previous state then the algorithm is in a loop. This might require an arbitrary amount of storage however. Alternatively, if there are at most N possible different states then the algorithm can run for at most N steps without looping. A program analysis called termination analysis attempts to answer this question for limited kinds of input algorithm.
  • hang one's head — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
  • hanging offence — a crime that is punishable by hanging
  • hapax legomenon — a word or phrase that appears only once in a manuscript, document, or particular area of literature.
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