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15-letter words containing a, n, i, g, h

  • 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.
  • graphic granite — a pegmatite that has crystals of gray quartz imbedded in white or pink microcline in such a manner that they resemble cuneiform writing.
  • great sanhedrin — Sanhedrin (def 1).
  • great-sanhedrin — Also called Great Sanhedrin. the highest council of the ancient Jews, consisting of 71 members, and exercising authority from about the 2nd century b.c.
  • gregorian chant — the plain song or cantus firmus used in the ritual of the Roman Catholic Church.
  • 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.
  • gulf of bothnia — an arm of the Baltic Sea, extending north between Sweden and Finland
  • gynandromorphic — (of an organism) Having male and female characteristics.
  • 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).
  • haemagglutinate — to cause the clumping of red blood cells in (a blood sample)
  • haemoglobinuria — the presence of haemoglobin in the urine
  • haemoglobinuric — relating to the presence of haemoglobin in the urine
  • 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 in (there) — to hold steadfast; persevere
  • hang seng index — an index of share prices based on an average of 33 stocks quoted on the Hong Kong Stock Exchange
  • hanging glacier — a glacier situated on a shelf above a valley or another glacier; it may be joined to the lower level by an icefall or separate from it
  • hanging offence — a crime that is punishable by hanging
  • hard of hearing — partially deaf
  • have nothing on — be naked
  • hawaiian guitar — a six-to-eight-string electric guitar, fretted with a piece of metal or bone to produce a whining, glissando sound, played in a horizontal position usually resting on the performer's knees or on a stand, and much used by country music performers.
  • hawaiian pidgin — an English-based creole widely spoken in Hawaii.
  • hearing ear dog — a dog that has been trained to alert a hearing-impaired person to sounds, as a telephone ringing or dangerous noises.
  • hearing-ear dog — a dog that has been trained to alert a hearing-impaired person to sounds, as a telephone ringing or dangerous noises.
  • heart-searching — a thorough examination of one's feelings and motives; a self-examination of one's conscience.
  • heartbreakingly — causing intense anguish or sorrow.
  • heat-conducting — able to conduct heat or whose function is to conduct heat
  • heating element — a coil or other arrangement of wire in which heat is produced by an electric current
  • heave-off hinge — loose-joint hinge.
  • heavy breathing — stertorous breathing or breathing done with difficulty
  • hedonic damages — compensation based on what the victim of a crime might have earned in the future
  • heliacal rising — rising of a celestial object at approximately the same time as the rising of the sun
  • hemangiosarcoma — A fast-growing, highly invasive variety of cancer, a sarcoma arising from the lining of blood vessels, occurring almost exclusively in dogs and rarely in cats.
  • heritage centre — a museum that houses exhibits describing the culture and history of a particular place and its inhabitants
  • high and mighty — self-important, arrogant
  • high-and-mighty — haughty; arrogant.
  • high-angle shot — a shot taken from a camera positioned above the action
  • high-handedness — condescending or presumptuous; overbearing; arbitrary: He has a highhanded manner.
  • highland cattle — a breed of cattle with shaggy hair, usually reddish-brown in colour, and long horns
  • holding company — a company that controls other companies through stock ownership but that usually does not engage directly in their productive operations (distinguished from parent company).
  • holding furnace — a small furnace for holding molten metal produced in a larger melting furnace at a desired temperature for casting.
  • holding paddock — a paddock in which cattle or sheep are kept temporarily, as before shearing, etc
  • holding pattern — a traffic pattern for aircraft at a specified location (holding point) where they are ordered to remain until permitted to land or proceed.
  • holiday feeling — the positive feeling people experience while on holiday and during holiday periods such as the Christmas period
  • homing guidance — a method of missile guidance in which internal equipment enables it to steer itself onto the target, as by sensing the target's heat radiation
  • honey tangerine — a citrus fruit with a deep-orange pulp, formed by crossing a tangerine and a sweet orange hybrid; Murcott
  • hot-dip coating — the process of coating sheets of iron or steel with molten zinc.
  • hovering accent — indeterminacy as to which of two consecutive syllables in a line of verse bears the metrical stress, as in any of the first three feet of Slow, slow, / fresh fount, / keep time / with my / salt tears.
  • hung parliament — a parliament that does not have a party with a working majority
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