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18-letter words containing n, i, a, c

  • furnishing fabrics — fabrics used to make and cover furniture
  • galactic longitude — the angular distance in degrees measured eastward in the galactic plane from a radius drawn from the earth as center to the constellation Sagittarius.
  • 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.
  • garbage collection — (programming)   (GC) The process by which dynamically allocated storage is reclaimed during the execution of a program. The term usually refers to automatic periodic storage reclamation by the garbage collector (part of the run-time system), as opposed to explicit code to free specific blocks of memory. Automatic garbage collection is usually triggered during memory allocation when the amount free memory falls below some threshold or after a certain number of allocations. Normal execution is suspended and the garbage collector is run. There are many variations on this basic scheme. Languages like Lisp represent expressions as graphs built from cells which contain pointers and data. These languages use automatic dynamic storage allocation to build expressions. During the evaluation of an expression it is necessary to reclaim space which is used by subexpressions but which is no longer pointed to by anything. This reclaimed memory is returned to the free memory pool for subsequent reallocation. Without garbage collection the program's memory requirements would increase monotonically throughout execution, possibly exceeding system limits on virtual memory size. The three main methods are mark-sweep garbage collection, reference counting and copying garbage collection. See also the AI koan about garbage collection.
  • gene amplification — an increase in the frequency of replication of a DNA segment.
  • general confession — a prayer confessing sins
  • general precession — the precession that results from both lunisolar precession and planetary precession; precession of the equinoxes.
  • genetic algorithms — genetic algorithm
  • geneva conventions — one of a series of international agreements, first made in Geneva, Switzerland, in 1864, establishing rules for the humane treatment of prisoners of war and of the sick, the wounded, and the dead in battle.
  • 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.
  • german east africa — a former German territory in E Africa, the area now comprised of continental Tanzania and the independent republics of Rwanda and Burundi.
  • giant peacock moth — the largest European moth, an emperor, Saturnia pyri, reaching 15 cm (6 in.) in wingspan. It is mottled brown with a prominent ocellus on each wing and being night-flying can be mistaken for a bat
  • glycosaminoglycans — Plural form of glycosaminoglycan.
  • goya (y lucientes) — Fran‧ˈcis‧co Jo‧ˈsé‧ de (fʀɑnˈθiskɔhɔˈsɛ ðɛ) ; fränt hēsˈk^ōh^ōseˈ the) 1746-1828; Sp. painter
  • graduated cylinder — a narrow, cylindrical container marked with horizontal lines to represent units of measurement and used to precisely measure the volume of liquids.
  • grammatical gender — gender based on arbitrary assignment, without regard to the referent of a noun, as in French le livre (masculine), “the book,” and German das Mädchen (neuter), “the girl.”.
  • grand council fire — a formal gathering of camp fire members requiring a minimum attendance of three troops.
  • gravity escapement — an escapement, used especially in large outdoor clocks, in which the impulse is given to the pendulum by means of a weight falling through a certain distance.
  • great expectations — a novel (1861) by Charles Dickens.
  • gregorian calendar — the reformed Julian calendar now in use, according to which the ordinary year consists of 365 days, and a leap year of 366 days occurs in every year whose number is exactly divisible by 4 except centenary years whose numbers are not exactly divisible by 400, as 1700, 1800, and 1900.
  • guidance counselor — advisor in schools
  • gulf of california — an arm of the Pacific Ocean, between Sonora and Lower California
  • gulf saint vincent — a shallow inlet of SE South Australia, to the east of the Yorke Peninsula: salt industry
  • gyromagnetic ratio — the ratio of the magnetic moment of a rotating charged particle to its angular momentum.
  • handkerchief table — corner table.
  • handyman's special — fixer-upper.
  • heart-lung machine — a device through which blood is shunted temporarily for oxygenation during surgery, while the heart or a lung is being repaired.
  • heat of combustion — the heat evolved when one mole of a substance is burnt in oxygen at constant volume
  • hebdomadal council — the governing council or senate of Oxford University
  • hegelian dialectic — an interpretive method, originally used to relate specific entities or events to the absolute idea, in which some assertible proposition (thesis) is necessarily opposed by an equally assertible and apparently contradictory proposition (antithesis) the mutual contradiction being reconciled on a higher level of truth by a third proposition (synthesis)
  • heimlich manoeuvre — a technique in first aid to dislodge a foreign body in a person's windpipe by applying sudden upward pressure on the upper abdomen
  • helicopter station — a place where helicopters are kept in readiness for use
  • heptadecanoic acid — a colourless crystalline water-insoluble carboxylic acid used in organic synthesis. Formula: CH3(CH2)15COOH
  • hexachlorobiphenyl — (organic compound) Either of forty-two isomers of the polychlorinated biphenyl containing six chlorine atoms.
  • highbush cranberry — a shrub, Viburnum trilobum, of northern North America, having broad clusters of white flowers and edible scarlet berries.
  • histamine headache — cluster headache.
  • historical fiction — the genre of literature, film, etc., comprising narratives that take place in the past and are characterized chiefly by an imaginative reconstruction of historical events and personages.
  • historical present — the present tense used in narrating a past event as if happening at the time of narration.
  • honeysuckle family — the plant family Caprifoliaceae, typified by shrubs and woody vines having opposite leaves, clusters of usually flaring, narrow, tubular flowers, and various types of fruit, and including the elder, honeysuckle, snowberry, twinflower, and viburnum.
  • hot-water cylinder — a vertical cylindrical tank for storing hot water, esp an insulated one made of copper used in a domestic hot-water system
  • hydrocinnamic acid — a white crystalline compound, C 9 H 10 O 2 , with a floral odor, used in perfumes and flavoring.
  • hyper-intellectual — appealing to or engaging the intellect: intellectual pursuits.
  • hyperconcentration — the act of concentrating; the state of being concentrated.
  • hypernationalistic — a person devoted to nationalism.
  • hypochromic anemia — an anemia characterized by an abnormally low concentration of hemoglobin in the red blood cells, often due to iron deficiency.
  • hysterical reasons — (Or "hysterical raisins") A variant on the stock phrase "for historical reasons", indicating specifically that something must be done in some stupid way for backward compatibility, and moreover that the feature it must be compatible with was the result of a bad design in the first place. "All IBM PC video adaptors have to support MDA text mode for hysterical reasons." Compare bug-for-bug compatible.
  • ideas of reference — a schizophrenic symptom in which the patient thinks that things completely disconnected from him are influencing him or conveying messages to him
  • identification tag — either of two oblong metal tags, issued to armed forces personnel, on which are impressed the serial number, name, etc., of the person to whom it is issued, and carried on or about the person at all times.
  • immunohistological — the microscopic study of tissues with the aid of antibodies that bind to tissue components and reveal their presence.
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