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15-letter words containing r, i, a, c

  • general officer — an officer ranking above colonel.
  • general science — basic science taught as a school subject
  • geodemographics — the study and grouping of the people in a geographical area according to socioeconomic criteria, esp for market research
  • geometric ratio — the ratio of consecutive terms in a geometric progression.
  • geostrophically — By means of, or in terms of, geostrophy.
  • giant schnauzer — one of a German breed of large working dogs, resembling a larger and more powerful version of the standard schnauzer, having a pepper-and-salt or pure black, wiry coat, bushy eyebrows and beard, and a docked tail set moderately high, originally developed as a cattle herder but now often used in police work.
  • gila woodpecker — a dull-colored woodpecker, Melanerpes uropygialis, of the southwestern U.S. and Mexico.
  • glass harmonica — a musical instrument composed of a set of graduated, revolving glass bowls, the rims of which are moistened and set in vibration by friction from the fingertips.
  • globe artichoke — artichoke (defs 1, 2).
  • glossographical — relating to glossography
  • glucuronic acid — Biochemistry. an acid, C 6 H 10 O 7 , formed by the oxidation of glucose, found combined with other products of metabolism in the blood and urine.
  • glycuronic acid — glucuronic acid.
  • goal difference — the number of goals scored by a team minus the number of goals it has conceded
  • governing class — the social class that holds the power in a country
  • grain itch mite — a mite, Pyemotes ventricosus, that often occurs in straw and normally feeds on the larvae of insects but opportunistically bites humans, causing an itching dermatitis.
  • grammaticalness — (of language) The state or attribute of obeying the rules of grammar; grammatical correctness.
  • gramophonically — in a gramophonic manner
  • grand staircase — a large and impressive staircase
  • granitification — the process or action of forming into granite
  • 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 display — the way in which line drawings and text are displayed
  • 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.
  • graphologically — In terms of or by means of graphology.
  • grappier cement — a by-product of the calcination of hydraulic lime, having similar properties and made from ground, unslaked lumps.
  • gravimetrically — (chemistry) Using a gravimetric method.
  • graviperception — the perception of gravity by plants
  • great recession — the protracted worldwide economic recession following the financial crisis of 2007–08
  • 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.
  • gregorian chant — the plain song or cantus firmus used in the ritual of the Roman Catholic Church.
  • 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.
  • 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).
  • haemoglobinuric — relating to the presence of haemoglobin in the urine
  • hair specialist — an expert in the treatment and care of human hair
  • 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
  • hard mint candy — a hardened mint-flavoured sweet
  • hardship clause — a clause in a contract which covers unforeseen events that would make it more difficult for one party to complete the contract, and in which case offers alternative terms
  • harmonic motion — periodic motion consisting of one or more vibratory motions that are symmetric about a region of equilibrium, as the motion of a vibrating string of a musical instrument.
  • harmonic series — a series in which the reciprocals of the terms form an arithmetic progression.
  • haversian canal — a microscopic channel in bone, through which a blood vessel runs.
  • hay conditioner — either of two machines, one designed to crush stems of hay, the other to break and bend them, in order to cause more rapid and even drying
  • heart condition — cardiac disorder
  • heart-searching — a thorough examination of one's feelings and motives; a self-examination of one's conscience.
  • heliacal rising — rising of a celestial object at approximately the same time as the rising of the sun
  • heliometrically — By means of, or in terms of, heliometry.
  • 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.
  • hemicraniectomy — (surgery) The surgical removal of half of the cranium to enable brain surgery; hemicraniotomy.
  • hemochromatosis — a rare metabolic disorder characterized by a bronzed skin, cirrhosis, and severe diabetes, caused by the deposit in tissue, especially of the liver and pancreas, of hemosiderin and other pigments containing iron.
  • henry cavendish — Henry, 1731–1810, English chemist and physicist.
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