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20-letter words containing ra

  • great dividing range — a mountain range extending along the E coast of Australia: vast watershed region. 100 to 200 miles (160–320 km) wide.
  • great-great-grandson — the grandson of a grandchild
  • group life insurance — a form of life insurance available to members of a group, typically employees of a company, under a master policy.
  • hierarchical routing — The complex problem of routing on large networks can be simplified by breaking a network into a hierarchy of smaller networks, where each level is responsible for its own routing. The Internet has, basically, three levels: the backbones, the mid-levels, and the stub networks. The backbones know how to route between the mid-levels, the mid-levels know how to route between the sites, and each site (being an autonomous system) knows how to route internally. See also Exterior Gateway Protocol, Interior Gateway Protocol, transit network.
  • hindu-arabic numeral — Arabic numeral.
  • horizontal scan rate — (hardware)   (HSR) The measure of how many scan lines of pixels a monitor can display in one second, expressed in kHz (generally somewhere between 20 and 100 kHz). The HSR is controlled by the horizontal sync signal generated by the video controller, but is limited by the speed with which the monitor can scan the electron beam horizontally across the screen and then return it to the beginning of the next line.
  • hungarian bromegrass — a pasture grass, Bromus inermis, native to Europe, having smooth blades.
  • hydraulic fracturing — a process in which fractures in rocks below the earth's surface are opened and widened by injecting chemicals and liquids at high pressure: used especially to extract natural gas or oil.
  • hydraulic suspension — a system of motor-vehicle suspension using hydraulic members, often with hydraulic compensation between front and rear systems (hydroelastic suspension)
  • hyperadrenocorticism — Cushing's syndrome.
  • implicit parallelism — (parallel)   A feature of a programming language for a parallel processing system which decides automatically which parts to run in parallel. The best way of providing implicit parallelism is still (1995) an active research topic. The problem is to generate the right number of parallel tasks of the right size (or "granularity"). Too many tasks and the system gets bogged down in house-keeping, or memory for waiting tasks runs out, too few tasks and processors are left idle. The best performance is usually achieved with explicit parallelism where the programmer can annotate his program to indicate which parts should be executed as independent parallel tasks.
  • imported currantworm — the larva of any of several insects, as a sawfly, Nematus ribesii (imported currantworm) which infests and feeds on the leaves and fruit of currants.
  • in flagrante delicto — Law. in the very act of committing the offense.
  • incorporated company — a legally constituted company
  • industrial democracy — control of an organization by the people who work for it, esp by workers holding positions on its board of directors
  • industrial insurance — industrial life insurance.
  • infiltration gallery — a conduit, built in permeable earth, for collecting ground water.
  • infrared photography — photography using film with an emulsion that is sensitive to infrared light, enabling it to be used in misty weather, in darkened interiors, or at night. It has applications in aerial surveys, the detection of forgeries, etc
  • initial program load — (operating system)   (IPL) The procedure used to (re-)start a computer system by copying the operating system kernel into main memory and running it. Part of the boot sequence.
  • insulin-coma therapy — a former treatment for mental illness, especially schizophrenia, employing insulin-induced hypoglycemia as a method for producing convulsive seizures.
  • integration by parts — Mathematics. a method of evaluating an integral by use of the formula, ∫udv = uv − ∫vdu.
  • integrity constraint — (database)   A constraint (rule) that must remain true for a database to preserve data integrity. Integrity constraints are specified at database creation time and enforced by the database management system. Examples from a genealogical database would be that every individual must be their parent's child or that they can have no more than two natural parents.
  • internal respiration — the exchange of oxygen and carbon dioxide between the blood or lymph and the body cells
  • international orange — a shade of bright orange, highly visible at a great distance and in murky weather, used to color aircraft, airport towers and hangars, boats, etc., for safety or rescue purposes.
  • into/in cold storage — If you put an idea or plan into cold storage or in cold storage, you delay it for a while rather than acting on it as you originally intended.
  • intravenous drug use — the injection of drugs intravenously
  • isochronous transfer — isochronous
  • isosorbide dinitrate — a coronary vasodilator, C 6 H 8 N 2 O 8 , used in the prophylaxis and treatment of angina.
  • jerez de la frontera — a town in SW Spain: famous for the making of sherry. Pop: 191 002 (2003 est)
  • joint life insurance — life insurance covering two or more persons, the benefits of which are paid after the first person dies.
  • keep a straight face — look serious, avoid smiling
  • keratoconjunctivitis — inflammation of the cornea and conjunctiva.
  • kick over the traces — either of the two straps, ropes, or chains by which a carriage, wagon, or the like is drawn by a harnessed horse or other draft animal.
  • knock-down, drag-out — characterized by great violence, harshness, animosity, etc.
  • laboratory assistant — laboratory technician, lab assistant
  • laboratory diagnosis — scientific analysis of a disease
  • laboratory equipment — apparatus for scientific research and experiments
  • law of contradiction — the law that a proposition cannot be both true and false or that a thing cannot both have and not have a given property.
  • linear extrapolation — Statistics, Mathematics. extrapolation using a linear equation to estimate the value of a variable or function outside the tabulated or observed range.
  • linguistic geography — dialect geography.
  • literate programming — (programming, text)   Combining the use of a text formatting language such as TeX and a conventional programming language so as to maintain documentation and source code together. Literate programming may use the inverse comment convention.
  • longitudinal framing — a system for framing steel vessels in which light, closely spaced, longitudinal frames are connected by heavy, widely spaced transverse frames with deep webs.
  • lymphogranulomatosis — widespread infectious granuloma of the lymphatic system.
  • macular degeneration — degeneration of the central portion of the retina, resulting in a loss of sharp vision.
  • magnetoencephalogram — a record of the magnetic field of the brain. Abbreviation: MEG.
  • mail transport agent — Message Transfer Agent
  • maintenance contract — a formal agreement between two parties which states that one party will keep a building, vehicle, machine, etc, belonging to the other party in good condition by regularly checking it and repairing it when necessary
  • mannitol hexanitrate — a colorless, crystalline, water-insoluble, explosive solid, C 6 H 8 N 6 O 1 8 , used as a fulminating agent in percussion caps and in the treatment of hypertension and coronary insufficiency.
  • mare tranquillitatis — (Sea of Tranquillity) a dark plain in the first quadrant of the face of the moon: about 110,000 sq. mi. (285,000 sq. km).
  • medical practitioner — doctor
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