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19-letter words containing a, t, o, r, n

  • henry the navigator — Prince, 1394–1460, prince of Portugal.
  • hepatic portal vein — a vein connecting two capillary networks in the liver
  • heptachlorobiphenyl — (organic compound) Either of twenty-four isomers of the polychlorinated biphenyl containing seven chlorine atoms.
  • hermitian conjugate — adjoint (def 2).
  • hexafluoroplatinate — (chemistry) The univalent anion PtF6- prepared by reacting platinum hexafluoride with certain metals or other elements.
  • horizontal drilling — Horizontal drilling is drilling in which the direction of the wellbore is more than 80 degrees from the vertical.
  • horizontal encoding — (processor)   An instruction set where each field (a bit or group of bits) in an instruction word controls some functional unit or gate directly, as opposed to vertical encoding where instruction fields are decoded (by hard-wired logic or microcode) to produce the control signals. Horizontal encoding allows all possible combinations of control signals (and therefore operations) to be expressed as instructions whereas vertical encoding uses a shorter instruction word but can only encode those combinations of operations built into the decoding logic. An instruction set may use a mixture of horizontal and vertical encoding within each instruction. Because an architecture using horizontal encoding typically requires more instruction word bits it is sometimes known as a very long instruction word (VLIW) architecture.
  • horizontal mobility — movement from one position to another within the same social level, as changing jobs without altering occupational status, or moving between social groups having the same social status.
  • human rights record — the facts that are known about the tendency of a country, regime, etc, to observe and protect human rights
  • huntington's chorea — a hereditary disease of the central nervous system characterized by brain deterioration and loss of control over voluntary movements, the symptoms usually appearing in the fourth decade of life.
  • hydropneumatization — utilization of air pressure in the housing of a water turbine to keep the level of water that has been used from rising to interfere with the rotor blades.
  • hydrostatic balance — a balance for finding the weight of an object submerged in water in order to determine the upthrust on it and thus determine its relative density
  • hyper-nationalistic — a person devoted to nationalism.
  • hyperbolic cosecant — a hyperbolic function that is the reciprocal of hyperbolic sine
  • hyperfocal distance — the distance, at a given f number, between a camera lens and the nearest point (hyperfocal point) having satisfactory definition when focused at infinity.
  • hypolipoproteinemia — An abnormally low level of lipoprotein in the blood.
  • hysterosalpingogram — An X-ray image taken during hysterosalpingography.
  • identification card — a card giving identifying data about a person, as full name, address, age, and color of hair and eyes, and often containing a photograph: for use as identification at a place of employment, school, club, etc.
  • identification mark — barcode or serial number
  • immigration control — a method or methods for regulating border laws and immigration
  • immigration officer — official administrating incoming foreigners
  • immunoprecipitation — the separation of an antigen from a solution by the formation of a large complex with its specific antibody.
  • impressionistically — In an impressionistic manner.
  • in commemoration of — in remembrance of
  • in consideration of — the act of considering; careful thought; meditation; deliberation: I will give your project full consideration.
  • in the tradition of — If you say that something or someone is in the tradition of a person or thing from the past, you mean that they have many features that remind you of that person or thing.
  • incomplete abortion — a miscarriage in which some fetal or placental tissue remains in the uterus.
  • incomplete fracture — a fracture extending partly across the bone.
  • incremental plotter — a device that plots graphs on paper from computer-generated instructions
  • indeterminate vowel — schwa.
  • index expurgatorius — a list of books now included in the Index Librorum Prohibitorum, forbidden to be read except from expurgated editions.
  • index of refraction — a number indicating the speed of light in a given medium as either the ratio of the speed of light in a vacuum to that in the given medium (absolute index of refraction) or the ratio of the speed of light in a specified medium to that in the given medium (relative index of refraction) Symbol: n.
  • induction hardening — a process in which the outer surface of a metal component is rapidly heated by means of induced eddy currents. After rapid cooling the resulting phase transformations produce a hard wear-resistant skin
  • inflationary spiral — Geometry. a plane curve generated by a point moving around a fixed point while constantly receding from or approaching it.
  • informal settlement — a squatter camp
  • information algebra — Theoretical formalism for DP, never resulted in a language. Language Structure Group of CODASYL, ca. 1962. Sammet 1969, 709.
  • information content — the amount of information in something
  • information highway — information superhighway
  • information officer — someone whose job is to give information to people
  • information science — the study of the nature, collection, and management of information and of its uses, especially involving computer storage and retrievals.
  • information service — a service which provides information
  • information warfare — the use of electronic communications and the internet to disrupt a country's telecommunications, power supply, transport system, etc
  • inorganic chemistry — the branch of chemistry dealing with inorganic compounds.
  • inprise corporation — Borland Software Corporation.
  • instant photography — photography using an instant camera.
  • instrumentalisation — (philosophy) The treatment of an idea as an instrument that functions as a guide to action.
  • instrumentalization — Alternative spelling of instrumentalisation.
  • intangible property — intellectual property, rights ownership
  • integration testing — (testing)   A type of testing in which software and/or hardware components are combined and tested to confirm that they interact according to their requirements. Integration testing can continue progressively until the entire system has been integrated.
  • inter-institutional — of, relating to, or established by institution.
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