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17-letter words containing t, o, p, r

  • logical operation — Boolean operation.
  • lower paleolithic — See under Paleolithic.
  • lumpenproletariat — the lowest level of the proletariat comprising unskilled workers, vagrants, and criminals and characterized by a lack of class identification and solidarity.
  • manhattan project — U.S. History. the unofficial designation for the U.S. War Department's secret program, organized in 1942, to explore the isolation of radioactive isotopes and the production of an atomic bomb: initial research was conducted at Columbia University in Manhattan.
  • mass spectrograph — a mass spectroscope for recording a mass spectrum on a photographic plate.
  • mass spectrometer — a device for identifying the kinds of particles present in a given substance: the particles are ionized and beamed through an electromagnetic field and the manner in which they are deflected is indicative of their mass and, thus, their identity.
  • mass spectroscope — an instrument used to determine the masses of small, electrically charged particles.
  • mass spectroscopy — an instrument used to determine the masses of small, electrically charged particles.
  • matter of opinion — a point open to question; a debatable statement
  • mayflower compact — an agreement to establish a government, entered into by the Pilgrims in the cabin of the Mayflower on November 11, 1620.
  • mean proportional — (between two numbers a and b) a number x for which a/x = x/b : The number 3 is a mean proportional between 1 and 9.
  • memory protection — (memory management)   A system to prevent one process corrupting the memory (or other resources) of any other, including the operating system. Memory protection usually relies on a combination of hardware (a memory management unit) and software to allocate memory to processes and handle exceptions. The effectiveness of memory protection varies from one operating system to another. In most versions of Unix it is almost impossible to corrupt another process' memory, except in some archaic implementations and Lunix (not Linux!). Under Microsoft Windows (version? hardware?) any 16 bit application(?) can circumvent the memory protection, often leading to one or more GPFs. Currently (April 1996) neither Microsoft Windows 3.1, Windows 95, nor Mac OS offer memory protection. Windows NT has it, and Mac OS System 8 will offer a form of memory protection.
  • metalloproteinase — (enzyme) Any of several proteinases that have a metal atom (often zinc) at their active centre.
  • metaperiodic acid — the crystalline compound HIO4, an oxyacid of iodine
  • methylidyne group — the trivalent group ≡CH.
  • microencapsulated — Encapsulated using microencapsulation.
  • microfilm plotter — a type of incremental plotter that has a film rather than a paper output
  • micromanipulation — the technique of performing mechanical operations under high magnification through the use of specialized tools.
  • micromanipulators — Plural form of micromanipulator.
  • micropaleontology — the branch of paleontology dealing with the study of microscopic fossils.
  • microphanerophyte — any shrub or tree having a height of 2 to 8 metres
  • microphotographic — Relating to microphotography.
  • microreproduction — a photographic image too small to be read by the unaided eye.
  • microsoft project — (product)   A Microsoft Windows program offering various project management tools.
  • misappropriations — Plural form of misappropriation.
  • misinterpretation — An instance of misinterpreting.
  • misrepresentation — to represent incorrectly, improperly, or falsely.
  • mitre corporation — (body)   A US federally funded R&D center, spun off in 1958 from the MIT Lincoln Laboratory (also an FFRDC). MITRE is a non-profit corporation chartered to do R&D in the public interest. MITRE were responsible for system engineering and implementation oversight of SAGE. MITRE does not stand for MIT Research and Engineering, though it could have.
  • mode of transport — means of travel
  • modern pentathlon — an athletic contest consisting of five different events: horse riding with jumps, fencing with electric épée, freestyle swimming, pistol shooting, and cross-country running
  • mom and pop store — a small retail business, typically family-operated
  • mother spleenwort — a fern, Asplenium bulbiferum, of tropical Africa and Australasia, the fronds often bearing bulbils that sprout into new plants while still attached, grown as an ornamental.
  • mount kirkpatrick — a mountain in Antarctica, in S Victoria Land in the Queen Alexandra Range. Height: 4528 m (14 856 ft)
  • mount robson park — a national park in the Rocky Mountains of E British Columbia, Canada.
  • multiple cropping — the use of the same field for two or more crops, whether of the same or of different kinds, successively during a single year.
  • multiple exposure — the filming of more than one scene in a single frame
  • neath port talbot — a county borough in S Wales, created from part of West Glamorgan in 1996. Administrative centre: Port Talbot. Pop: 135 300 (2003 est). Area: 439 sq km (169 sq miles)
  • negative polarity — the grammatical character of a word or phrase, such as ever or any, that may normally be used only in a semantically or syntactically negative or interrogative context
  • nephelometrically — By means of nephelometry.
  • neuropathological — (medicine) Of, pertaining to, or arising from neuropathology, the pathology of nerve tissue.
  • neurophysiologist — the branch of physiology dealing with the functions of the nervous system.
  • neuropsychiatrist — A medical doctor specializing in neuropsychiatry; a medical doctor dealing with disorders that have both neurological and psychiatric features.
  • neuropsychologist — A neurologist or psychologist whose speciality is neuropsychology.
  • nitrogen peroxide — the equilibrium mixture of nitrogen dioxide and dinitrogen tetroxide
  • non-profit-making — A non-profit-making organization or charity is not run with the intention of making a profit.
  • non-proliferation — Non-proliferation is the limiting of the production and spread of something such as nuclear or chemical weapons.
  • non-reciprocating — to give, feel, etc., in return.
  • non-stereotypical — a process, now often replaced by more advanced methods, for making metal printing plates by taking a mold of composed type or the like in papier-mâché or other material and then taking from this mold a cast in type metal.
  • non-thermoplastic — soft and pliable when heated, as some plastics, without any change of the inherent properties.
  • nonimpact printer — a printer that creates images without mechanically impacting the page, as an ink-jet or laser printer.
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