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17-letter words containing a, r, t

  • 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.
  • manual typewriter — a keyboard machine, operated entirely by hand, for writing mechanically in characters resembling print
  • manufacturability — The condition of being manufacturable.
  • manufactured home — a prefabricated house, assembled in modular sections.
  • mare fecunditatis — (Sea of Fertility) a dark plain in the fourth quadrant and extending into the first quadrant of the face of the moon: about 160,000 sq. mi. (415,000 sq. km).
  • margaret hamilton — (person)   (born 1936-08-17) A computer scientist, systems engineer and business owner, credited with coining the term software engineering. Margaret Hamilton published over 130 papers, proceedings and reports about the 60 projects and six major programs in which she has been involved. In 1965 she became Director of Software Programming at MIT's Charles Stark Draper Laboratory and Director of the Software Engineering Division of the MIT Instrumentation Laboratory, which developed on-board flight software for the Apollo space program. At NASA, Hamilton pioneered the Apollo on-board guidance software that navigated to and landed on the Moon and formed the basis for software used in later missions. At the time, programming was a hands-on, engineering descipline; computer science and software engineering barely existed. Hamilton produced innovations in system design and software development, enterprise and process modelling, development paradigms, formal systems modelling languages, system-oriented objects for systems modelling and development, automated life-cycle environments, software reliability, software reuse, domain analysis, correctness by built-in language properties, open architecture techniques for robust systems, full life-cycle automation, quality assurance, seamless integration, error detection and recovery, man-machine interface systems, operating systems, end-to-end testing and life-cycle management. She developed concepts of asynchronous software, priority scheduling and Human-in-the-loop decision capability, which became the foundation for modern, ultra-reliable software design. The Apollo 11 moon landing would have aborted when spurious data threatened to overload the computer, but thanks to the innovative asynchronous, priority based scheduling, it eliminated the unnecessary processing and completed the landing successfully. In 1986, she founded Hamilton Technologies, Inc., developed around the Universal Systems Language and her systems and software design paradigm of Development Before the Fact (DBTF).
  • margaret of anjou — 1430–82, queen of Henry VI of England.
  • margaret thatcher — Margaret (Hilda) 1925–2013, British political leader: prime minister 1979–90.
  • marital relations — a euphemistic term for sexual intercourse between married partners
  • mark of the beast — the mark put on the forehead of those who worship the beast, the symbol of opposition to God.
  • market researcher — a person who carries out market research
  • marketing manager — a person who is in charge of a marketing department or campaign
  • marriage equality — the state of having the same rights and responsibilities of marriage as others, regardless of one's sexual orientation or gender identity.
  • martha's vineyard — an island off SE Massachusetts: summer resort. About 100 sq. mi. (259 sq. km).
  • 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.
  • massage therapist — sb who gives body rubs
  • master of science — a master's degree given usually in a specific branch of the natural sciences, mathematics, or technology.
  • materialistically — excessively concerned with physical comforts or the acquisition of wealth and material possessions, rather than with spiritual, intellectual, or cultural values.
  • materials science — the study of the characteristics and uses of various materials, as glass, plastics, and metals.
  • maternal instinct — motherly urge to protect and nurture
  • maternity benefit — government allowance
  • 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.
  • mean-spiritedness — the quality of being mean-spirited
  • mechanoelectrical — Describing the production of electricity by mechanical motion; especially in a transducer.
  • mediterranean sea — a sea surrounded by Africa, Europe, and Asia. 2400 miles (3865 km) long; 1,145,000 sq. mi. (2,965,550 sq. km); greatest known depth 14,436 feet (4400 meters).
  • megaelectron volt — million electron volts.
  • meiji restoration — revolution in Japanese life and government that occurred after the accession of Emperor Mutsuhito (1867), characterized by the downfall of the shogun and feudalism and the creation of a modern state
  • memetic algorithm — (algorithm)   A genetic algorithm or evolutionary algorithm which includes a non-genetic local search to improve genotypes. The term comes from the Richard Dawkin's term "meme". One big difference between memes and genes is that memes are processed and possibly improved by the people that hold them - something that cannot happen to genes. It is this advantage that the memetic algorithm has over simple genetic or evolutionary algorithms. These algorithms are useful in solving complex problems, such as the "Travelling Salesman Problem," which involves finding the shortest path through a large number of nodes, or in creating artificial life to test evolutionary theories. Memetic algorithms are one kind of metaheuristic. (07 July 1997)
  • memory management — (memory management, storage)   A collection of techniques for providing sufficient memory to one or more processes in a computer system, especially when the system does not have enough memory to satisfy all processes' requirements simultaneously. Techniques include swapping, paging and virtual memory. Memory management is usually performed mostly by a hardware memory management unit.
  • mensural notation — a system of musical notation of the 13th to the late 16th centuries, marked by the use of note symbols such as the longa and brevis, the absence of bar lines and ties, and the equivalence in value of one note to either two or three of the next smaller degree.
  • mental arithmetic — sums done in your head
  • mental impairment — (in England, according to the Mental Health Act 1983) a state of arrested or incomplete development of mind, which includes significant impairment of intelligence and social functioning and is associated with abnormally aggressive or seriously irresponsible conduct
  • mentally impaired — with reduced or weakened mental capacity
  • mercantile agency — commercial agency.
  • mercantile marine — the merchant navy
  • mercantile system — a system of political and economic policy, evolving with the modern national state and seeking to secure a nation's political and economic supremacy in its rivalry with other states. According to this system, money was regarded as a store of wealth, and the goal of a state was the accumulation of precious metals, by exporting the largest possible quantity of its products and importing as little as possible, thus establishing a favorable balance of trade.
  • merchant of death — a company, nation, or person that sells military arms on the international market, usually to the highest bidder and without scruple or regard for political ramifications.
  • merchant shipping — shipping which is involved in commerce (rather than defence, etc)
  • mercury barometer — a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.
  • mercy otis warren — Earl, 1891–1974, U.S. lawyer and political leader: chief justice of the U.S. 1953–69.
  • mesembryanthemums — Plural form of mesembryanthemum.
  • messier catalogue — a catalogue of 103 nonstellar objects, such as nebulae and galaxies, prepared in 1781–86. An object is referred to by its number in this catalogue, for example the Andromeda Galaxy is referred to as M31
  • metallofullerenes — Plural form of metallofullerene.
  • 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
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