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21-letter words containing l, a, c, t, r, y

  • magnetic permeability — permeability (def 2).
  • mechanical metallurgy — the branch of metallurgy dealing with the response of metals to applied forces.
  • mechanical solidarity — social cohesiveness that is based on shared activities, beliefs, and experiences and is characteristic of simple traditional societies.
  • multichannel analyser — an electronic instrument, such as a pulse height analyser, that splits an input waveform into a large number of channels in accordance with a particular parameter of the input
  • multilayer perceptron — A network composed of more than one layer of neurons, with some or all of the outputs of each layer connected to one or more of the inputs of another layer. The first layer is called the input layer, the last one is the output layer, and in between there may be one or more hidden layers.
  • myocardial infarction — heart attack. Abbreviation: MI.
  • nitrosylsulfuric acid — a clear, straw-colored, oily, corrosive liquid, HNO 5 S, used chiefly in the manufacture of dyes.
  • north atlantic treaty — the treaty (1949) signed by 12 countries, providing for the establishment of NATO.
  • olympic national park — a national park in NW Washington. 1323 sq. mi. (3425 sq. km).
  • orthogonal trajectory — the locus of a point whose path cuts each curve of a family of curves at right angles.
  • physical anthropology — the branch of anthropology dealing with the evolutionary changes in human anatomy and physiology, using mensurational and descriptive techniques.
  • picture quality scale — (graphics)   (PQS) A system for rating image quality based upon features of images that affect their perception by the human eye, rather than the traditional signal-to-noise ratio which examines differences for every single pixel.
  • piezoelectric crystal — a crystal, such as quartz, that produces a potential difference across its opposite faces when under mechanical stress
  • place of safety order — (in Britain) under the Children and Young Persons Act 1969, an order granted by a justice to a person or agency granting authority to detain a child or young person and take him or her to a place of safety for not more than 28 days, because of the child's actual or likely ill-treatment or neglect, etc
  • politically incorrect — not politically correct; potentially offensive to a particular group of people: politically incorrect jokes.
  • polygenic inheritance — the heredity of complex characters that are determined by a large number of genes, each one usually having a relatively small effect.
  • public address system — loudspeaker
  • public-address system — a combination of electronic devices that makes sound audible via loudspeakers to many people, as in an auditorium or out of doors.
  • pulmonary circulation — the circulation of blood from the heart to the lungs for oxygenation and back to the heart.
  • quadralay corporation — (company)   The developers of GWHIS. Telephone: +1 512-346-9199. Fax: +1 512-346-8990.
  • rectangular hyperbola — a hyperbola with perpendicular asymptotes
  • redevelopment company — a private corporation or a public agency that stimulates the improvement of land, as through a building project subject to certain designs and controls, by financing, selling, or leasing such real estate to interested buyers or lessees.
  • rocky mountain locust — a migratory locust, Melanoplus spretus, that occurs in North America, especially the Great Plains, where swarms cause great damage to crops and other vegetation.
  • royal victorian order — (in Britain) an order of chivalry founded by Queen Victoria in 1896, membership of which is conferred for special services to the sovereign
  • saint lawrence seaway — a series of channels, locks, and canals between Montreal and the mouth of Lake Ontario, a distance of 182 miles (293 km), enabling most deep-draft vessels to travel from the Atlantic Ocean, up the St. Lawrence River, to all the Great Lakes ports: developed jointly by the U.S. and Canada.
  • santa cruz water lily — a South American aquatic plant, Victoria cruziana, of the water lily family, having floating leaves from 2–5 feet (0.6–1.5 meters) and deep pink or red flowers.
  • scarlet monkey flower — any of various plants belonging to the genus Mimulus, of the figwort family, as M. cardinalis (scarlet monkey flower) having spotted flowers that resemble a face.
  • schlieren photography — a type of photography which records schlieren
  • scorched earth policy — a military practice of devastating the property and agriculture of an area before abandoning it to an advancing enemy.
  • scorched-earth policy — a military practice of devastating the property and agriculture of an area before abandoning it to an advancing enemy.
  • seventeen-year locust — a cicada, Magicicada septendecim, of the eastern U.S., having nymphs that live in the soil, usually emerging in great numbers after 17 years in the North or 13 years in the South.
  • social inquiry report — (in Britain) a report on a person and his or her circumstances, which may be required by a court before sentencing and is made by a probation officer or a social worker from a local authority social services department
  • socialist labor party — a U.S. political party, organized in 1874, advocating the peaceful introduction of socialism.
  • split-screen facility — a facility allowing different scenes to be shown on screen at the same time
  • statutory declaration — a declaration made under statutory authority before a justice of the peace or commissioner for oaths which may in certain cases be substituted for a statement on oath
  • structural psychology — psychology centering on the analysis of the structure or content of conscious mental states by introspective methods.
  • summary court-martial — a court-martial composed of one commissioned officer, authorized to try minor offenses against military law.
  • sunday school teacher — someone who teaches at a Sunday school
  • tartarian honeysuckle — an Asian honeysuckle, Lonicera tatarica, having fragrant, white to pink flowers.
  • the early renaissance — the period from about 1400 to 1500 in European, esp Italian, painting, sculpture, and architecture, when naturalistic styles and humanist theories were evolved from the study of classical sources, notably by Donatello, Masaccio, and Alberti
  • the household cavalry — a group of British soldiers on horseback who have the job of protecting the king or queen and their family
  • the royal scots greys — (formerly) a British cavalry regiment, the Second Dragoons
  • the yellow brick road — the road to success or happiness (in the film the Wizard of Oz the yellow brick road leads to Oz)
  • theoretical physicist — a scientist who studies theoretical physics
  • threshold wage policy — a policy whereby wages are increased in accordance with inflation
  • to play the race card — if someone plays the race card they bring up the issue of race in a discussion, perhaps for sympathy or to seek popularity by appealing to racist sentiment
  • trichloroacetaldehyde — chloral (def 1).
  • uncertainty principle — the principle of quantum mechanics, formulated by Heisenberg, that the accurate measurement of one of two related, observable quantities, as position and momentum or energy and time, produces uncertainties in the measurement of the other, such that the product of the uncertainties of both quantities is equal to or greater than h/ 2 π, where h equals Planck's constant.
  • university of iceland — (body, education)   The Home of Fjolnir.
  • vertically challenged — short in stature.
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