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17-letter words containing r, e, l, c, t

  • laplace transform — a map of a function, as a signal, defined especially for positive real values, as time greater than zero, into another domain where the function is represented as a sum of exponentials.
  • law of reflection — the principle that when a ray of light, radar pulse, or the like, is reflected from a smooth surface the angle of reflection is equal to the angle of incidence, and the incident ray, the reflected ray, and the normal to the surface at the point of incidence all lie in the same plane.
  • law of refraction — the principle that for a ray, radar pulse, or the like, that is incident on the interface of two media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is equal to the ratio of the velocity of the ray in the first medium to the velocity in the second medium and the incident ray, refracted ray, and normal to the surface at the point of incidence all lie in the same plane.
  • lead acid battery — A lead acid battery is a 12-volt battery for passenger cars and light commercial vehicles consisting of lead-acid cells in series.
  • leading indicator — A leading indicator is an economic indicator that changes before a change in the economy, and that can be used to predict future economic or financial activity.
  • leg before wicket — a manner of dismissal on the grounds that a batsman has been struck on the leg by a bowled ball that otherwise would have hit the wicket
  • letter of comfort — comfort letter.
  • lettre de creance — letter of credit.
  • level compensator — an automatic gain control device used in the receivers of telegraphic circuits.
  • lexical insertion — the process in which actual morphemes of a language are substituted either for semantic material or for place-fillers in the course of a derivation of a sentence
  • liberal democrats — (in Britain) a political party with centrist policies; established in 1988 as the Social and Liberal Democrats when the Liberal Party merged with the Social Democratic Party; renamed Liberal Democrats in 1989
  • liberal education — an education based primarily on the liberal arts, emphasizing the development of intellectual abilities as opposed to the acquisition of professional skills.
  • liberty of speech — freedom of speech.
  • literacy campaign — a campaign designed to reduce illiteracy and promote literacy in a country, area, etc
  • literary executor — a person entrusted with the publishable works and other papers of a deceased author.
  • lithium carbonate — a colorless crystalline compound, Li 2 CO 3 , slightly soluble in water: used in ceramic and porcelain glazes, pharmaceuticals, and luminescent paints.
  • loch ness monster — a large aquatic animal resembling a serpent or a plesiosaurlike reptile, reported to have been seen in the waters of Loch Ness, Scotland, but not proved to exist.
  • locomotive driver — an engine driver
  • logical operation — Boolean operation.
  • lower paleolithic — See under Paleolithic.
  • macfarlane burnet — Sir (Frank) Macfarlane [muh k-fahr-luh n] /məkˈfɑr lən/ (Show IPA), 1899–1985, Australian physician: Nobel Prize in Physiology 1960.
  • macroevolutionary — Pertaining to, or as a result of macroevolution.
  • mains electricity — electricity supplied to a building through wires
  • manchester school — a school of economists in England in the first half of the 19th century, devoted to free trade and the repeal of the Corn Law, led by Richard Cobden and John Bright.
  • 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
  • mayflower compact — an agreement to establish a government, entered into by the Pilgrims in the cabin of the Mayflower on November 11, 1620.
  • mechanoelectrical — Describing the production of electricity by mechanical motion; especially in a transducer.
  • megaelectron volt — million electron volts.
  • 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)
  • mental arithmetic — sums done in your head
  • 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.
  • 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
  • microencapsulated — Encapsulated using microencapsulation.
  • microevolutionary — Of or pertaining to microevolution.
  • microfilm plotter — a type of incremental plotter that has a film rather than a paper output
  • micropaleontology — the branch of paleontology dealing with the study of microscopic fossils.
  • midterm elections — elections held halfway through the term of office of a president during which governors, etc, but not a president, are elected
  • mileage indicator — a device on a vehicle such as a car, plane, etc which indicates the number of miles travelled
  • military covenant — the supposed understanding that members of the armed forces and their families will be supported by the state in the event of injury or death in the course of duty
  • mineralocorticoid — Biochemistry. any of a group of corticosteroid hormones, synthesized by the adrenal cortex, that regulate the excretion or reabsorption of sodium and potassium by the kidneys, salivary glands, and sweat glands.
  • modulo arithmetic — modular arithmetic
  • molecular orbital — Physics, Chemistry. a wave function describing the state of a single electron in an atom (atomic orbital) or in a molecule (molecular orbital) the electron in that state.
  • monarch butterfly — a large, deep-orange butterfly, Danaus plexippus, having black and white markings, the larvae of which feed on the leaves of milkweed.
  • monte carlo rally — an annual car rally the destination of which is Monte Carlo
  • motorcycle engine — the engine of a motorcycle
  • motorcycle racing — sport: competing on motorcycles
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