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

  • astroengineering — (scifi) The construction of megastructures in space by technologically advanced beings.
  • astronomer royal — an honorary title awarded to an eminent British astronomer: until 1972, the Astronomer Royal was also director of the Royal Greenwich Observatory
  • at one's leisure — when one has free time
  • atlantic croaker — a person or thing that croaks.
  • atrioventricular — of, relating to, or affecting both the atria and the ventricles of the heart
  • attendance order — (in Britain) an order issued by a court requiring a young offender to attend a specified place at specified times in order to carry out unpaid work, usually as an alternative to being fined
  • attorney general — A country's Attorney General is its chief law officer, who advises its government or ruler.
  • attorney-in-fact — a person authorized by power of attorney to act on the authorizer's behalf outside a court of law.
  • attributive noun — a noun that occurs before and modifies another noun, as toy in toy store or tour in tour group.
  • austro-hungarian — of or relating to the Dual Monarchy of Austria-Hungary (1867–1918)
  • authoritarianism — Authoritarianism is the state of being authoritarian or the belief that people with power, especially the State, have the right to control other people's actions.
  • autoethnographic — Using ethnographic techniques to describe one's own life, or events in which one is a participant.
  • autofluorescence — (biology, microscopy) Self-induced fluorescence.
  • automatrix, inc. — (company)   The company which produced CAM-PC. Address: Ballston Spa, NY, USA.
  • autotransformers — Plural form of autotransformer.
  • autotransfusions — Plural form of autotransfusion.
  • aversion therapy — a method of suppressing an undesirable habit, such as excessive smoking, by causing the subject to associate an unpleasant effect, such as an electric shock or nausea, with the habit
  • back-propagation — (Or "backpropagation") A learning algorithm for modifying a feed-forward neural network which minimises a continuous "error function" or "objective function." Back-propagation is a "gradient descent" method of training in that it uses gradient information to modify the network weights to decrease the value of the error function on subsequent tests of the inputs. Other gradient-based methods from numerical analysis can be used to train networks more efficiently. Back-propagation makes use of a mathematical trick when the network is simulated on a digital computer, yielding in just two traversals of the network (once forward, and once back) both the difference between the desired and actual output, and the derivatives of this difference with respect to the connection weights.
  • bacterioplankton — (biology) The bacterial component of marine plankton.
  • badminton racket — the type of racket used in games of badminton
  • balance of trade — A country's balance of trade is the difference in value, over a period of time, between the goods it imports and the goods it exports.
  • balloon catheter — a type of catheter with a tiny, inflatable balloon at the tip, used in various surgical procedures
  • balloon mortgage — A balloon mortgage is a mortgage on which the repayments are relatively small until the large final payment.
  • baltimore canyon — a submarine valley cut into the continental shelf and slope seaward of Chesapeake Bay.
  • bankruptcy court — a section of the United States federal court which specializes in the handling of bankruptcy cases
  • bankruptcy order — a court order appointing a receiver to manage the property of a debtor or bankrupt
  • barium carbonate — a white, poisonous, water-insoluble powder, BaCO 3 , used chiefly in the manufacture of rodenticides, paints, and dyes.
  • baron tweedsmuir — the title of Scottish novelist John Buchan
  • bastard mahogany — an Australian tree, Eucalyptus botryoides, of the myrtle family, having lance-shaped leaves and furrowed bark.
  • bastard pointing — an imitation of tuck pointing, having a fillet made from the mortar of the joint.
  • batch processing — manufacturing products or treating materials in batches, by passing the output of one process to subsequent processes
  • batch production — production of goods in batches, rather than continuously
  • bathroom cabinet — a wall-mounted cabinet in a bathroom, typically with a mirror front and used for the storage of medicines and toiletries
  • batlle y ordonez — José [haw-se] /hɔˈsɛ/ (Show IPA), 1856–1929, Uruguayan statesman: president of Uruguay 1903–07, 1911–15.
  • bayonet practice — drill in the use of a bayonet
  • be on the market — to be offered for sale
  • behavior pattern — a recurrent way of acting by an individual or group toward a given object or in a given situation.
  • beta abstraction — [lambda-calculus] The conversion of an expression to an application of a lambda abstraction to an argument expression. Some subterm of the original expression becomes the argument of the abstraction and the rest becomes its body. E.g. 4+1 --> (\ x . x+1) 4 The opposite of beta abstraction is beta reduction. These are the two kinds of beta conversion.
  • bidirectionality — capable of reacting or functioning in two, usually opposite, directions.
  • binary operation — a mathematical operation in which two elements are combined to yield a single result: Addition and multiplication are binary operations on the set of real numbers.
  • binomial theorem — a mathematical theorem that gives the expansion of any binomial raised to a positive integral power, n. It contains n + 1 terms: (x + a)n = xn + nxn–1a + [n(n–1)/2] xn–2a2 +…+ (nk) xn–kak + … + an, where (nk) = n!/(n–k)!k!, the number of combinations of k items selected from n
  • biodeterioration — biodegradation.
  • bioenvironmental — pertaining to the environment of living organisms: Bioenvironmental engineers seek to reduce air and water pollution.
  • biofortification — the process of breeding staple crops to have higher levels of essential nutrients, either through selective breeding or genetic modification: iron biofortification of rice; biofortification of wheat with zinc.
  • birthday honours — (in Britain) honorary titles conferred on the official birthday of the sovereign
  • bitterroot range — range of the Rocky Mountains, along the Ida.-Mont. border: highest peak, c. 11,000 ft (3,353 m)
  • blink comparator — an optical instrument used to detect small differences in two photographs of the same field or object by viewing them alternately, switching rapidly from one to the other.
  • board and batten — a siding consisting of wide boards or of sheets of plywood set vertically with butt joints covered by battens.
  • boolean-operator — any operation in which each of the operands and the result take one of two values.
  • boston cream pie — a cake of two layers with icing and a creamy filling
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