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16-letter words containing a, c, r, o, i

  • australopithecus — an extinct genus of small-brained,large-toothed bipedal hominids that lived in Africa between one and four million years ago.
  • autobiographical — An autobiographical piece of writing relates to events in the life of the person who has written it.
  • autoethnographic — Using ethnographic techniques to describe one's own life, or events in which one is a participant.
  • automatic camera — a camera in which the lens aperture or the shutter speed or both are automatically adjusted to the prevailing conditions
  • automatic redial — a telephone service feature whereby the last number dialed is automatically called again, either after a specified time or when activated by the user.
  • automatic repeat — a key on the keyboard of a typewriter, computer, etc, which, when depressed continuously, produces the character repeatedly until the key is released
  • automatrix, inc. — (company)   The company which produced CAM-PC. Address: Ballston Spa, NY, USA.
  • autoradiographic — Of or pertaining to an autoradiograph, a radiographic image produced by the decay of a radioactive substance.
  • autostereoscopic — Of or pertaining to autostereoscopy.
  • auxiliary police — a part-time reserve attached to a regular police force
  • azodicarbonamide — (chemistry) An organic chemical, a yellow to orange red, odorless, crystalline powder, used in food industry as a food additive, a flour bleaching agent and improving agent and in foaming plastics.
  • 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.
  • background music — music of any kind that is played while some other activity is going on, so that people do not actively attend to it
  • background noise — any type of noise that is not the sound that you are specifically listening to or monitoring
  • backward-looking — If you describe someone or something as backward-looking, you disapprove of their attitudes, ideas, or actions because they are based on old-fashioned opinions or methods.
  • bacterioplankton — (biology) The bacterial component of marine plankton.
  • badminton racket — the type of racket used in games of badminton
  • ballroom dancing — Ballroom dancing is a type of dancing in which a man and a woman dance together using fixed sequences of steps and movements.
  • baltimore canyon — a submarine valley cut into the continental shelf and slope seaward of Chesapeake Bay.
  • bargaining scope — the range of topics within the scope of a particular set of negotiations leading to a collective agreement
  • barium carbonate — a white, poisonous, water-insoluble powder, BaCO 3 , used chiefly in the manufacture of rodenticides, paints, and dyes.
  • barometric error — error of a timepiece due to the fluctuations in density of the atmosphere through which the balance or pendulum moves.
  • basic dichromate — an orange-red, amorphous, water-insoluble powder, Bi 2 O 3 ⋅2CrO 3 , used chiefly as a pigment in paints.
  • basic vocabulary — the set of lexical items in a language that are most resistant to replacement, referring to the most common and universal elements of human experience, such as parts of the body (foot, eye), universal features of the environment (water, star), common activities (eat, sleep), and the lowest numerals.
  • basque provinces — an autonomous region of N Spain, comprising the provinces of Álava, Guipúzcoa, and Vizcaya: inhabited mainly by Basques, who retained virtual autonomy from the 9th to the 19th century. Pop: 1 840 700 (2003 est). Area: about 7250 sq km (2800 sq miles)
  • 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
  • bayonet practice — drill in the use of a bayonet
  • beneficial owner — a person entitled to receive the profits or proceeds of property
  • 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.
  • binocular fusion — fusion (def 5a).
  • binocular-fusion — the act or process of fusing; the state of being fused.
  • 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.
  • bleaching powder — a white powder with the odour of chlorine, consisting of chlorinated calcium hydroxide with an approximate formula CaCl(OCl).4H2O. It is used in solution as a bleaching agent and disinfectant
  • 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.
  • boarding officer — a coastguard who boards ships suspected of carrying illegal cargoes or posing a security risk
  • bomb calorimeter — a device for determining heats of combustion by igniting a sample in a high pressure of oxygen in a sealed vessel and measuring the resulting rise in temperature: used for measuring the calorific value of foods
  • bonhomme richard — the flagship of John Paul Jones.
  • bordelaise sauce — a dark sauce made from meat stock, flour, wine, onions, seasonings, etc., served over broiled meat
  • boreal chickadee — a brown-capped, black-throated chickadee (Parus hudsonicus) found near the Atlantic coast from Labrador to N New York
  • borosilicic acid — any of several hypothetical acids that form borosilicates.
  • boston cream pie — a cake of two layers with icing and a creamy filling
  • botanical garden — a place where collections of plants and trees are kept for scientific study and exhibition
  • branchial groove — one of a series of rudimentary depressions on the surface of the embryo between adjacent branchial arches, homologous to the branchial clefts of gill-breathing ancestral forms.
  • branchiopneustic — breathing by means of gills, as certain aquatic insect larvae.
  • brick-and-mortar — pertaining to conventional stores, businesses, etc., having physical buildings and facilities, as opposed to Internet or remote services.
  • british columbia — a province of W Canada, on the Pacific coast: largely mountainous with extensive forests, rich mineral resources, and important fisheries. Capital: Victoria. Pop: 4 400 057 (2011 est). Area: 930 532 sq km (359 279 sq miles)
  • bronchial asthma — asthma.
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