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20-letter words containing a, d, r, o, i

  • biological diversity — Biological diversity is the same as biodiversity.
  • bird-footed dinosaur — theropod.
  • black-bellied plover — a large plover, Pluvialis squatarola, of both the New and Old Worlds, having black underparts when in nuptial plumage.
  • black-throated diver — a diving bird, Gavia arctica, found in Europe and Asia, and a rare summer visitor to the UK
  • blue ridge mountains — a mountain range in the eastern US, extending from West Virginia into Georgia: part of the Appalachian mountains. Highest peak: Mount Mitchell, 2038 m (6684 ft)
  • board of supervisors — the governing body of a county in many U.S. states, especially in the Midwest and the East, consisting of from 15 to 100 members elected from towns, townships, cities, or wards.
  • bobbin and fly frame — a roving machine used in the final stages of converting spun cotton fiber into yarn.
  • bolometric magnitude — the magnitude of a star derived either from the total energy that it radiates at all wavelengths or from the total energy of those of its wavelengths that are received on earth.
  • bomb disposal expert — an expert in bomb disposal
  • bone mineral density — a measurement of the amount of calcium and other minerals in a segment of bone, a higher mineral content indicating a higher bone density and strength, used to detect osteoporosis or monitor its treatment.
  • bouvier des flandres — any of a breed of large, strong dog with a rough, wiry coat and pointed, erect ears
  • brittle bone disease — bone disorder
  • broadcast journalism — journalism as practiced in radio and television.
  • broadcasting station — a television or radio station
  • broaden o's/the mind — If an experience broadens your mind, it makes you more willing to accept other people's beliefs and customs.
  • brown lung (disease) — a chronic disease of the lungs caused by inhalation of fine textile fibers, esp. cotton; byssinosis
  • california barracuda — a small, slender barracuda, Sphyraena argentea, of coastal seas from Alaska to Baja California, valued as a food fish.
  • california gold fern — an evergreen fern, Pityrogramma triangularis, growing from British Columbia to California, having the underside of the leaves covered with a deep yellow, powderlike substance.
  • carbocyclic compound — any of a group of organic chemical compounds in which all the atoms composing the ring are carbon atoms, as benzene or cyclopropane.
  • carbohydrate loading — the practice of eating high amounts of carbohydrates, sometimes after a period of low carbohydrate intake, for several days immediately before competing in an athletic event, especially a marathon, in order to store glycogen in the body, thereby providing greater reserves of energy.
  • carbon tetrachloride — a colourless volatile nonflammable sparingly soluble liquid made from chlorine and carbon disulphide; tetrachloromethane. It is used as a solvent, cleaning fluid, and insecticide. Formula: CCl4
  • cartesian coordinate — Usually, Cartesian coordinates. a member of a system of coordinates for locating a point on a plane (Cartesian plane) by its distance from each of two intersecting lines, or in space by its distance from each of three planes intersecting at a point.
  • case based reasoning — (artificial intelligence)   (CBR) A technique for problem solving which looks for previous examples which are similar to the current problem. This is useful where heuristic knowledge is not available. There are many situations where experts are not happy to be questioned about their knowledge by people who want to write the knowledge in rules, for use in expert systems. In most of these situations, the natural way for an expert to describe his or her knowledge is through examples, stories or cases (which are all basically the same thing). Such an expert will teach trainees about the expertise by apprenticeship, i.e. by giving examples and by asking the trainees to remember them, copy them and adapt them in solving new problems if they describe situations that are similar to the new problems. CBR aims to exploit such knowledge. Some key research areas are efficient indexing, how to define "similarity" between cases and how to use temporal information.
  • central bedfordshire — a unitary authority of S central England. Pop: 252 100 (2007 est). Area: 712 sq km (275 sq miles)
  • certified accountant — (in Britain) a member of the Chartered Association of Certified Accountants, who is authorized to audit company accounts
  • chapter of accidents — a series of misfortunes
  • child support agency — the British government agency concerned with the welfare of children
  • childhood sweetheart — a boyfriend or girlfriend from an early stage of life
  • chromatic adaptation — the alteration by photosynthesizing organisms of the proportions of their photosynthetic pigments in response to the intensity and colour of the available light, as shown by algae in the littoral zone, which change from green to red as the zone is descended
  • chromaticity diagram — a diagram in which values of two chromaticity coordinates are marked on a pair of rectangular axes, a point in the plane of these axes representing the chromaticity of any colour
  • chrono-logical order — the arrangement of things following one after another in time: Put these documents in chronological order.
  • codex juris canonici — the official code of canon law in force in the Roman Catholic Church; introduced in 1918 and revised in 1983
  • coincident indicator — an economic indicator, as gross national product, that typically fluctuates in correlation with the total economy.
  • college of cardinals — the collective body of cardinals having the function of electing and advising the pope
  • comparative judgment — any judgment about whether there is a difference between two or more stimuli
  • complaints procedure — a prescribed method of lodging a complaint to an institution
  • computing dictionary — Free On-line Dictionary of Computing
  • congressional record — (in the US) the government journal that publishes all proceedings of Congress
  • conservative judaism — a movement reacting against the radicalism of Reform Judaism, rejecting extreme change and advocating moderate relaxations of traditional Jewish law, by an extension of the process by which its adherents claim traditional Orthodox Judaism evolved
  • contradistinguishing — Present participle of contradistinguish.
  • convective discharge — the repulsion of ions of a gas by a highly charged body, creating a discernible wind.
  • coordination complex — one of a number of complex compounds in which an atom or group of atoms is bound to the central atom by a shared pair of electrons supplied by the coordinated group and not by the central atom
  • corresponding angles — a pair of nonadjacent angles, one interior and one exterior, on the same side of a transversal: these paired angles are equal if the lines cut by the transversal are parallel
  • counterdemonstration — a demonstration that is held in reaction to another demonstration
  • criminal proceedings — action taken in a court to bring a criminal prosecution against someone
  • crossword dictionary — a dictionary that lists common clues found in crossword puzzles with potential answer words. In books, the lists are usually sorted by the number of letters in the answer, while an online crossword dictionary, such as the Dictionary.com Crossword Solver, is able to analyze queries electronically, examining either the clue or the number and pattern of letters already filled in to arrive at suggested answers.
  • crude oil evaluation — Crude oil evaluation is the process of assessing the chemical and physical properties of crude oil, against particular standards.
  • cut the gordian knot — to find a quick, bold solution for a perplexing problem
  • cycloidal propulsion — propulsion of a vessel by propellers of controllable pitch that steer as well as propel.
  • cytosine arabinoside — cytarabine.
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