20-letter words containing a, g, o
- biogeochemical cycle — the cycle in which nitrogen, carbon, and other inorganic elements of the soil, atmosphere, etc. of a region are converted into the organic substances of animals or plants and released back into the environment
- biological diversity — Biological diversity is the same as biodiversity.
- biological half life — Physics. the time required for one half the atoms of a given amount of a radioactive substance to disintegrate.
- biological half-life — the time required for half of a quantity of radioactive material absorbed by a living tissue or organism to be naturally eliminated
- bismarck archipelago — a group of over 200 islands in the SW Pacific, northeast of New Guinea: part of Papua New Guinea. Main islands: New Britain, New Ireland, Lavongai, and the Admiralty Islands. Chief town: Rabaul, on New Britain. Pop: 566 610 (2000). Area: 49 658 sq km (19 173 sq miles)
- 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)
- 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.
- born-again christian — person: evangelical
- boulogne billancourt — a suburb of Paris, in N France.
- boulogne-billancourt — an industrial suburb of SW Paris. Pop: 106 367 (1999)
- breakerless ignition — electronic ignition.
- bring home the bacon — If you bring home the bacon, you achieve what you needed to achieve.
- broadcasting station — a television or radio station
- brown lung (disease) — a chronic disease of the lungs caused by inhalation of fine textile fibers, esp. cotton; byssinosis
- 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.
- 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.
- career limiting move — (jargon) (CLM, Sun) Any action endangering one's future prospects of getting plum projects and raises, and possibly one's job. E.g. "His Halloween costume was a parody of his manager. He won the prize for "best CLM"." A severe bug discovered by a customer might be a "CLM bug".
- 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.
- cassegrain telescope — an astronomical reflecting telescope in which incident light is reflected from a large concave paraboloid mirror onto a smaller convex hyperboloid mirror and then back through a hole in the concave mirror to form the image
- celestial navigation — navigation by observation of the positions of the stars
- cerebral haemorrhage — bleeding from an artery in the brain, which in severe cases causes a stroke
- châlons-en-champagne — a town in NE France, on the River Marne: scene of Attila's defeat by the Romans (451 ad). Pop: 47 339 (1999)
- change a reservation — If you change a reservation, you move a booking to a different date because someone who has booked a room has informed you that they wish to stay there on a different date.
- change-speed gearbox — A change-speed gearbox is a set of movable or constant gears which allows the speed ratio between input and output shafts to be changed either manually or automatically.
- child support agency — the British government agency concerned with the welfare of children
- 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.
- clay-pigeon shooting — the activity of shooting clay pigeons
- coalition government — a government containing members of two or more political parties
- cognitive dissonance — an uncomfortable mental state resulting from conflicting cognitions; usually resolved by changing some of the cognitions
- collective agreement — a negotiated agreement, which is not enforceable at law, between an employer and employees' representatives, covering rates of pay or terms and conditions of employment, or both
- college of cardinals — the collective body of cardinals having the function of electing and advising the pope
- college of education — a professional training college for teachers
- collegiate institute — (in certain provinces) a large secondary school with an academic, rather than vocational, emphasis
- comparative judgment — any judgment about whether there is a difference between two or more stimuli
- comparative religion — a field of study seeking to derive general principles from a comparison and classification of the growth and influence of various religions.
- compensating balance — Also, compensated balance, compensation balance. a balance wheel in a timepiece, designed to compensate for variations in tension in the hair spring caused by changes in temperature.
- compensation package — the sum of compensation awarded in a legal case
- compensatory damages — sum paid for a loss
- complementary angles — either of two angles that added together produce an angle of 90°.
- composite photograph — a photograph formed by superimposing two or more separate photographs
- computer programming — the activity or profession of writing computer programs
- computing dictionary — Free On-line Dictionary of Computing
- confectioners' sugar — Confectioners' sugar is very fine white sugar that is used for making icing and candy.
- congressional record — (in the US) the government journal that publishes all proceedings of Congress
- congressman-at-large — (in the US) a member of the House of Representatives who was elected by the voters of an entire state as opposed to the voters of a single Congressional district
- context-free grammar — (grammar) (CFG) A grammar where the syntax of each constituent (syntactic category or terminal symbol) is independent of the symbols occuring before and after it in a sentence. A context-free grammar describes a context-free language. Context-free grammars can be expressed by a set of "production rules" or syntactic rules. For example, a language with symbols "a" and "b" that must occur in unequal numbers can be represented by the CFG: S → U | V U → TaU | TaT | UaT V → TbV | TbT | VbT T → aTbT | bTaT | ε meaning the top-level category "S" consists of either a "U" or a "V" and so on. The special category "ε" represents the empty string. This grammar is context-free because each rule has a single symbol on its left-hand side.
- continental congress — the assembly of delegates from the North American rebel colonies held during and after the War of American Independence. It issued the Declaration of Independence (1776) and framed the Articles of Confederation (1777)
- contingency planning — planning for future events that seem less likely than others
- contingent liability — a possible liability that is dependent on the outcome of a future event