23-letter words containing a, c, t, i, n, o
- abstract interpretation — (theory) A partial execution of a program which gains information about its semantics (e.g. control structure, flow of information) without performing all the calculations. Abstract interpretation is typically used by compilers to analyse programs in order to decide whether certain optimisations or transformations are applicable. The objects manipulated by the program (typically values and functions) are represented by points in some domain. Each abstract domain point represents some set of real ("concrete") values. For example, we may take the abstract points "+", "0" and "-" to represent positive, zero and negative numbers and then define an abstract version of the multiplication operator, *#, which operates on abstract values: *# | + 0 - ---|------ + | + 0 - 0 | 0 0 0 - | - 0 + An interpretation is "safe" if the result of the abstract operation is a safe approximation to the abstraction of the concrete result. The meaning of "a safe approximation" depends on how we are using the results of the analysis. If, in our example, we assume that smaller values are safer then the "safety condition" for our interpretation (#) is a# *# b# <= (a * b)# where a# is the abstract version of a etc. In general an interpretation is characterised by the domains used to represent the basic types and the abstract values it assigns to constants (where the constants of a language include primitive functions such as *). The interpretation of constructed types (such as user defined functions, sum types and product types) and expressions can be derived systematically from these basic domains and values. A common use of abstract interpretation is strictness analysis. See also standard interpretation.
- abstract window toolkit — (graphics) (AWT) Java's platform-independent windowing, graphics, and user-interface toolkit. The AWT is part of the Java Foundation Classes (JFC) - the standard API for providing a graphical user interface (GUI) for a Java program. Compare: SWING.
- acceleration of gravity — the gravitational acceleration of a freely falling object, expressed in terms of the rate of increase of velocity per second: on earth 980.665 cm (32.17 ft) per second per second is the standard
- acoustical surveillance — the collecting or recording of information by sound-detection methods and devices, as for intelligence purposes.
- act of parliament clock — a pendulum wall clock of the late 18th century, usually having a black dial with gilt numbers: originally installed in English taverns because a burdensome tax prevented many homes from having private clocks.
- actionable intelligence — the necessary background information that will enable someone to deal quickly and efficiently with a particular situation
- adaptive cruise control — Adaptive cruise control is an electronic control system in a vehicle that makes sure that the vehicle keeps a safe distance from vehicles in front.
- advance corporation tax — a former UK tax in which a company paying a dividend had to deduct the basic rate of income tax from the grossed-up value of the dividend and pay it to the Inland Revenue
- affiliation proceedings — (formerly) legal proceedings, usually initiated by an unmarried mother, claiming legal recognition that a particular man is the father of her child, often associated with a claim for financial support
- african trypanosomiasis — sleeping sickness (def 1).
- alternative conjunction — a conjunction, as or, that expresses an alternative relationship between the words, phrases, or clauses it connects.
- american stock exchange — the second largest stock exchange in the U.S., located in New York City. Abbreviation: ASE, A.S.E.
- application development — the development of specialized programs or sets of specialized programs and associated documentation designed to carry out a particular task
- application programming — Computers. a program used for a particular application (opposed to system program).
- archaeomagnetism dating — the dating of archaeological specimens by determination of the magnetic alignment of objects containing ferromagnetic materials, as baked clay pots, within undisturbed archaeological sites.
- articles of association — the constitution and regulations of a registered company as required by the British Companies Acts
- artificial insemination — Artificial insemination is a medical technique for making a woman pregnant by injecting previously stored sperm into her womb. Female animals can also be made pregnant by artificial insemination. The abbreviation AI is also used.
- ashton-tate corporation — (company) The original vendor of dBASE and joint developers of EEMS. Ashton-Tate was founded by Charles Tate and Ashton was his pet parrot's name. The parrot lived in the lobby of the company's LA headquarters. In the early 1990s Ashton-Tate was taken over by Borland International, Inc., who later became Borland Software Corporation.
- astro-inertial guidance — celestial guidance.
- astronomical refraction — refraction (def 3).
- astronomical-refraction — Physics. the change of direction of a ray of light, sound, heat, or the like, in passing obliquely from one medium into another in which its wave velocity is different.
- asymmetrical modulation — (communications) A scheme to maximise use of a communications line by giving a larger share of the bandwidth to the modem at the end which is transmitting the most information. Only one end of the connection has full bandwidth, the other has only a fraction of the bandwidth. Normally, which end gets the full bandwidth is chosen dynamically. Asymmetrical modulation was made famous by the HST mode of the early high-speed modems from US Robotics.
- atanasoff, john vincent — John Vincent Atanasoff
- atomic energy authority — (in Britain) a government body established in 1954 to control research and development in atomic energy
- atrioventricular bundle — a bundle of specialized muscle fibers regulating the heartbeat by conducting impulses from the right atrium to the ventricles.
- autoerotic asphyxiation — asphyxia caused by intentionally strangling oneself while masturbating in order to intensify the orgasm through reduced oxygen flow to the brain.
- bank-and-turn indicator — a flight instrument that combines a bank indicator and turn indicator in a single unit.
- barrister and solicitor — an attorney who is licensed to prepare cases and argue them in court in the common-law provinces of Canada and in New Zealand and Australia.
- battered child syndrome — the array of physical injuries exhibited by young children who have been beaten repeatedly or otherwise abused by their parents or guardians.
- bereavement counselling — the provision of advice for bereaved people to help them cope with their grief, sometimes given by charities and support groups
- biological accumulation — the accumulation within living organisms of toxic substances occurring in the environment.
- branch coverage testing — (programming) A test method which aims to ensure that each possible branch from each decision point (e.g. "if" statement) is executed at least once, thus ensuring that all reachable code is executed.
- calorie-controlled diet — a diet that restricts a person to a limited number of calories per day
- capitalize on something — to use something to one's own advantage or profit
- casemaking clothes moth — any of several small moths of the family Tineidae, the larvae of which feed on wool, fur, etc., especially Tinea pellionella (casemaking clothes moth)
- cast in someone's teeth — (in most vertebrates) one of the hard bodies or processes usually attached in a row to each jaw, serving for the prehension and mastication of food, as weapons of attack or defense, etc., and in mammals typically composed chiefly of dentin surrounding a sensitive pulp and covered on the crown with enamel.
- catherine of alexandria — Saint, a.d. c310, Christian martyr.
- cauchy integral formula — a theorem that gives an expression in terms of an integral for the value of an analytic function at any point inside a simple closed curve of finite length in a domain.
- cauchy integral theorem — the theorem that the integral of an analytic function about a closed curve of finite length in a finite, simply connected domain is zero.
- caught in the crossfire — If you are caught in the crossfire, you become involved in an unpleasant situation in which people are arguing with each other, although you do not want to be involved or say which person you agree with.
- center-pivot irrigation — a method of irrigation, used mainly in the western U.S., in which water is dispersed through a long, segmented arm that revolves about a deep well and covers a circular area from a quarter of a mile to a mile in diameter.
- central processing unit — the part of a computer that performs logical and arithmetical operations on the data as specified in the instructions
- character assassination — A character assassination is a deliberate attempt to destroy someone's reputation, especially by criticizing them in an unfair and dishonest way when they are not present.
- characteristic equation — Mathematics. the characteristic polynomial of a given matrix, equated to zero. Also called auxiliary equation. an equation with one variable and equated to zero, which is derived from a given linear differential equation and in which the coefficient and power of the variable in each term correspond to the coefficient and order of a derivative in the original equation.
- characteristic function — a function that assigns the value 1 to the members of a given set and the value 0 to its nonmembers
- cheyne-stokes breathing — alternating shallow and deep breathing, as in comatose patients
- chi-square distribution — a continuous single-parameter distribution derived as a special case of the gamma distribution and used esp to measure goodness of fit and to test hypotheses and obtain confidence intervals for the variance of a normally distributed variable
- chief education officer — an official who is the chief administrative officer of a Local Education Authority
- chief operating officer — the executive in charge of day-to-day operations in an organization
- chorionic gonadotrophin — a hormone secreted by the chorionic villi of the placenta in mammals, esp human chorionic gonadotrophin. It promotes the secretion of progesterone by the corpus luteum and its presence in the urine is an indication of pregnancy
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