24-letter words containing a, v, i, t, o
- a close call/shave/thing — If you describe an event as a close shave, a close thing, or a close call, you mean that an accident or a disaster very nearly happened.
- above-the-line promotion — Above-the-line promotion is the use of promotional methods that cannot be directly controlled by the company selling the goods or service, such as television or press advertising. Compare below-the-line promotion.
- american indian movement — a militant movement or grouping of American Indians, organized in 1968 to combat discrimination, injustice, etc
- artificial radioactivity — radioactivity introduced into a nonradioactive substance by bombarding the substance with charged particles.
- autonomic nervous system — the section of the nervous system of vertebrates that controls the involuntary actions of the smooth muscles, heart, and glands. It has two divisions: the sympathetic and the parasympathetic
- avian pneumoencephalitis — Newcastle disease.
- back electromotive force — counter electromotive force.
- broadleaved spindle tree — a flowering tree, Euonymus Latifolius, native to some parts of Western Europe and widely planted as an ornamental
- cerebrovascular accident — a sudden interruption of the blood supply to the brain caused by rupture of an artery in the brain (cerebral haemorrhage) or the blocking of a blood vessel, as by a clot of blood (cerebral occlusion)
- chain and sprocket drive — A chain and sprocket drive is a type of power transmission in which a roller chain engages with two or more toothed wheels or sprockets, used in engines as a drive from crankshaft to camshaft.
- civil aviation authority — the national body governing civil aviation
- coefficient of variation — a measure of the relative variation of distribution independent of the units of measurement; the standard deviation divided by the mean, sometimes expressed as a percentage
- communicative competence — a speaker's internalized knowledge both of the grammatical rules of a language and of the rules for appropriate use in social contexts.
- compact disc interactive — (storage) (CD-i) An embedded application of CD-ROM allowing the user limited interaction with films, games and educational applications via a special controller.
- congestive heart failure — heart failure characterized by weakness, breathlessness, and abnormal congestion in the circulatory system, esp. in the lungs or lower legs
- conservation of momentum — the principle that the total linear or angular momentum in any isolated system is constant, provided that no external force is applied
- constant linear velocity — (storage) (CLV) A way of controlling the rotation of the disks in a disk drive in which the linear velocity of the disk surface relative to the read/write heads is kept constant. In order to achieve constant linear velocity, the disk must rotate faster (at a higher angular velocity) when reading or writing tracks closer to the centre. Having a constant linear read/write speed along the track means that the electrical signal to and from the heads has a constant data rate (bits per second), thus simplifying the timing of the drive electronics somewhat. However, rotating at less than the maximum possible rate sacrifices some potential performance compared to the alternative, constant angular velocity. Also, varying the rate causes more vibration and consumes more energy.
- cooperative credit union — a cooperative group that makes loans to its members at low rates of interest.
- cooperative multitasking — (parallel, operating system) A form of multitasking where it is the responsibility of the currently running task to give up the processor to allow other tasks to run. This contrasts with pre-emptive multitasking where the task scheduler periodically suspends the running task and restarts another. Cooperative multitasking requires the programmer to place calls at suitable points in his code to allow his task to be descheduled which is not always easy if there is no obvious top-level main loop or some routines run for a long time. If a task does not allow itself to be descheduled all other tasks on the system will appear to "freeze" and will not respond to user action. The advantage of cooperative multitasking is that the programmer knows where the program will be descheduled and can make sure that this will not cause unwanted interaction with other processes. Under pre-emptive multitasking, the scheduler must ensure that sufficient state for each process is saved and restored that they will not interfere. Thus cooperative multitasking can have lower overheads than pre-emptive multitasking because of the greater control it offers over when a task may be descheduled. Cooperative multitasking is used in RISC OS, Microsoft Windows and Macintosh System 7.
- cost-of-living allowance — an additional payment which takes account of the cost of living
- descriptive bibliography — the aspect of bibliography concerned with the close physical study and description of books and other works.
- destructive distillation — the decomposition of a complex substance, such as wood or coal, by heating it in the absence of air and collecting the volatile products
- developmental disability — a disability, as mental retardation or cerebral palsy, that begins at an early age and continues indefinitely, leading to substantial handicap.
- dynamic adaptive routing — Automatic rerouting of traffic based on analysis of current network conditions. This does not include routing decisions based on predefined information.
- environmental assessment — a formal assessment of the impact a project will have on the environment
- environmental management — controlled and planned management of the environment
- environmentally friendly — that has no or the least possible impact on the environment
- equivalence partitioning — equivalence class partitioning
- european investment bank — a financial institution of the European Union which is based in Luxembourg and which provides loans, especially to the less economically developed countries of the EU
- evolutionary computation — Computer-based problem solving systems that use computational models of evolutionary processes as the key elements in design and implementation. A number of evolutionary computational models have been proposed, including evolutionary algorithms, genetic algorithms, the evolution strategy, evolutionary programming, and artificial life.
- evolutionary programming — (EP) A stochastic optimisation strategy originally conceived by Lawrence J. Fogel in 1960. An initially random population of individuals (trial solutions) is created. Mutations are then applied to each individual to create new individuals. Mutations vary in the severity of their effect on the behaviour of the individual. The new individuals are then compared in a "tournament" to select which should survive to form the new population. EP is similar to a genetic algorithm, but models only the behavioural linkage between parents and their offspring, rather than seeking to emulate specific genetic operators from nature such as the encoding of behaviour in a genome and recombination by genetic crossover. EP is also similar to an evolution strategy (ES) although the two approaches developed independently. In EP, selection is by comparison with a randomly chosen set of other individuals whereas ES typically uses deterministic selection in which the worst individuals are purged from the population.
- false lily of the valley — a low-growing woodland plant, Maianthemum canadense, of the lily family, native to northeastern North America, having a cluster of small white flowers.
- give as good as one gets — If someone gives as good as they get, they fight or argue as well as the person they are fighting or arguing with.
- give hostages to fortune — to place oneself in a position in which misfortune may strike through the loss of what one values most
- global network navigator — (GNN) A collection of free services provided by O'Reilly & Associates. The Whole Internet Catalog describes the most useful Net resources and services with live links to those resources. The GNN Business Pages list companies on the Internet. The Internet Help Desk provides help in starting Internetq exploration. NetNews is a weekly publication that reports on the news of the Internet, with weekly articles on Internet trends and special events, sports, weather, and comics. There are also pages aobut travel and personal finance. E-mail: <[email protected]>. Telephone: (800) 998 9938 (USA), +1 (707) 829 0515 (outside USA).
- gottfried von strassburg — early 13th-century German poet; author of the incomplete epic Tristan and Isolde, the version of the legend that served as the basis of Wagner's opera
- have ants in one's pants — any of numerous black, red, brown, or yellow social insects of the family Formicidae, of worldwide distribution especially in warm climates, having a large head with inner jaws for chewing and outer jaws for carrying and digging, and living in highly organized colonies containing wingless female workers, a winged queen, and, during breeding seasons, winged males, some species being noted for engaging in warfare, slavemaking, or the cultivation of food sources.
- have at one's fingertips — to have available for instant use
- have one's head straight — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
- house of representatives — the lower legislative branch in many national and state bicameral governing bodies, as in the United States, Mexico, and Japan.
- human potential movement — a movement in psychology that includes group therapy, encounter therapy, primal therapy, etc., is based mainly on Freudian and Gestalt psychology, and is aimed at self-realization
- internet access provider — (networking, company) (IAP) A company or other origanisation which provides access to the Internet to businesses and/or consumers. An IAP purchases an Internet link from another company that has a direct link to the Internet and resells portions of that bandwidth to the general public. For example, an IAP may purchase a T1 link (1.544Mb/s) and resell that bandwidth in chunks consisting of ISDN (64Kb/s, 128Kb/s) and analog modems (14.4Kb/s, 28.8Kb/s). The IAP's customer base is likely to include both businesses and individuals. Individual customers usually connect to the IAP via a modem and telephone line to a (preferably local) point of presence. An IAP may also be an Internet Service Provider.
- interventional radiology — an application of radiology that enables minimally invasive surgery to be performed with the aid of simultaneous radiological imaging of the field of operation within the body
- involuntary manslaughter — the unlawful but unintentional killing of a human being
- involutional melancholia — (formerly) extreme depression related to menopause or, less frequently, the male climacteric.
- leave much to be desired — be inadequate
- leave someone to himself — not to control or direct someone
- local government officer — an employee of a local council
- low voltage differential — (hardware) (LVD) A method of driving SCSI cables that will be formalised in the SCSI-3 specifications. LVD uses less power than the current differential drive (HVD), is less expensive and will allow the higher speeds of Ultra-2 SCSI. LVD requires 3.3 Volts DC instead of 5 Volts DC for HVD.
- master-slave manipulator — any of various devices, guided by the hand of the operator, for imitating the motions and tactile sensitivity of the human hand to a greater or lesser extent: used in situations in which direct handling of the objects or materials involved would be dangerous or impossible.
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