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24-letter words containing p, e, r, i

  • consultant paediatrician — a paediatrician who has attained the rank of consultant
  • 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.
  • correspondence principle — the principle that the laws of quantum mechanics and of any new theory that may be developed reduce to the laws of Newtonian mechanics and electromagnetic theory when applied to systems in which Planck's constant can be regarded as negligible, wavelengths are comparatively small, dimensions are relatively large, etc.
  • crime prevention officer — a member of the police who advises the public on how best to avoid crimes, esp being burgled
  • cross/step over the line — If you say that someone has crossed the line or has stepped over the line, you mean that they have behaved in a way that is considered unacceptable.
  • data encryption standard — (DES) The NBS's popular, standard encryption algorithm. It is a product cipher that operates on 64-bit blocks of data, using a 56-bit key. It is defined in FIPS 46-1 (1988) (which supersedes FIPS 46 (1977)). DES is identical to the ANSI standard Data Encryption Algorithm (DEA) defined in ANSI X3.92-1981. DES has been implemented in VLSI. SunOS provides a des command which can make use of DES hardware if fitted. Neither the software nor the hardware are supposed to be distributed outside the USA.
  • dead white european male — a man whose importance and talents may have been exaggerated because he belonged to a historically dominant gender and ethnic group
  • decentralized processing — the use of word processing or data processing units in stand-alone or localized situations
  • decision support systems — (application, tool)   (DSS) Software tools to help with decision support.
  • descriptive bibliography — the aspect of bibliography concerned with the close physical study and description of books and other works.
  • detective superintendent — a police officer who investigates crime and who ranks above a detective chief inspector but below a detective chief superintendent
  • detoxification programme — a programme of treatment for alcoholism or drug addiction
  • dionysius the areopagite — 1st century a.d, Athenian scholar: converted to Christianity by Saint Paul c50.
  • diphenylaminechlorarsine — adamsite.
  • display screen equipment — Visual Display Unit
  • disturbance of the peace — a malicious and willful intrusion on the peace and quiet of a community or neighbourhood
  • dynamic adaptive routing — Automatic rerouting of traffic based on analysis of current network conditions. This does not include routing decisions based on predefined information.
  • ecole normale superieure — (body)   (ENS) A higher education and research institution in Paris, France.
  • effective sound pressure — the square root of the mean of the squares of the sound pressures of a sound wave, measured at a given point over a certain time interval.
  • electrocardiographically — By means of electrocardiography.
  • electromagnetic spectrum — the complete range of electromagnetic radiation from the longest radio waves (wavelength 105 metres) to the shortest gamma radiation (wavelength 10–13 metre)
  • electronic point of sale — a computerized system for recording sales in retail shops, using a laser scanner at the cash till to read bar codes on the packages of the items sold
  • english springer spaniel — breed of dog
  • equivalence partitioning — equivalence class partitioning
  • ethyl-para-aminobenzoate — benzocaine
  • 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.
  • explicit type conversion — (programming)   (Or "cast" in C and elsewhere). A programming construct (syntax) to specify that an expression's value should be converted to a different type. For example, in C, to convert an integer (usually 32 bits) to a char (usually 8 bits) we might write: int i = 42; char *p = &buf; *p = (char) i; The expression "(char)" (called a "cast") converts i's value to char type. Casts (including this one) are often not strictly necessary, due to automatic coercions performed by the compiler, but can be used to make the conversion obvious and to avoid warning messages.
  • exponential distribution — a continuous single-parameter distribution used esp when making statements about the length of life of certain materials or waiting times between randomly occurring events. Its density function is p(x) = λe–λx for positive λ and nonnegative x, and it is a special case of the gamma distribution
  • extra-sensory perception — Extra-sensory perception means knowing without using your ordinary senses such as sight and hearing. Some people believe this is possible. The abbreviation ESP is also used.
  • fcc propylene production — FCC propylene production is the production of propylene from a catalytic cracker.
  • federal power commission — FPC.
  • fight-or-flight response — the response of the sympathetic nervous system to a stressful event, preparing the body to fight or flee, associated with the adrenal secretion of epinephrine and characterized by increased heart rate, increased blood flow to the brain and muscles, raised sugar levels, sweaty palms and soles, dilated pupils, and erect hairs.
  • figure-ground phenomenon — the division of the perceptual field into background and objects that appear to stand out against it. The concept was evolved by the Gestalt psychologists, who invented ambiguous figures in which the same part could be seen either as figure or ground
  • finger-pointing syndrome — (programming)   All-too-frequent result of bugs, especially in new or experimental configurations. The hardware vendor points a finger at the software. The software vendor points a finger at the hardware. All the poor users get is the finger.
  • fish protein concentrate — an odorless and tasteless high-protein food additive made from ground fish and suitable for human consumption. Abbreviation: FPC.
  • floating point underflow — underflow
  • floating-point specratio — SPECfp92
  • general protection fault — General Protection Failure
  • geographical determinism — the theory that human activity is determined by geographical conditions
  • give someone enough rope — a strong, thick line or cord, commonly one composed of twisted or braided strands of hemp, flax, or the like, or of wire or other material.
  • glasgow haskell compiler — (language)   (GHC) A Haskell 1.2 compiler written in Haskell by the AQUA project at Glasgow University, headed by Simon Peyton Jones <[email protected]> throughout the 1990's [started?]. GHC can generate either C or native code for SPARC, DEC Alpha and other platforms. It can take advantage of features of gcc such as global register variables and has an extensive set of optimisations. GHC features an extensible I/O system based on a "monad", in-line C code, fully fledged unboxed data types, incrementally-updatable arrays, mutable reference types, generational garbage collector, concurrent threads. Time and space profiling is also supported. It requires GNU gcc 2.1+ and Perl. GHC runs on Sun-4, DEC Alpha, Sun-3, NeXT, DECstation, HP-PA and SGI. E-mail: <[email protected]>.
  • graduated pension scheme — (between 1961 and 1975) an earnings-related pension scheme which was based on the amount of an employee's National Insurance contributions
  • graphical user interface — a software interface designed to standardize and simplify the use of computer programs, as by using a mouse to manipulate text and images on a display screen featuring icons, windows, and menus.
  • great saint bernard pass — St. Bernard, Great.
  • gregorio lopez y fuentes — Gregorio [gre-gaw-ryaw] /grɛˈgɔ ryɔ/ (Show IPA), 1895–1966, Mexican writer.
  • ground-fault interrupter — a circuit breaker that senses currents caused by ground faults and quickly shuts off power before damage can occur to generating equipment.
  • gulf cooperation council — an association of Persian Gulf nations formed for the purpose of collective defense against aggression. Abbreviation: GCC.
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