24-letter words containing i, y, e, a
- non-proliferation treaty — an international agreement signed in 1968 which aims to reduce the spread of nuclear weapons
- not ready for prime time — Usable, but only just so; not very robust; for internal use only. Said of a program or device. Often connotes that the thing will be made more solid Real Soon Now. This term comes from the ensemble name of the original cast of "Saturday Night Live", the "Not Ready for Prime Time Players". It has extra flavour for hackers because of the special (though now semi-obsolescent) meaning of prime time. Compare beta.
- object-oriented analysis — (programming) (OOA) The first phase of object-oriented design.
- open system architecture — (operating system) (OSA) A competitor to IBM's SNA.
- parliamentary government — government by a body of cabinet ministers who are chosen from and responsible to the legislature and act as advisers to a nominal chief of state.
- people's liberation army — See under Huk (def 1).
- permeability coefficient — the volume of an incompressible fluid that will flow in unit time through a unit cube of a porous substance across which a unit pressure difference is maintained
- physiological atmosphere — ecosphere.
- polychlorinated biphenyl — PCB.
- polymer matrix composite — A polymer matrix composite is a material consisting of a composite made stronger by adding fibers or particles to it.
- preparatory to doing sth — If one action is done preparatory to another, it is done before the other action, usually as preparation for it.
- pretty amazing new stuff — (humour, communications) (PANS) What PSTN is evolving into.
- private-key cryptography — (cryptography) As opposed to public-key cryptography, a cryptographic method in which the same key is used to encrypt and decrypt the message. Private-key algorithms include the obsolescent Data Encryption Standard (DES), triple-DES (3DES), the Advanced Encryption Standard (AES), also known as Rijndael, Blowfish, Twofish RC2, RC4, RC5 and RC6. A problem with private-key cryptography is that the sender and the recipient of the message must agree on a common key via some alternative secure channel.
- programmable array logic — (hardware) (PAL) A family of fuse-programmable logic integrated circuits originally developed by MMI. Registered or combinatorial output functions are modelled in a sum of products form. Each output is a sum (logical or) of a fixed number of products (logical and) of the input signals. This structure is well suited for automatic generation of programming patterns by logic compilers. PAL devices are programmed by blowing the fuses permanently using overvoltage. Today, more complex devices based on the same original architecture are available (CPLD's for Complex PLD's) that incorporate the equivalent of several original PAL chips. PAL chips are, however, still popular due to their high speed.
- psychopathic personality — an antisocial personality characterized by the failure to develop any sense of moral responsibility and the capability of performing violent or antisocial acts
- pyrotraumatic dermatitis — hot spot.
- quick-assembly furniture — furniture such as shelves and cupboards which you buy as a number of separate pieces and assemble yourself
- quinacrine hydrochloride — Atabrine
- rapid eye movement sleep — REM sleep.
- rational-emotive therapy — a form of therapy in which a patient is asked to reject irrational attitudes and assumptions in order to deal effectively with stressful situations.
- referential transparency — (programming) An expression E is referentially transparent if any subexpression and its value (the result of evaluating it) can be interchanged without changing the value of E. This is not the case if the value of an expression depends on global state which can change value. The most common example of changing global state is assignment to a global variable. For example, if y is a global variable in: f(x) { return x+y; } g(z) { a = f(1); y = y + z; return a + f(1); } function g has the "side-effect" that it alters the value of y. Since f's result depends on y, the two calls to f(1) will return different results even though the argument is the same. Thus f is not referentially transparent. Changing the order of evaluation of the statements in g will change its result. We could make f above referentially transparent by passing in y as an argument: f(x, y) = x+y Similarly, g would need to take y as an argument and return its new value as part of the result: g(z, y) { a = f(1, y); y' = y+z; return (a + f(1, y'), y'); } Referentially transparent programs are more amenable to formal methods and easier to reason about because the meaning of an expression depends only on the meaning of its subexpressions and not on the order of evaluation or side-effects of other expressions. We can stretch the concept of referential transparency to include input and output if we consider the whole program to be a function from its input to its output. The program as a whole is referentially transparent because it will always produce the same output when given the same input. This is stretching the concept because the program's input may include what the user types, the content of certain files or even the time of day. If we do not consider global state like the contents of files as input, then writing to a file and reading what was written behaves just like assignment to a global variable. However, if we must consider the state of the universe as an input rather than global state then any deterministic system would be referentially transparent! See also extensional equality, observational equivalence.
- repetitive strain injury — overuse strain injury
- representative democracy — a person or thing that represents another or others.
- responsibility allowance — payment made to somebody who has special responsibilities
- reverse annuity mortgage — a type of home mortgage under which an elderly homeowner is allowed a long-term loan in the form of monthly payments against his or her paid-off equity as collateral, repayable when the home is eventually sold. Abbreviation: RAM.
- ricardian theory of rent — economic rent.
- rocky mountain whitefish — mountain whitefish.
- san joaquin valley fever — coccidioidomycosis.
- sequentially compact set — a set in which every sequence has a subsequence that converges to a point of the set.
- shadow foreign secretary — the member of the main opposition party in Parliament who would hold the office of Foreign Secretary if their party were in power
- single european currency — the official currency, also known as the Euro, of some of the members of the European Union
- socialist workers' party — one of the biggest extreme left wing parties in Britain
- staggered pin grid array — (hardware) (SPGA) A style of integrated circuit socket or pin-out with a staggered grid of pins around the edge of the socket, positioned as several squares, one inside the other. SPGA is commonly used on motherboards for processors, e.g. Socket 5, Socket 7 and Socket 8. See also PGA.
- steak and kidney pudding — beefsteak and kidney in a suet pastry crust, steamed in a basin.
- supportive psychotherapy — a type of psychotherapy that seeks to reduce psychological conflict and strengthen a patient's defenses through the use of various techniques, as reassurance, suggestion, counseling, and reeducation.
- telephony user interface — (communications) (TUI) Either a software interface to telephony (e.g. a phone-capable PC) or a DTMF-based interface to software (e.g. voicemail).
- that goes without saying — that is self-evident
- the realm of possibility — If you say that something is not beyond the realms of possibility, you mean that it is possible.
- the way things are going — You can use the way things are going to indicate that you expect something to happen because of the way the present situation is developing.
- to keep something at bay — If you keep something or someone at bay, or hold them at bay, you prevent them from reaching, attacking, or affecting you.
- to lay something to rest — If you lay something such as fears or rumours to rest or if you put them to rest, you succeed in proving that they are not true.
- total quality management — Total quality management is a set of management principles aimed at improving performance throughout a company, especially by involving employees in decision-making. The abbreviation TQM is also used.
- tricarboxylic acid cycle — Krebs cycle.
- tricyclic antidepressant — pertaining to or embodying three cycles.
- trotskyist international — Fourth International.
- very large crude carrier — VLCC.
- virtual software factory — (programming, tool) (VSF) A product from Systematica which allows users to develop CASE tools appropriate to any software engineering methodology.
- visual component library — (programming) VCL A application framework library for Microsoft Windows and Borland Software Corp.'s Delphi and C++Builder rapid application development software. VCL was originally designed for Delphi but is now also used for C++Builder. This replaces OWL Object Windows Library as Borland's Windows C++ framework of choice. VCL encapsulates the C-based Win32 API into a much easier to use, object-oriented form. Like its direct rival, Microsoft Foundation Class Library (MFC), VCL includes classes to create Windows programs. The VCL component class can be inherited to create new VCL components, which are the building blocks of Delphi and C++Builder applications. VCL components are somewhat in competition with ActiveX controls, though a VCL wrapper can be created to make an ActiveX control seem like a VCL component.
- voluntary aid detachment — (in World War I) an organization of British women volunteers who assisted in military hospitals and ambulance duties
- water of crystallization — water of hydration, formerly thought necessary to crystallization: now usually regarded as affecting crystallization only as it forms new molecular combinations.