22-letter words containing a, m, t, r, c
- negative reinforcement — form of conditioning
- nickel-cadmium battery — a storage battery, with an alkaline electrolyte, having nickel oxide as the positive element and cadmium as the negative.
- no room to swing a cat — If you say 'There's no room to swing a cat' or 'You can't swing a cat', you mean that the place you are talking about is very small or crowded.
- nominal semidestructor — (abuse) Slang for "National Semiconductor", found among other places in the 4.3BSD networking sources. During the late 1970s to mid-1980s this company marketed a series of microprocessors including the National Semiconductor 16000 and National Semiconductor 32000. At one point early in the great microprocessor race, the specs on these chips made them look like serious competition for the rising Intel 80x86 and Motorola 680x0 series. Unfortunately, the actual parts were notoriously flaky and never implemented the full instruction set promised in their literature, apparently because the company couldn't get any of the mask steppings to work as designed. They eventually sank without trace, joining the Zilog Z8000 and a few even more obscure also-rans in the graveyard of forgotten microprocessors.
- non-euclidean geometry — geometry based upon one or more postulates that differ from those of Euclid, especially from the postulate that only one line may be drawn through a given point parallel to a given line.
- nonterminating decimal — a decimal numeral that does not end in an infinite sequence of zeros (contrasted with terminating decimal).
- normal order reduction — Under this evaluation strategy an expression is evaluated by reducing the leftmost outermost redex first. This method will terminate for any expression for which termination is possible, whereas applicative order reduction may not. This method is equivalent to passing arguments unevaluated because arguments are initially to the right of functions applied to them. See also computational adequacy theorem.
- oak processionary moth — a moth, (Thaumetopoea processionea), of the family Thaumetopoeidae, the larvae of which leave the communal shelter nightly for food in a V-shaped procession
- overstay one's welcome — to stay (at a party, on a visit, etc), longer than pleases the host or hostess
- parliamentary election — an election to select the members of a national parliament
- paroxysmal tachycardia — tachycardia that begins and subsides suddenly.
- particular affirmative — a proposition of the form “Some S is P.” Symbol: I.
- percussive maintenance — (jargon) The fine art of whacking a device to get it working, possibly using a fine adjuster.
- polymyalgia rheumatica — a chronic inflammatory disease, common among older persons, characterized by recurrent episodes of muscle pain and stiffness, sometimes leading to cardiovascular complications or blindness.
- post office department — former name of United States Postal Service.
- potassium ferricyanide — a bright-red, crystalline, water-soluble, poisonous solid, K 3 Fe(CN) 6 , used chiefly in the manufacture of pigments, as Prussian blue, and of paper, especially blueprint paper.
- potassium ferrocyanide — a lemon-yellow, crystalline, water-soluble solid, K 4 Fe(CN) 6 ⋅3H 2 O, used chiefly in casehardening alloys having an iron base and in dyeing wool and silk.
- practice makes perfect — If you say 'practice makes perfect', you mean that it is possible to learn something or develop a skill if you practise enough. People often say this to encourage someone to keep practising.
- preventive maintenance — (PM) To bring down a machine for inspection or test purposes. See provocative maintenance, scratch monkey.
- primary rate interface — (PRI) A type of ISDN connection. In North America and Japan, this consists of 24 channels, usually divided into 23 B channels and 1 D channel, and runs over the same physical interface as T1. Elsewhere the PRI has 31 user channels, usually divided into 30 B channels and 1 D channel and is based on the E1 interface. PRI is typically used for connections such as one between a PBX (private branch exchange, a telephone exchange operated by the customer of a telephone company) and a CO (central office, of the telephone company) or IXC (inter exchange carrier, a long distance telephone company).
- private-equity company — an organization that uses private equity to gain control of and manage companies
- process cinematography — cinematography in which the main or foreground action or scene is superimposed on or combined with simulated or separately filmed background action or scenery to produce special visual effects.
- procurement department — the department of (a company, organization, etc) responsible for purchasing and buying
- productivity agreement — an agreement whereby the employees of an organization agree to changes which are intended to improve productivity in return for an increase in pay or other benefits
- programmed instruction — a progressively monitored, step-by-step teaching method, employing small units of information or learning material and frequent testing, whereby the student must complete or pass one stage before moving on to the next.
- public domain software — public domain
- pulmonary tuberculosis — tuberculosis of the lungs.
- punctuated equilibrium — theory of, Biology. a hypothesis holding that the evolution of species proceeds in a characteristic pattern of relative stability for long periods of time interspersed with much shorter periods during which many species become extinct and new species emerge. Also called punctuationalism. Compare gradualism (def 3).
- quantum chromodynamics — a quantum field theory that describes quarks and gluons and their interactions, with the color of the quarks playing a role analogous to that of electric charge. Abbreviation: QCD. Also called chromodynamics. Compare color (def 18).
- range of accommodation — the range of distance over which an object can be accurately focused on the retina by accommodation of the eye.
- rapid deployment force — a U.S. military organization consisting of one Marine division and four Army divisions, established in 1979 to respond quickly to any distant threat to national interests.
- raster image processor — (application, printer) (RIP) A device (usually hardware but can be software) that takes a Page Description Language description of a page and converts it into a bitmap for printing.
- read someone a lecture — to scold or reprimand someone
- recruitment consultant — A recruitment consultant is a person or service that helps professional people to find work by introducing them to potential employers.
- rejoice in the name of — If you say that a person or thing rejoices in the name of something, you mean that they have a silly or amusing name.
- reliable communication — (communications) Communication where messages are guaranteed to reach their destination complete and uncorrupted and in the order they were sent. This reliability can be built on top of an unreliable protocol by adding sequencing information and some kind of checksum or cyclic redundancy check to each message or packet. If the communication fails, the sender will be notified. Transmission Control Protocol is a reliable protocol used on Ethernet.
- remote access services — (communications) (RAS) A service provided by Windows NT which allows most of the services which would be available on a network to be accessed over a modem link. The service includes support for dialup and logon, and then presents the same network interface as the normal network drivers (albeit slightly slower!). It is not necessary to run Windows NT on the client - there are client versions for other Windows operating systems.
- remote database access — (database, standard) (RDBA) A standard permitting the exchange of information between different DBMS systems.
- remote reference layer — (protocol) (RRL) Part of Java's Remote Method Invocation protocol. RRL exists in both the RMI client and server. It is used by the stub or skeleton protocol layer and uses the transport layer. RRL is reponsible for transport-independent functioning of RMI, such as connection management or unicast/multicast object invocation.
- replacement cost basis — Replacement cost basis is a method of valuing insured property in which the cost of replacing property is calculated without a reduction for depreciation.
- research establishment — an establishment or institution where research or investigation into a subject, topic, etc, can be conducted
- research systems, inc. — (RSI) Distributors of Interactive Data Language (IDL).
- resistance thermometer — an instrument for measuring the temperature of a metal, utilizing the principle that the electrical resistance of the metal varies with the temperature.
- respond to a complaint — If you respond to a complaint, you answer a customer who expressed their dissatisfaction with something.
- reverse discrimination — the unfair treatment of members of majority groups resulting from preferential policies, as in college admissions or employment, intended to remedy earlier discrimination against minorities.
- rocky mountain bighorn — bighorn.
- rocky mountain juniper — a juniper, Juniperus scopulorum, of western North America, that yields a soft, reddish wood used for making fences, pencils, etc., and that is also grown as an ornamental.
- rocky mountain oysters — mountain oyster.
- safety-critical system — A computer, electronic or electromechanical system whose failure may cause injury or death to human beings. E.g. an aircraft or nuclear power station control system. Common tools used in the design of safety-critical systems are redundancy and formal methods. See also aeroplane rule.
- sales force automation — (business) (Sales Automation, SFA, SFFA, Sales & Field Force Automation) Software to support sales reps. The software gives sales representitives access to contacts, appointments and e-mail. It is likely to be integrated with Customer Relationship Management systems and Opportunity Management Systems.