24-letter words containing a, n, c, r
- motorway service station — an establishment off a motorway where drivers can refuel their vehicles, buy food, drink, etc
- mutual insurance company — an insurance company owned by the policyholders and not by shareholders
- nalbuphine hydrochloride — an opiate drug used as a painkiller
- narcissistic personality — a personality disorder characterized by extreme self-centeredness and self-absorption, fantasies involving unrealistic goals, an excessive need for attention and admiration, and disturbed interpersonal relationships.
- national weather service — an agency of the National Oceanic and Atmospheric Administration that is responsible for meteorological observations, weather forecasts, storm and flood warnings, etc.
- near field communication — a short-range wireless communication system that uses radio waves to enable a phone or other mobile device to interact with another device or card reader: Near Field Communication essentially lets your phone replace your credit cards. Abbreviation: NFC.
- network attached storage — (networking, storage) (NAS) Fixed disks, RAID arrays, and magnetic tape drives connected directly to a Storage Area Network (SAN) or other direct network connection. This is in contrast to a file server where the peripherals are connected to the network via a computer (the server).
- neutrosophic probability — (logic) An extended form of probability based on Neutrosophy, in which a statement is held to be t true, i indeterminate, and f false, where t, i, f are real values from the ranges T, I, F, with no restriction on T, I, F or the sum n=t+i+f.
- new england clam chowder — a thick chowder made from clams, potatoes, onions, sometimes salt pork, and milk or cream.
- nongonococcal urethritis — a widespread sexually transmitted infection of the urethra, caused by the parasite Chlamydia trachomatis, or the mycoplasm Ureaplasma urealyticum, characterized in males by painful urination and discharge from the penis and in females by frequent, painful urination and cervical erosion. Abbreviation: NGU.
- nonparametric statistics — the branch of statistics that studies data measurable on an ordinal or nominal scale, to which arithmetic operations cannot be applied
- north equatorial current — a westward-flowing ocean current occurring N of the equator in the Atlantic and Pacific oceans.
- object-oriented analysis — (programming) (OOA) The first phase of object-oriented design.
- object-oriented database — (database) (OODB) A system offering DBMS facilities in an object-oriented programming environment. Data is stored as objects and can be interpreted only using the methods specified by its class. The relationship between similar objects is preserved (inheritance) as are references between objects. Queries can be faster because joins are often not needed (as in a relational database). This is because an object can be retrieved directly without a search, by following its object id. The same programming language can be used for both data definition and data manipulation. The full power of the database programming language's type system can be used to model data structures and the relationship between the different data items. OODBs typically provide better support for versioning. An object can be viewed as the set of all its versions. Also, object versions can be treated as full fledged objects. OODBs also provide systematic support for triggers and constraints which are the basis of active databases. Most, if not all, object-oriented application programs that have database needs will benefit from using an OODB.
- object-oriented language — object-oriented programming
- officers' training corps — part of the British Army which provides military leadership training to students at UK universities
- on the right/wrong track — If you are on the right track, you are acting or progressing in a way that is likely to result in success. If you are on the wrong track, you are acting or progressing in a way that is likely to result in failure.
- open data-link interface — (networking, standard) (ODI) A Novell-developed network card API that provides media and protocol independence. It allows the sharing of a single card by multiple transport layer protocols and resolves conflicts.
- open system architecture — (operating system) (OSA) A competitor to IBM's SNA.
- optical signal processor — optical computing
- orographic precipitation — precipitation caused by the lifting of moist air over a mountain barrier.
- parallel cousin marriage — marriage between the children of two brothers or two sisters.
- parallel virtual machine — (parallel, networking, tool) (PVM) 1. A software system designed to allow a network of heterogeneous machines to be used as a single distributed parallel processor. PVM was developed by the University of Tennessee, The Oak Ridge National Laboratory and the Emory University. 2. The intermediate language used by the Gambit compiler for Scheme.
- parochial church council — the ruling body of a parish, composed of the vicar, the churchwardens, and elected laypersons.
- particulate fluidization — Particulate fluidization is a condition when particles in a fluidized bed are individually suspended.
- passive balance of trade — a negative balance of trade
- 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
- photomechanical transfer — a method of producing photographic prints or offset printing plates from paper negatives by a chemical transfer process rather than by exposure to light
- polychlorinated biphenyl — PCB.
- portable document format — (file format) (PDF) The native file format for Adobe Systems' Acrobat. PDF is the file format for representing documents in a manner that is independent of the original application software, hardware, and operating system used to create those documents. A PDF file can describe documents containing any combination of text, graphics, and images in a device-independent and resolution independent format. These documents can be one page or thousands of pages, very simple or extremely complex with a rich use of fonts, graphics, colour, and images.
- potassium cobaltinitrite — a yellow, crystalline, slightly water-soluble powder, K 3 Co(NO 2) 6 , used as a pigment in oil and watercolor paints, and for coloring surfaces of glass, porcelain, etc.
- potentiometric titration — titration in which the end point is determined by measuring the voltage of an electric current of given amperage passed through the solution.
- present company excepted — If you are making a general, unfavourable comment about a particular type of person, and you are with people of that type, you can say 'present company excepted' as a way of making your comment sound more polite.
- principal quantum number — the nonnegative, integral quantum number that defines the stationary orbits in the Bohr model of the atom.
- private health insurance — insurance against the need for medical treatment as a private patient
- privileged communication — a communication that one cannot legally be compelled to divulge, as that to a lawyer from a client
- professional association — a body of persons engaged in the same profession, formed usually to control entry into the profession, maintain standards, and represent the profession in discussions with other bodies
- professional corporation — a corporation formed by one or more licensed practitioners, especially medical or legal, to operate their practices on a corporate plan. Abbreviation: PC, P.C.
- progressive conservative — a member of the Progressive Conservative party of Canada.
- 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
- public international law — Also called public law. the law governing the legal relations between independent states or nations and, increasingly, between these and individuals.
- public relations officer — a person who is responsible for communications with the public
- pure functional language — purely functional language
- quantitative inheritance — the process in which the additive action of numerous genes results in a trait, as height, showing continuous variability.
- quick-assembly furniture — furniture such as shelves and cupboards which you buy as a number of separate pieces and assemble yourself
- quinacrine hydrochloride — Atabrine
- recharge one's batteries — If you recharge a battery, you put an electrical charge back into the battery by connecting it to a machine that draws power from another source of electricity.
- reciprocal translocation — an exchange of segments between two nonhomologous chromosomes.
- recommended retail price — the selling price of a product officially suggested by a manufacturer to a retailer
- reconnaissance satellite — a military satellite designed to carry out photographic surveillance, gather electronic intelligence, detect nuclear explosions, or provide early warning of strategic-missile launchings.