24-letter words containing a, c, r, e, i
- 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.
- 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.
- 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 character reader — the process or technology of reading data in printed form by a device (optical character reader) that scans and identifies characters. Abbreviation: OCR.
- 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.
- 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
- physiological atmosphere — ecosphere.
- pluck sth out of the air — If you say that someone plucks a figure, name, or date out of the air, you mean that they say it without thinking much about it before they speak.
- 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.
- 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.
- 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
- 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.
- 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.
- 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.
- 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
- pyrotraumatic dermatitis — hot spot.
- quadrature of the circle — the insoluble problem of constructing, by the methods of Euclidean geometry, a square equal in area to a given circle.
- 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.
- recursive descent parser — (grammar) A "top-down" parser built from a set of mutually-recursive procedures or a non-recursive equivalent where each such procedure usually implements one of the productions of the grammar. Thus the structure of the resulting program closely mirrors that of the grammar it recognises.