26-letter words containing n, o, t, r, i
- nuclear magnetic resonance — the selective absorption of electromagnetic radiation by an atomic nucleus in the presence of a strong, static, magnetic field: used in research and in medicine to monitor tissue metabolism and to distinguish between normal and abnormal cells. Abbreviation: NMR.
- object constraint language — (language) (OCL) A formal specification language extension to UML. The Object Constraint Language is a precise text language that provides constraint and object query expressions on an object-oriented model that cannot otherwise be expressed by diagrammatic notation. OCL supplements UML by providing expressions that have neither the ambiguities of natural language nor the inherent difficulty of using complex mathematics. OCL is a descendent of Syntropy, a second-generation object-oriented analysis and design method. The OCL 1.4 definition specified a constraint language. In OCL 2.0, the definition has been extended to include general object query language definitions.
- official production system — (language) (OPS) The first production system (i.e. rule based) programming language, developed at CMU in 1970 and used for building expert systems. OPS was originally written in Franz Lisp and later ported to other LISP dialects.
- on the straight and narrow — If something keeps people on the straight and narrow, it helps to keep them living an honest or healthy life.
- open document architecture — (standard) (ODA) ISO standard (8613) for describing documents. It allows text, graphics, and facsimile documents to be transferred between different systems.
- open the door to something — If someone or something opens the door to a good new idea or situation, they introduce it or make it possible.
- or otherwise/and otherwise — You use or otherwise or and otherwise to mention something that is not the thing just referred to or is the opposite of that thing.
- orbiting solar observatory — OSO.
- orthogonal instruction set — (architecture) An instruction set where all (or most) instructions have the same format and all registers and addressing modes can be used interchangeably - the choices of op code, register, and addressing mode are mutually independent (loosely speaking, the choices are "orthogonal"). This contrasts with some early Intel microprocessors where only certain registers could be used by certain instructions. Examples include the PDP-11, 680x0, ARM, VAX.
- overdraft checking account — a bank account with a credit line permitting checks to be written for an amount above the account balance, subject to a finance charge on the overdraft.
- paraconsistent probability — (logic) A notion introduced by Florentin Smarandache: The probability (T, I, F) that an event occurs is calculated from different sources which may be contradictory or may overlap information; here T, I, F are real subsets representing the truth, indeterminacy, and falsity percentages respectively, and n_sup = sup(T)+sup(I)+sup(F) > 100. See neutrosophic probability
- parent teacher association — an organization of teachers and the parents of their students, as within a public school, to promote mutual understanding and to increase the effectiveness of the educational program. Abbreviation: PTA, P.T.A.
- parent-teacher association — an organization of teachers and the parents of their students, as within a public school, to promote mutual understanding and to increase the effectiveness of the educational program. Abbreviation: PTA, P.T.A.
- pellagra-preventive factor — nicotinic acid or its amide, nicotinamide, being the vitamin-B-complex members that serve to prevent pellagra.
- period-luminosity relation — the relationship between the period of light variation and of the absolute magnitude of Cepheid variable stars.
- personal digital assistant — a handheld computer, often pen-based, that provides especially organizational software, as an appointment calendar, and communications hardware, as a fax modem. Abbreviation: PDA.
- philosophical anthropology — anthropology (def 4).
- philosophical-anthropology — the science that deals with the origins, physical and cultural development, biological characteristics, and social customs and beliefs of humankind.
- physical transport network — (communications) (PTN) The actual hardware through which data transfer devices are connected.
- portable forth environment — (language) (PFE) A highly portable Forth development system based on the ANSI standard for Forth, by Dirk-Uwe Zoller of FHT, Mannheim, Germany. PFE aims to be correct, complete, usable, and simple but it isn't optimised for speed. It supports all dpANS word sets. It runs on Linux, RS/6000, and HP-UX. E-mail: Guido Draheim <[email protected]>.
- post-and-beam construction — wall construction in which beams rather than studs are used to support heavy posts.
- postprandial thermogenesis — the rate at which food is broken down after a meal and used by your body
- prince henry the navigator — Prince, 1394–1460, prince of Portugal.
- principle of superposition — any of several physical laws that the resultant of similar vector quantities at a point is a function of the sum of the individual quantities, especially the law that the displacement at a point in a medium undergoing simple harmonic motion is equal to the sum of the displacements of each individual wave.
- privately held corporation — A privately held corporation is a company whose shares cannot be bought by the general public.
- professional office system — (messaging) (PROFS) An office messaging system from IBM, used worldwide, mainly on IBM mainframes.
- public-service corporation — a private or quasi-private corporation chartered to provide an essential commodity or service to the public.
- pulse repetition frequency — the number of pulses per second in a system of pulse transmission. Abbreviation: PRF.
- purely functional language — (language) A language that supports only functional programming and does not allow functions to have side-effects. Program execution consists of evaluation of an expression and all subexpressions are referentially transparent.
- put a bug in someone's ear — Also called true bug, hemipteran, hemipteron. a hemipterous insect.
- put one's signature to sth — If you put your signature to a document, you sign it as a way of officially showing that you agree with what is written.
- quite apart from something — used to indicate that you are aware of one aspect of a situation, but that you are going to focus on another aspect
- real-time operating system — (operating system) (RTOS) Any operating system where interrupts are guaranteed to be handled within a certain specified maximum time, thereby making it suitable for control of hardware in embedded systems and other time-critical applications. RTOS is not a specific product but a class of operating systems.
- recombinant dna technology — any of various techniques for separating and recombining segments of DNA or genes, often employing a restriction enzyme to cut a gene from a donor organism and inserting it into a plasmid or viral DNA for transplantation into a host organism, where the gene causes the production of a desired substance either for harvesting or for the benefit of the host organism itself.
- record management services — (operating system) (RMS) Procedures in the VMS operating system that programs call to process files and records within files. RMS allows programs to issue GET and PUT requests at the record level (record I/O) as well as read and write blocks (block I/O). VMS RMS is an integral part of the system software; its procedures run in executive mode.
- recreation room (or hall) — a room, as in a home (or a public hall), equipped for amusement and relaxation or for social activities
- refinery’s own consumption — Refinery's own consumption is the gas and fuel which is burnt to operate the units in a refinery and generate electricity and steam.
- remembrance of things past — a novel (1913–27) by Marcel Proust.
- renegotiable-rate mortgage — a type of home mortgage for which monthly payments stay constant for a term, usually of three to five years, and the interest rate is renegotiated at the end of every such term until the loan is paid off. Abbreviation: RRM.
- repetitive strain disorder — overuse strain injury
- replacement cost insurance — Replacement cost insurance is insurance in which the cost of replacing property is calculated without a reduction for depreciation.
- resistance transfer factor — R factor.
- retained object complement — an object complement that is kept in its predicative position following the verb when the verb is transformed into the passive voice, as genius in He was considered a genius from (They) considered him a genius.
- reticuloendothelial system — the aggregate of the phagocytic cells, including certain cells of the bone marrow, lymphatic system, liver, and spleen, that have reticular and endothelial characteristics and function in the immune system's defense against foreign bodies. Abbreviation: RES.
- richthofen's flying circus — the German 11th Chasing Squadron of World War I, commanded by Baron Richthofen
- ritz combination principle — the principle that the frequencies of lines in atomic spectra can be represented as differences of a smaller number of terms, all characteristic of the emitting system, interpreted in quantum theory as the emission of exactly one photon in a transition between energy levels.
- sangre de cristo mountains — a mountain range in S Colorado and N New Mexico: part of the Rocky Mountains. Highest peak: Blanca Peak, 4364 m (14 317 ft)
- santiago de los caballeros — a city in the N central Dominican Republic.
- schroder-bernstein theorem — the theorem of set theory that if two sets are so related that each can be placed in one-to-one correspondence with a subset of the other, then the sets are equivalent.
- scintillation spectrometer — a scintillation counter adapted for measuring the energy distribution of particles emitted in radioactive processes.