23-letter words containing un
- (get in) under the wire — (to arrive or accomplish something) barely on time or at the last minute
- aberdeen proving ground — a federal reservation and U.S. Army training center in NE Maryland, S of Aberdeen and on W Chesapeake Bay, that is the site of a military testing ground.
- alternative conjunction — a conjunction, as or, that expresses an alternative relationship between the words, phrases, or clauses it connects.
- anti-vibration mounting — An anti-vibration mounting is a flexible support for an engine that reduces the amount of noise and vibration that passes to the vehicle chassis.
- any amount of something — If you say that there is any amount of something, there is a lot of it. If you say that there are any amount of people or things, there are many people or things.
- atrioventricular bundle — a bundle of specialized muscle fibers regulating the heartbeat by conducting impulses from the right atrium to the ventricles.
- bereavement counselling — the provision of advice for bereaved people to help them cope with their grief, sometimes given by charities and support groups
- black and tan coonhound — one of an American breed of large, powerful hound dogs having a short, dense, black coat with tan markings above the eyes and on the muzzle, chest, legs, feet, and breech, and low-set, drooping ears, used for hunting raccoons, opossums, and other larger game.
- boundary value analysis — (programming) A test data selection technique in which values are chosen to lie along data extremes. Boundary values include maximum, minimum, just inside/outside boundaries, typical values, and error values. The hope is that, if a systems works correctly for these special values then it will work correctly for all values in between.
- central processing unit — the part of a computer that performs logical and arithmetical operations on the data as specified in the instructions
- characteristic function — a function that assigns the value 1 to the members of a given set and the value 0 to its nonmembers
- communication breakdown — a lack of communication; a failure to exchange information
- communication interface — an electronic circuit, usually designed to a specific standard, that enables one machine to telecommunicate with another machine
- communications software — (communications, software) Application programs, operating system components, and probably firmware, forming part of a communication system. These different software components might be classified according to the functions within the Open Systems Interconnect model which they provide. Typical applications include a web browser, Mail User Agent, chat and telnet.
- communist international — Third International.
- communist-international — an international organization (1919–43), founded in Moscow, uniting Communist groups of various countries and advocating the attainment of their ends by violent revolution. Also called Comintern, Communist International. Compare international (def 6).
- community health centre — a medical centre that serves a particular area
- community-service order — (in Britain) a court order requiring an offender over seventeen years old to do unpaid socially beneficial work under supervision instead of going to prison
- conjunctive normal form — (logic) (CNF) A logical formula consisting of a conjunction of disjunctions of terms where no disjunction contains a conjunction. Such a formula might also be described as a product of sums. E.g. the CNF of (A and B) or C is (A or C) and (B or C). Contrast Disjunctive Normal Form.
- correlative conjunction — either member of a matched pair of words, of which the second is a coordinating conjunction, as either … or, neither … nor, both … and, or not only … but.
- corridor of uncertainty — an area of a wicket just outside a batsman's off stump, so located that the batsman will have difficulty in deciding whether or not to play a ball bowled into it
- cruncha cruncha cruncha — (jargon) /kruhn'ch* kruhn'ch* kruhn'ch*/ An encouragement sometimes muttered to a machine bogged down in a serious grovel. Also describes a notional sound made by grovelling hardware. See grind (sense 3).
- current-cost accounting — a method of accounting that values assets at their current replacement cost rather than their original cost
- cyclic redundancy check — (algorithm) (CRC or "cyclic redundancy code") A number derived from, and stored or transmitted with, a block of data in order to detect corruption. By recalculating the CRC and comparing it to the value originally transmitted, the receiver can detect some types of transmission errors. A CRC is more complicated than a checksum. It is calculated using division either using shifts and exclusive ORs or table lookup (modulo 256 or 65536). The CRC is "redundant" in that it adds no information. A single corrupted bit in the data will result in a one bit change in the calculated CRC but multiple corrupted bits may cancel each other out. CRCs treat blocks of input bits as coefficient-sets for polynomials. E.g., binary 10100000 implies the polynomial: 1*x^7 + 0*x^6 + 1*x^5 + 0*x^4 + 0*x^3 + 0*x^2 + 0*x^1 + 0*x^0. This is the "message polynomial". A second polynomial, with constant coefficients, is called the "generator polynomial". This is divided into the message polynomial, giving a quotient and remainder. The coefficients of the remainder form the bits of the final CRC. So, an order-33 generator polynomial is necessary to generate a 32-bit CRC. The exact bit-set used for the generator polynomial will naturally affect the CRC that is computed. Most CRC implementations seem to operate 8 bits at a time by building a table of 256 entries, representing all 256 possible 8-bit byte combinations, and determining the effect that each byte will have. CRCs are then computed using an input byte to select a 16- or 32-bit value from the table. This value is then used to update the CRC.
- disjunctive normal form — (DNF) A logical formula consisting of a disjunction of conjunctions where no conjunction contains a disjunction. E.g. the DNF of (A or B) and C is (A and C) or (B and C).
- drive sb round the bend — If you say that someone or something drives you round the bend, you mean that you dislike them and they annoy or upset you very much.
- european monetary union — the agreement between members of the European Union to establish a common currency. The current participating members are Austria, Belgium, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, the Netherlands, Portugal, and Spain
- fraunhofer gesellschaft — (company) (FhG, FhG IIS, Institut für Integrierte Schaltungen) A german company, named after the physicist. IIS is Integrated Circuit Institute. FhG are known for their research on audio compression, especially MPEG-1 Layer-3 (MP3).
- frictional unemployment — those people who are in the process of moving from one job to another and who therefore appear in the unemployment statistics collected at any given time
- function graph language — (language) (FGL) The machine language for the AMPS (Applicative Multi-Processing System) proposed by Robert Keller, Gary Lindstrom and Suhas Patil at the University of Utah.
- function point analysis — (programming) (FPA) A standard metric for the relative size and complexity of a software system, originally developed by Alan Albrecht of IBM in the late 1970s. Functon points (FPs) can be used to estimate the relative size and complexity of software in the early stages of development - analysis and design. The size is determined by identifying the components of the system as seen by the end-user: the inputs, outputs, inquiries, interfaces to other systems, and logical internal files. The components are classified as simple, average, or complex. All of these values are then scored and the total is expressed in Unadjusted FPs (UFPs). Complexity factors described by 14 general systems characteristics, such as reusability, performance, and complexity of processing can be used to weight the UFP. Factors are also weighted on a scale of 0 - not present, 1 - minor influence, to 5 - strong influence. The result of these computations is a number that correlates to system size. Although the FP metric doesn't correspond to any actual physical attribute of a software system (such as lines of code or the number of subroutines) it is useful as a relative measure for comparing projects, measuring productivity, and estimating the amount a development effort and time needed for a project. See also International Function Point Users Group.
- functional requirements — (specification) What a system should be able to do, the functions it should perform. This term is used at both the user requirements analysis and software requirements specifications phases in the software life-cycle. An example of a non-functional requirement is an initialisation sequence incorporated into the software that is specific to a given customer.
- fundamental interaction — any of the four basic interactions that occur in nature: the gravitational, electromagnetic, strong, and weak interactions
- heaviside unit function — the function that is zero for any number less than zero and that is 1 for any number greater than or equal to zero.
- horsehair-blight fungus — a fungal parasite, Marasmius equicrinis, that causes a disease of certain tropical plants, especially tea.
- hunchback of notre dame — French Notre Dame de Paris. a novel (1831) by Victor Hugo.
- hunter-killer satellite — a satellite designed to seek out and destroy a nearby enemy satellite by exploding itself into a cloud of high-speed metal fragments.
- hunter-killer submarine — a submarine designed and equipped to pursue and destroy enemy craft
- hypergeometric function — a function that is a solution to a hypergeometric equation.
- immunological tolerance — the absence of antibody production in response to the presence of antigens, usually as a result of previous exposure to the antigens
- invertible counterpoint — counterpoint in which the voices, while retaining their original form, may be interchanged above or below one another in any order.
- islamic fundamentalists — Muslims who believe in, advocate or support a conservative adherence to literal or traditional interpretations of the Qu'ran and the Sunnah
- keep sth under your hat — If you tell someone to keep a piece of information under their hat, you are asking them not to tell anyone else about it.
- l'apres-midi d'un faune — L'Après-midi d'un Faune.
- leave no stone unturned — the hard substance, formed of mineral matter, of which rocks consist.
- lieutenant junior grade — a commissioned officer ranking above an ensign and below a lieutenant.
- master gunnery sergeant — a noncommissioned officer ranking above a master sergeant. Abbreviation: Mgy Sgt.
- masters of the universe — extremely powerful and wealthy members of the financial professions
- message digest function — one-way hash function
- national safety council — a non profit organization that promotes and ensures health and safety standards
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