19-letter words containing p, r, e, n, g, i
- genetic programming — (programming) (GP) A programming technique which extends the genetic algorithm to the domain of whole computer programs. In GP, populations of programs are genetically bred to solve problems. Genetic programming can solve problems of system identification, classification, control, robotics, optimisation, game playing, and pattern recognition. Starting with a primordial ooze of hundreds or thousands of randomly created programs composed of functions and terminals appropriate to the problem, the population is progressively evolved over a series of generations by applying the operations of Darwinian fitness proportionate reproduction and crossover (sexual recombination).
- gentleman-pensioner — (formerly) a gentleman-at-arms.
- geocentric parallax — the apparent displacement of an observed object due to a change in the position of the observer.
- gigabits per second — (unit) (Gbps) A unit of information transfer rate equal to one billion bits per second. Note that, while a gigabit is defined as a power of two (2^30 bits), a gigabit per second is defined as a power of ten (10^9 bits per second, which is slightly less) than 2^30).
- give a person a fit — to surprise a person in an outrageous manner
- governing principle — a fundamental moral rule that guides and influences how something is done
- grade point average — a measure of scholastic attainment computed by dividing the total number of grade points received by the total number of credits or hours of course work taken.
- gregorian telescope — a telescope similar in design to the Cassegrainian telescope but less widely used.
- grievance procedure — the established series of steps to be taken in dealing with a grievance raised with an employer by an employee
- grosse pointe farms — a city in SE Michigan, near Detroit.
- grosse pointe woods — a city in SE Michigan, near Detroit.
- ground-plane aerial — a quarter-wave vertical dipole aerial in which the electrical image forming the other quarter-wave section is formed by reflection in a system of radially disposed metal rods or in a conductive sheet
- gulf of carpentaria — a shallow inlet of the Arafura Sea, in N Australia between Arnhem Land and Cape York Peninsula
- harbinger-of-spring — a North American umbelliferous herb, Erigenia bulbosa, having white flowers that bloom early in the spring.
- high-energy physics — the branch of particle physics that deals with the collisions of particles accelerated to such high energies that new elementary particles are created by the collisions.
- high-flying tippler — a variety of domestic pigeon bred mainly for flying
- highways department — the department of a state, council, etc, responsible for the upkeep of roads and highways
- hysterosalpingogram — An X-ray image taken during hysterosalpingography.
- imperative language — (language) Any programming language that specifies explicit manipulation of the state of the computer system, not to be confused with a procedural language, which specifies an explicit sequence of steps to perform. An example of an imperative (but non-procedural) language is a data manipulation language for a relational database management system. This specifies changes to the database but does not necessarily require anyone to specify a sequence of steps. Both contrast with declarative languages, which specify neither explicit state manipulation nor a sequence of steps.
- index expurgatorius — a list of books now included in the Index Librorum Prohibitorum, forbidden to be read except from expurgated editions.
- inglenook fireplace — a large fireplace with a space on either side
- intangible property — intellectual property, rights ownership
- intergalactic space — the region of physical space that exists between galaxies. The density is negligible, and close to an almost total vacuum
- interrogation point — question mark.
- iphigenia in tauris — a drama (413? b.c.) by Euripides.
- iterative deepening — (algorithm) A graph search algorithm that will find the shortest path with some given property, even when the graph contains cycles. When searching for a path through a graph, starting at a given initial node, where the path (or its end node) has some desired property, a depth-first search may never find a solution if it enters a cycle in the graph. Rather than avoiding cycles (i.e. never extend a path with a node it already contains), iterative deepening explores all paths up to length (or "depth") N, starting from N=0 and increasing N until a solution is found.
- jumping bristletail — any of several thysanuran insects that live in dark, warm, moist places, as under leaves, bark, and dead tree trunks and along rocky seacoasts, and are active jumpers, making erratic leaps when disturbed.
- kellogg-briand pact — a treaty renouncing war as an instrument of national policy and urging peaceful means for the settlement of international disputes, originally signed in 1928 by 15 nations, later joined by 49 others.
- knights hospitalers — a member of the religious and military order (Knights Hospitalers or Knights of St. John of Jerusalem) originating about the time of the first Crusade (1096–99) and taking its name from a hospital at Jerusalem.
- landscape gardening — the art or trade of designing or rearranging large gardens, estates, etc.
- load-bearing printf — (programming, humour) The kind of bug present in a program which works correctly when producing debug output but fails when the debugging is turned off. The expression combines load-bearing wall and printf as used in debugging by printf.
- magnetic north pole — the point on Earth to where a compass needle points, and which is situated near the geographic North Pole. However, with time, the exact location can vary.
- magnetic tape drive — (storage) (Or "tape drive") A peripheral device that reads and writes magnetic tape.
- megabits per second — (unit) (Mbps, Mb/s) Millions of bits per second. A unit of data rate. 1 Mb/s = 1,000,000 bits per second (not 1,048,576). E.g. Ethernet can carry 10 Mbps.
- moving spirit/force — The moving spirit or moving force behind something is the person or thing that caused it to start and to keep going, or that influenced people to take part in it.
- napierian logarithm — natural logarithm.
- neuropathologically — In a neuropathologic way.
- nonproprietary drug — A nonproprietary drug is a generic drug that is essentially similar to a drug with a brand name.
- old english pattern — a spoon pattern having a stem curving backward at the end.
- operational testing — (testing) A US DoD term for testing performed by the end-user on software in its normal operating environment.
- optimising compiler — (programming, tool) compiler which attempts to analyse the code it produces and to produce more efficient code by performing program transformation such as branch elimination, partial evaluation, or peep-hole optimisation. Contrast pessimising compiler.
- orthopaedic surgeon — a surgeon specializing in the branch of surgery concerned with disorders of the spine and joints and the repair of deformities of these parts
- paleoanthropologist — the study of the origins and predecessors of the present human species, using fossils and other remains.
- parallel processing — extending in the same direction, equidistant at all points, and never converging or diverging: parallel rows of trees.
- parliament building — structure housing legislative offices
- parliamentary agent — (in Britain) a person who is employed to manage the parliamentary business of a private group
- parthenogenetically — development of an egg without fertilization.
- particle technology — Particle technology is knowledge and study which relates to particles, and is used in industry.
- particular negative — a proposition of the form “Some S is not P.” Symbol: O.
- parting of the ways — When there is a parting of the ways, two or more people or groups of people stop working together or travelling together.