19-letter words containing g, i, m, c, r
- 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).
- geomagnetic equator — an imaginary line on the earth's surface, the plane of which passes through the center and is midway between the geomagnetic poles.
- geometric isomerism — each of two or more chemical compounds having the same molecular formula but a different geometric arrangement; an unsaturated compound or ring compound in which rotation around a carbon bond is restricted, as in cis- and trans- configurations.
- giraldus cambrensis — literary name of Gerald de Barri. ?1146–?1223, Welsh chronicler and churchman, noted for his accounts of his travels in Ireland and Wales
- glottalic airstream — a current of air in the pharynx produced by the action of the glottis.
- grammatical meaning — the meaning of an inflectional morpheme or of some other syntactic device, as word order.
- greenwich mean time — the time as measured on the prime meridian running through Greenwich, England: used in England and as a standard of calculation elsewhere.
- grievance committee — a group of representatives chosen from a labor union or from both labor and management to consider and remedy workers' grievances.
- hermitian conjugate — adjoint (def 2).
- human rights record — the facts that are known about the tendency of a country, regime, etc, to observe and protect human rights
- hyperbolic geometry — the branch of non-Euclidean geometry that replaces the parallel postulate of Euclidean geometry with the postulate that two distinct lines may be drawn parallel to a given line through a point not on the given line.
- i'm all right, jack — a remark indicating smug and complacent selfishness
- immigration control — a method or methods for regulating border laws and immigration
- immigration officer — official administrating incoming foreigners
- inorganic chemistry — the branch of chemistry dealing with inorganic compounds.
- intermediate-acting — (of a drug) intermediate in its effects between long- and short-acting drugs
- jacques montgolfier — Jacques Étienne [zhahk ey-tyen] /ʒɑk eɪˈtyɛn/ (Show IPA), 1745–99, and his brother Joseph Michel [zhaw-zef mee-shel] /ʒɔˈzɛf miˈʃɛl/ (Show IPA) 1740–1810, French aeronauts: inventors of the first practical balloon 1783.
- king's remembrancer — (in Great Britain) a judiciary official who collects debts owed to the king.
- landrum-griffin act — an act of Congress (1959) outlawing secondary boycotts, requiring public disclosure of the financial records of unions, and guaranteeing the use of secret ballots in union voting.
- leading aircraftman — the rank above aircraftman
- licensing agreement — an agreement that sets out the fees and terms of use for something available only under licence
- locomotive engineer — engineer (def 3).
- logical unit number — (storage) (LUN) A 3-bit identifier used on a SCSI bus to distinguish between up to eight devices (logical units) with the same SCSI ID.
- magnesium carbonate — a white powder, MgCO 3 , insoluble in water and alcohol, soluble in acids, used in dentifrices and cosmetics, in medicine as an antacid, and as a refractory material.
- magnetic hysteresis — hysteresis in a ferromagnetic material; the lag in the response of magnetic induction to changes of magnetic intensity.
- 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.
- magnetohydrodynamic — Of or pertaining to magnetohydrodynamics.
- magnetomotive force — a scalar quantity that is a measure of the sources of magnetic flux in a magnetic circuit. Abbreviation: mmf.
- malice aforethought — a predetermination to commit an unlawful act without just cause or provocation (applied chiefly to cases of first-degree murder).
- manchester encoding — (communications, protocol) A method of transmitting bits which enables the receiver to easily synchronise with the sender. A simple way of signalling bits might be to transmit a high voltage for some period for a 1-bit and a low voltage for a 0 bit: Bits Sent: 1 1 0 0 Signal: High ___ Low |___ Time: -> . . . . . However, when several identical bits are sent in succession, this provides no information to the receiver about when each bit starts and stops. Manchester encoding splits each bit period into two, and ensures that there is always a transition between the signal levels in the middle of each bit. This allows the receiver to synchronise with the sender. In normal Manchester encoding, a 1-bit is transmitted with a high voltage in the first period, and a low voltage in the second, and vice verse for the 0 bit: Bits Sent: 1 1 0 0 Signal: High Low || |_| || Time: -> . ' . ' . ' . ' . In Differential Manchester encoding, a 1-bit is indicated by making the first half of the signal equal to the last half of the previous bit's signal and a 0-bit is indicated by making the first half of the signal opposite to the last half of the previous bit's signal. That is, a zero bit is indicated by a transition at the beginning of the bit. Like normal Manchester encoding, there is always a transition in the middle of the transmission of the bit. Differential Manchester Encoding Bits Sent: 1 1 0 0 Signal: High __ Low |_| || || Time: -> . ' . ' . ' . ' . With each bit period half as long, twice as much bandwidth is required when using either of the Manchester encoding schemes.
- manufacturing plant — factory
- mechanical-engineer — the branch of engineering dealing with the design and production of machinery.
- 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.
- micromesh stockings — stockings made from a material consisting of a fine mesh
- molecular biologist — a specialist in the study of biological phenomena at the molecular level
- 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.
- 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.
- paumotu archipelago — Tuamotu Archipelago.
- performance figures — the statistics that indicate how well or badly a company or organization has performed
- photographic memory — total recall
- pilgrimage of grace — a rebellion in 1536 in N England against the Reformation and Henry VIII's government
- pneumogastric nerve — the vagus nerve.
- proctosigmoidoscope — sigmoidoscope.
- proctosigmoidoscopy — sigmoidoscopy.
- programmer's switch — (hardware) A button on the front of some Apple Macintosh computers which, when pressed, causes a command line prompt to appear. This gives access to the built-in mini-debugger, which has commands to dump memory, return to the application that was broken out, and others. A more sophisticated debugger must be installed in order to inspect breakpoints, etc.
- projective geometry — the geometric study of projective properties.
- radiochromatography — chromatography in which radiolabeled substances on the chromatogram are determined quantitatively or qualitatively by measuring their radioactivity.
- recording equipment — devices used for sound reproduction
- releasing mechanism — a hypothetical control complex in the central nervous system of animals that triggers the appropriate behavioral response to a releaser.