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19-letter words containing a, p, r, e

  • first-past-the-post — A first-past-the-post system for choosing members of parliament or other representatives is one in which the candidate who gets most votes wins.
  • flowering raspberry — a shrub, Rubus ordoratus, of eastern North America, having loose clusters of showy purplish or rose-purple flowers and inedible, dry, red fruit.
  • fluoride toothpaste — toothpaste containing a small amount of fluoride as protection against tooth decay
  • focal plane shutter — an opaque shield in a camera, lying in the focal plane of the lens, that, when tripped, admits light to expose the film or plate for a predetermined period, usually a fraction of a second
  • focal-plane shutter — a camera shutter situated directly in front of the film.
  • forensic psychiatry — the use of psychiatric knowledge and techniques in questions of law, as in determining legal insanity.
  • fractal compression — (algorithm)   A technique for encoding images using fractals.
  • free alongside ship — (of a shipment of goods) delivered to the dock without charge to the buyer, but excluding the cost of loading onto the vessel
  • freezer compartment — in a refrigerator, an enclosed area kept at a temperature low enough to store frozen foods or freeze non-frozen foods
  • gedanken experiment — thought experiment.
  • general partnership — a partnership in which each of the partners is fully liable for the firm's debts.
  • general post office — (in the U.S. postal system) the main post office of a city, county, etc., that also has branch post offices. Abbreviation: G.P.O., GPO.
  • generic programming — (programming)   A programming technique which aims to make programs more adaptable by making them more general. Generic programs often embody non-traditional kinds of polymorphism; ordinary programs are obtained from them by suitably instantiating their parameters. In contrast with normal programs, the parameters of a generic programs are often quite rich in structure. For example they may be other programs, types or type constructors or even programming paradigms.
  • 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.
  • germander speedwell — a speedwell, Veronica chamaedrys, having blue flowers.
  • get one's dander up — to become or to cause someone to become annoyed or angry
  • 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
  • go on a/the rampage — If people go on a rampage, they rush around in a wild or violent way, causing damage or destruction.
  • 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.
  • grasshopper sparrow — a brown and white North American sparrow, Ammodramus savannarum, having a buffy breast and a buzzing insectlike song.
  • grasshopper warbler — a Eurasian warbler Locustella naevia
  • 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
  • grocer's apostrophe — an apostrophe placed before a final s intended to indicate the plural but in fact forming the possessive
  • grosse pointe farms — 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
  • hamiltonian problem — (computability)   (Or "Hamilton's problem") A problem in graph theory posed by William Hamilton: given a graph, is there a path through the graph which visits each vertex precisely once (a "Hamiltonian path")? Is there a Hamiltonian path which ends up where it started (a "Hamiltonian cycle" or "Hamiltonian tour")? Hamilton's problem is NP-complete. It has numerous applications, sometimes completely unexpected, in computing.
  • harbinger-of-spring — a North American umbelliferous herb, Erigenia bulbosa, having white flowers that bloom early in the spring.
  • have a problem with — to be unable to understand or do
  • health professional — a person trained to work in any field of physical or mental health.
  • hepatic portal vein — a vein connecting two capillary networks in the liver
  • hepatoportal system — a vascular arrangement in vertebrates through which blood is transported into the liver from capillaries of the stomach, spleen, duodenum, pancreas, and intestines.
  • heptachlorobiphenyl — (organic compound) Either of twenty-four isomers of the polychlorinated biphenyl containing seven chlorine atoms.
  • hexafluoroplatinate — (chemistry) The univalent anion PtF6- prepared by reacting platinum hexafluoride with certain metals or other elements.
  • high-pressure steam — High-pressure steam is steam which is at or above 75 pounds per square inch gauge pressure.
  • highways department — the department of a state, council, etc, responsible for the upkeep of roads and highways
  • historic episcopate — the derivation of the episcopate of a Church in historic succession from the apostles
  • horseshoe whipsnake — a long slender fast-moving nonvenomous snake, Coluber hippocrepis, of Eurasia
  • hydropneumatization — utilization of air pressure in the housing of a water turbine to keep the level of water that has been used from rising to interfere with the rotor blades.
  • hyper-nationalistic — a person devoted to nationalism.
  • hyperbolic cosecant — a hyperbolic function that is the reciprocal of hyperbolic sine
  • hypercholesteraemia — (medicine) An abnormally high level of cholesterol in the blood.
  • hyperfocal distance — the distance, at a given f number, between a camera lens and the nearest point (hyperfocal point) having satisfactory definition when focused at infinity.
  • hyperparathyroidism — overactivity of the parathyroid gland, characterized by softening of the bones, with consequent pain, tenderness, and a tendency to spontaneous fractures, and by muscular weakness and abdominal cramps.
  • hyperphosphorylated — Simple past tense and past participle of hyperphosphorylate.
  • hypocholesterolemia — an abnormally low amount of cholesterol in the blood.
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