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18-letter words containing p, r, e, m

  • multiple sclerosis — a chronic degenerative, often episodic disease of the central nervous system marked by patchy destruction of the myelin that surrounds and insulates nerve fibers, usually appearing in young adulthood and manifested by one or more mild to severe neural and muscular impairments, as spastic weakness in one or more limbs, local sensory losses, bladder dysfunction, or visual disturbances.
  • my lips are sealed — If you tell someone that your lips are sealed, you are promising them that you will keep a secret that they have told you.
  • myeloproliferative — (medicine) of or pertaining to the presence of an abnormal proliferation of myelopoietic cells (from bone marrow).
  • neo-pythagoreanism — a philosophical system, established in Alexandria and Rome in the second century b.c., consisting mainly of revived Pythagorean doctrines with elements of Platonism and Stoicism.
  • neurodevelopmental — Of or pertaining to the development of neurological pathways in the brain.
  • neuroophthalmology — the branch of ophthalmology that deals with the optic nerve and other nervous system structures involved in vision.
  • neuropsychodynamic — Of or pertaining to neuropsychodynamics.
  • non-impact printer — a printer that creates images without mechanically impacting the page, as an ink-jet or laser printer.
  • nonpreferentialism — of, relating to, or of the nature of preference: preferential policies.
  • normally aspirated — A normally aspirated or naturally aspirated engine breathes air at atmospheric pressure.
  • numerical aperture — a measure of the resolving power of a microscope, equal to the index of refraction of the medium in which the object is placed multiplied by the sine of the angle made with the axis by the most oblique ray entering the instrument, the resolving power increasing as the product increases. Abbreviation: N.A.
  • one's number is up — one is finished; one is ruined or about to die
  • one-banana problem — (jargon, abuse)   At computer installations where the computers have operators for routine administrivia, the programmers and hardware people tend to look down on the operators and claim that a trained monkey could do their job. The incentives offered to said monkeys would then describe the difficulty of a task. A one-banana problem is simple; hence, "It's only a one-banana job at the most; what's taking them so long?" See also Infinite-Monkey Theorem.
  • operations manager — business director
  • optical microscope — traditional magnifying instrument
  • outer automorphism — an automorphism that is not an inner automorphism.
  • outreach programme — a programme designed to help and encourage disadvantaged members of the community
  • palm beach gardens — a city in SE Florida, near North Palm Beach.
  • palmer archipelago — a group of islands in the South Atlantic Ocean, off the NW coast of the Antarctic Peninsula.
  • pan american union — a former organization of American republics dedicated to furthering understanding and peace: replaced in 1970 by the secretariat of the Organization of American States.
  • parachute regiment — an airborne regiment of an army
  • parallel computing — parallel processing
  • parallel importing — the importing of certain goods, esp pharmaceutical drugs, by dealers who undersell local manufacturers
  • parallelogram rule — a rule for finding the resultant of two vectors by constructing a parallelogram with two adjacent sides representing the magnitudes and directions of the vectors, the diagonal through the point of intersection of the vectors representing their resultant
  • parliamentarianism — advocacy of a parliamentary system of government.
  • particeps criminis — an accomplice in a crime.
  • particulate matter — Particulate matter is solid or liquid particles in the air, which are measured in PM-10 units and are particles with a diameter of ten micrometers or less.
  • pathname separator — (file system)   The character used to separate elements of a path or pathname. Under Unix and POSIX.1 compliant systems the pathname separator is the (forward) slash, in MS-DOS backslash serves the same purpose. For obvious reasons the no directory or file name can contain this character.
  • payment by results — a system of wage payment whereby all or part of the wage varies systematically according to the level of work performance of an employee
  • pci mezzanine card — (hardware)   (PMC) A family of low profile mezzanine cards for VMEbus, Futurebus+, desktop computers and other computer systems with logical and electrical layers based on the Peripheral Component Interconnect (PCI) specification. PMC is defined in IEEE P1386.1 and follows the Common Mezzanine Card (CMC) mechanical specification. PCI2.0 defines a 4.2 inch by 12.3 inch board that plugs perpendicularly into a mother board.
  • pemphigus vulgaris — a potentially fatal blistering skin disease, characterized by large blisters on the skin, mucous membranes of the mouth, genitals, intestines, etc, which eventually rupture and form painful denuded areas from which critical amounts of bodily protein, fluid, and blood may be lost
  • people's democracy — (in Communist ideology) a country or form of government in transition from bourgeois democracy to socialism. In this stage there is more than one class, the largest being the proletariat, led by the Communist Party, which is therefore the dominant power
  • peppermint camphor — menthol.
  • perceptual mapping — the use of a graph or map in the development of a new product, in which the proximity of consumers' images of the new product to those of an ideal product provide an indication of the new product's likely success
  • performance artist — an artist that is involved in a theatrical presentation that incorporates various art forms, such as dance, sculpture, music, etc
  • permanent hardness — hardness of water that cannot be removed by boiling as it results mainly from the presence of calcium and magnesium chlorides and sulphates
  • permanent resident — an immigrant who has been given official residential status, often prior to being granted citizenship
  • pernicious anaemia — Pernicious anaemia is a very severe blood disease.
  • personal exemption — Your personal exemption is the amount of money that is deducted from your gross income before you have to start paying income tax.
  • petroleum engineer — A petroleum engineer is an engineer who is involved in most stages of oil and gas field evaluation, development, and production, whose job is to maximize hydrocarbon recovery and reduce costs and environmental impact.
  • photoisomerization — isomerization induced by light.
  • photomorphogenesis — plant development that is controlled by light.
  • physical chemistry — the branch of chemistry dealing with the relations between the physical properties of substances and their chemical composition and transformations.
  • pilgrim's progress — an allegory (1678) by John Bunyan.
  • pitt-rivers museum — a museum in Oxford that houses a major anthropological collection of tools and weapons assembled by Augustus Henry Lane Fox Pitt-Rivers
  • plane trigonometry — the branch of trigonometry dealing with plane triangles.
  • plumber's merchant — a shop or business that sells things needed for the job of installing and repairing pipes, fixtures, etc, for water, drainage, and gas
  • pneumatic conveyor — a tube through which powdered or granular material, such as cement, grain, etc is transported by a flow of air
  • pollen mother cell — one of the mother cells that produce four microspores by meiosis.
  • polystyrene cement — a purpose-made adhesive for fixing rigid polystyrene
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