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

  • many happy returns — When it is someone's birthday, people sometimes say 'Many happy returns' to them as a way of greeting them.
  • market opportunity — a situation in which a company can meet an unsatisfied customer need before its competitors
  • mercury-vapor lamp — a lamp producing a light with a high actinic and ultraviolet content by means of an electric arc in mercury vapor.
  • mergui archipelago — a group of over 200 islands in the Andaman Sea, off the Tenasserim coast of S Myanmar: mountainous and forested
  • microencapsulation — the process of enclosing chemical substances in microcapsules.
  • microwave spectrum — a spectrum of electromagnetic radiations whose wavelengths fall in the microwave range.
  • mineral supplement — a pill containing minerals that you take to improve your health
  • miniature pinscher — one of a German breed of toy dogs resembling a smaller version of the Doberman pinscher, having a flat skull, a smooth coat, erect ears, and a docked tail, bred originally as a watchdog.
  • molecular spectrum — the spectrum of light emitted or absorbed by a species of molecule.
  • mordovian republic — a constituent republic of W central Russia, in the middle Volga basin. Capital: Saransk. Pop: 888 700 (2002). Area: 26 200 sq km (10 110 sq miles)
  • mosquito repellent — a chemical substance, such as a spray or lotion, applied to the body to prevent mosquitoes biting
  • mucopolysaccharide — (formerly) glycosaminoglycan.
  • multiflow computer — (company)   A now-defunct computer company, best known for its work in Very Long Instruction Word processors. Address: New Haven, Conn. USA.
  • multiple ownership — ownership by several people or organizations
  • 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.
  • 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.
  • 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
  • outer automorphism — an automorphism that is not an inner automorphism.
  • outreach programme — a programme designed to help and encourage disadvantaged members of the community
  • 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
  • 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
  • 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.
  • 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
  • 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
  • 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
  • pernicious anaemia — Pernicious anaemia is a very severe blood disease.
  • 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.
  • 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
  • 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
  • portable equipment — Portable equipment is electrical equipment that can easily be moved from one place to another while in operation or while connected to the supply.
  • potassium chlorate — a white or colorless, crystalline, water-soluble, poisonous solid, KClO 3 , used chiefly as an oxidizing agent in the manufacture of explosives, fireworks, matches, bleaches, and disinfectants.
  • potassium chloride — a white or colorless, crystalline, water-soluble solid, KCl, used chiefly in the manufacture of fertilizers and mineral water, and as a source of other potassium compounds.
  • potassium fluoride — a white, crystalline, hygroscopic, toxic powder, KF, used chiefly as an insecticide, a disinfectant, and in etching glass.
  • potassium myronate — sinigrin.
  • preantepenultimate — third from the end.
  • precious moonstone — moonstone (def 1).
  • pressure altimeter — an aneroid barometer adapted for measuring altitude by converting the indicated atmospheric pressure to altitude according to a standard relationship.
  • presumption of law — a presumption based upon a policy of law or a general rule and not upon the facts or evidence in an individual case.
  • primus inter pares — (of males) first among equals.
  • principal argument — the radian measure of the argument between −π and π of a complex number. Compare argument (def 8c).
  • production manager — a supervisor of the budget, crew and other details in the production of a film or play
  • programme of study — the prescribed syllabus that pupils must be taught at each key stage in the National Curriculum
  • prometheus unbound — a drama in verse (1820) by Shelley.
  • pulmonary embolism — the blockage of a pulmonary artery, often by a blood clot, that stops the flow of blood to the lungs and which can result in death if untreated
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