18-letter words containing p, u, r, s, a
- gum digger's spear — a long steel probe used by gum diggers digging for kauri gum
- human rights group — a group that campaigns for human rights
- hungry programmers — (body) A group of programmers producing free software.
- hypersexualisation — Alternative spelling of hypersexualization.
- hypersexualization — The act or process of hypersexualizing.
- hyposulfurous acid — an acid, H 2 S 2 O 4 , next in a series below sulfurous acid, known only in solution or in the form of its salts.
- industrial dispute — disagreement between workers and managers
- inner automorphism — an automorphism that maps an element x into an element of the form axa −1 where a −1 is the inverse of a.
- iron (ii) sulphate — an iron salt with a saline taste, usually obtained as greenish crystals of the heptahydrate, which are converted to the white monohydrate above 100°C: used in inks, tanning, water purification, and in the treatment of anaemia. Formula: FeSO4
- justice department — the United States federal department for enforcing federal laws
- krause's corpuscle — any of numerous encapsulated nerve endings occurring in the skin and mucous membranes, functioning as sensory cold receptors.
- lenticular process — a method for producing images with a three-dimensional effect by photographing on lenticulated film.
- louisiana purchase — a treaty signed with France in 1803 by which the U.S. purchased for $15,000,000 the land extending from the Mississippi River to the Rocky Mountains and from Canada to the Gulf of Mexico.
- lubber grasshopper — plains grasshopper.
- magnesium peroxide — a white, tasteless, water-insoluble powder, MgO 2 , used as an antiseptic and as an oxidizing and bleaching agent.
- many happy returns — When it is someone's birthday, people sometimes say 'Many happy returns' to them as a way of greeting them.
- marsilius of padua — c1280–1343? Italian scholar and political theorist.
- 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.
- mucopolysaccharide — (formerly) glycosaminoglycan.
- muscular dystrophy — a hereditary disease characterized by gradual wasting of the muscles with replacement by scar tissue and fat, sometimes also affecting the heart.
- natural philosophy — natural science.
- nebular hypothesis — the theory that the solar system evolved from a mass of nebular matter: prominent in the 19th century following its precise formulation by Laplace.
- neuroleptanalgesia — a semiconscious nonreactive state induced by certain drug combinations, as fentanyl with droperidol.
- neurophysiological — the branch of physiology dealing with the functions of the nervous system.
- neuropsychodynamic — Of or pertaining to neuropsychodynamics.
- neuropsychological — Of or pertaining to neuropsychology, the relation or combination of brain and mind.
- nonpartisan league — a political organization of farmers, founded in North Dakota in 1915, and extending to many states west of the Mississippi, with the aim of influencing agricultural legislation in state legislatures.
- north truchas peak — a mountain in N New Mexico, near Santa Fe: one of the three Truchas Peaks. 13,110 feet (3999 meters).
- nurse practitioner — a registered nurse who has received special training for diagnosing and treating routine or minor ailments. Abbreviation: NP.
- nurse-practitioner — a registered nurse who has received special training for diagnosing and treating routine or minor ailments. Abbreviation: NP.
- open heart surgery — surgery performed on the exposed heart while a heart-lung machine pumps and oxygenates the blood and diverts it from the heart.
- open-heart surgery — surgery performed on the exposed heart while a heart-lung machine pumps and oxygenates the blood and diverts it from the heart.
- optical soundtrack — the final soundtrack on a motion picture, which appears as a band of black and white serrations along a strip of film to the left of the composite print. Light is shined through the serrations and is converted to audible sound.
- outer automorphism — an automorphism that is not an inner automorphism.
- overpressurization — pressure in excess of normal atmospheric pressure, as that caused by an explosion's shock wave or created in an accelerating airplane.
- ox-tongue partisan — a shafted weapon having a long, wide, tapering blade.
- pacinian corpuscle — (sometimes lowercase) a microscopic, onionlike body consisting of layers of connective tissue wrapped around a nerve ending, located in the deep layers of skin, tendons, etc., and functioning as a sensory receptor of pressure and vibration.
- paediatric nursing — the branch of nursing concerned with the care of children
- par for the course — an equality in value or standing; a level of equality: The gains and the losses are on a par.
- pass the hat round — to collect money, as for a cause
- passing-out parade — a ceremonial parade of cadets who have completed their training
- passive vocabulary — all the words, collectively, that a person can understand
- 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
- pedal steel guitar — an oblong, floor-mounted electrified guitar, usually having ten strings, fretted with a steel bar and producing a wailing sound that is modulated by use of a foot pedal.
- 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
- per ardua ad astra — through difficulties to the stars: the motto of the RAF