15-letter words containing p, r, o, n
- pneumatotherapy — the use of compressed or rarefied air in treating disease.
- point of honour — a circumstance, event, etc, that involves the defence of one's principles, social honour, etc
- poisson's ratio — the ratio, in an elastic body under longitudinal stress, of the transverse strain to the longitudinal strain.
- police marksman — a police officer skilled in precision shooting, esp with a sniper rifle
- police presence — attendance or proximity of police officers
- polychlorinated — having multiple chlorine atoms
- polychloroprene — a chloroprene polymer
- polycrystalline — (of a rock or metal) composed of aggregates of individual crystals.
- polynomial ring — the set of all polynomials in an indeterminate variable with coefficients that are elements of a given ring.
- polysomnography — a record of a person's sleep pattern, breathing, heart activity, and limb movements during sleep. Abbreviation: PSG.
- polyunsaturated — of or noting a class of animal or vegetable fats, especially plant oils, whose molecules consist of carbon chains with many double bonds unsaturated by hydrogen atoms and that are associated with a low cholesterol content of the blood.
- polyvinyl resin — any of the class of thermoplastic resins derived by the polymerization or copolymerization of a vinyl compound: used chiefly as adhesives, sizing agents, and coatings.
- pontine marshes — an area of W Italy, southeast of Rome: formerly malarial swamps, drained in 1932–34 after numerous attempts since 160 bc had failed
- porcupine river — a river in NW Yukon Territory, Canada and NE Alaska, flowing N and W to the Yukon River. 448 miles (721 km) long.
- port washington — a town on NW Long Island, in SE New York.
- port wine stain — a large birthmark of purplish color, usually on the face or neck.
- port-wine stain — a large birthmark of purplish color, usually on the face or neck.
- portative organ — capable of being carried; portable.
- portland cement — a type of hydraulic cement usually made by burning a mixture of limestone and clay in a kiln.
- position isomer — any of two or more isomers that differ only in the position occupied by a substituent.
- post-depression — the act of depressing.
- post-experience — a particular instance of personally encountering or undergoing something: My encounter with the bear in the woods was a frightening experience.
- post-industrial — of, relating to, or characteristic of an era following industrialization: The economy of the postindustrial society is based on the provision of services rather than on the manufacture of goods.
- post-liberation — the act of liberating or the state of being liberated.
- post-parturient — bearing or about to bear young; travailing.
- post-production — In film and television, post-production is the work such as editing that takes place after the film has been shot.
- post-retirement — the act of retiring, withdrawing, or leaving; the state of being retired.
- post-revolution — an overthrow or repudiation and the thorough replacement of an established government or political system by the people governed.
- post-tridentine — of or relating to the city of Trent.
- postirradiation — occurring after or due to irradiation
- postsynchronize — to add sound, such as dubbing, to a film or video after shooting is completed
- posttransfusion — occurring after or as a result of a transfusion
- poultry farming — breeding and keeping fowl
- pound one's ear — to sleep
- powder magazine — a compartment for the storage of ammunition and explosives.
- power macintosh — Power Mac
- prairie pointer — shooting star (def 2).
- prairie-dogging — (in an open-plan office) the practice of looking over the top of one's partition in order to discover the source of or reason for a commotion
- pre-acquisition — the act of acquiring or gaining possession: the acquisition of real estate.
- pre-celebration — an act of celebrating.
- pre-concentrate — to bring or draw to a common center or point of union; converge; direct toward one point; focus: to concentrate one's attention on a problem; to concentrate the rays of the sun with a lens.
- pre-consumption — the act of consuming, as by use, decay, or destruction.
- pre-contractual — a preexisting contract that legally prevents a person from making another contract of the same nature.
- pre-deprivation — the act of depriving.
- pre-negotiation — mutual discussion and arrangement of the terms of a transaction or agreement: the negotiation of a treaty.
- pre-preparation — a proceeding, measure, or provision by which one prepares for something: preparations for a journey.
- pre-reformation — the act of reforming; state of being reformed.
- pre-romanticism — romantic spirit or tendency.
- precinct police — the police responsible for a district of a city
- precinct worker — a worker in a polling or electoral district (such as someone who mans voting, etc)