18-letter words containing o, p, r, t, u, n
- perfect continuous — perfect progressive.
- perlocutionary act — the action of affecting someone by uttering certain words
- 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.
- piperonyl butoxide — a light-brown liquid, C 1 9 H 3 0 O 5 , used chiefly as a synergist in certain insecticides.
- pitch-and-run shot — chip shot.
- pneumatic conveyor — a tube through which powdered or granular material, such as cement, grain, etc is transported by a flow of air
- point of departure — Nautical. the precise location of a vessel, established in order to set a course, especially in beginning a voyage in open water.
- point of no return — Aviation. the point in a flight at which an aircraft will lack sufficient fuel to return to its starting point.
- population control — a policy of attempting to limit the growth in numbers of a population, esp in poor or densely populated parts of the world, by programmes of contraception or sterilization
- population figures — population totals; statistics relating to the size of populations
- population pyramid — a graph showing the distribution of a population by sex, age, etc.
- porcupine anteater — an echidna or spiny anteater.
- 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.
- portal circulation — blood flow in a portal system.
- portuguese guinean — of or relating to Portuguese Guinea, a former name for Guinea-Bissau, or its inhabitants
- post-revolutionary — of, pertaining to, characterized by, or of the nature of a revolution, or a sudden, complete, or marked change: a revolutionary junta.
- potassium myronate — sinigrin.
- pour cold water on — If someone pours cold water on a plan or idea, they criticize it so much that people lose their enthusiasm for it.
- precious moonstone — moonstone (def 1).
- predation pressure — the effect of predation upon a population, resulting in the decrease in size of that population.
- prepare the ground — make conditions ready
- present continuous — a verb form consisting of an auxiliary be in the present tense followed by a present participle and used especially to indicate that a present action or event is in progress, being repeated, or of a temporary nature or to express the future.
- 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.
- presuppositionless — to suppose or assume beforehand; take for granted in advance.
- priority interrupt — (jargon) Any stimulus compelling enough to yank one right out of hack mode. Classically used to describe being dragged away by an SO for immediate sex, but may also refer to more mundane interruptions such as a fire alarm going off in the near vicinity. Also called an NMI (non-maskable interrupt), especially in PC-land.
- prison authorities — the people in charge of running a prison
- prison rustic work — rustication having a deeply pitted surface.
- procrustean string — (programming) A fixed-length string. If a string value is too long for the allocated space, it is truncated to fit; and if it is shorter, the empty space is padded, usually with space characters. This is an allusion to Procrustes, a legendary robber of ancient Attica. He bound his victims to a bed, and if they were shorter than the bed, he stretched their limbs until they would fit; if their limbs were longer, he lopped them off.
- product acceptance — the verification or acceptance that a manufactured item meets required specifications or standards and is usable for its purpose
- production company — an organization which produces, films, plays, television or radio programmes
- production control — the planning and supervision of manufacturing activities to ensure that goods will be produced on time at the lowest possible cost.
- production manager — a supervisor of the budget, crew and other details in the production of a film or play
- productivity bonus — an extra payment made to workers for being more productive or yielding more favourable results than normal
- prometheus unbound — a drama in verse (1820) by Shelley.
- property insurance — insurance coverage for land and housing
- protocol data unit — (PDU) A packet of data passed across a network. The term implies a specific layer of the OSI seven layer model and a specific protocol.
- pseudo-anarchistic — a person who advocates or believes in anarchy or anarchism.
- public corporation — a corporation, owned and operated by a government, established for the administration of certain public programs.
- puerto rico trench — a depression in the ocean floor, N of Puerto Rico: includes deepest part of Atlantic Ocean, 28,374 feet (8648 meters).
- pulmonic airstream — a current of lung air set in motion by the respiratory muscles in the production of speech.
- puss in the corner — a parlor game for children in which one player in the middle of a room tries to occupy any of the positions along the walls that become vacant as other players dash across to exchange places at a signal.
- put one's shirt on — to bet all one has on (a horse, etc)
- put the mockers on — stop, thwart
- put your foot down — If someone puts their foot down, they use their authority in order to stop something happening.
- quartz-iodine lamp — a type of tungsten-halogen lamp containing small amounts of iodine and having a quartz envelope, operating at high temperature and producing an intense light for use in car headlamps, etc
- radiation exposure — exposure to radiant energy or to the particles emitted in the transfer of radiant energy, esp the particles and gamma rays emitted in nuclear decay; exposure to radioactive substances
- radiation pressure — the pressure exerted on a surface by electromagnetic radiation or by sound waves.
- reciprocating pump — A reciprocating pump is a pump which uses a backward and forward movement to move a fluid.
- reproduction proof — repro proof.
- resurrection plant — a desert plant, Selaginella lepidophylla, occurring from Texas to South America, having stems that curl inward when dry.