16-letter words containing p, r, o, t, i, u
- perpetual motion — the motion of a theoretical mechanism that, without any losses due to friction or other forms of dissipation of energy, would continue to operate indefinitely at the same rate without any external energy being applied to it.
- personal tuition — private tuition
- personality cult — deliberately cultivated adulation of a person, esp a political leader
- phosphor fatigue — screen saver
- photoautotrophic — any organism that derives its energy for food synthesis from light and is capable of using carbon dioxide as its principal source of carbon.
- phytosuccivorous — feeding on sap, as certain sucking insects.
- picture moulding — the edge around a framed picture
- picture postcard — postcard (def 1).
- pilot production — sth produced on a trial basis
- pneumatic trough — a trough filled with liquid, especially water, for collecting gases in bell jars or the like by displacement.
- poitou-charentes — a region of W central France, on the Bay of Biscay: mainly low-lying
- port authorities — the body with overall responsibility for a port
- portuguese india — a former Portuguese overseas territory on the W coast of India, consisting of the districts of Gôa, Daman, and Diu: annexed by India December 1961. Capital: Gôa.
- portuguese timor — former (1914-75) Portuguese territory in the Malay Archipelago
- postremogeniture — a system of inheritance under which the estate of a deceased person goes to his youngest son. Also called ultimogeniture. Compare primogeniture (def 2).
- pourriture noble — noble rot.
- powerfully built — (of a person, esp a man) big and physically strong, with large muscles
- praetorian guard — the bodyguard of a military commander, especially the imperial guard stationed in Rome.
- pre-subscription — a sum of money given or pledged as a contribution, payment, investment, etc.
- prerevolutionary — of, pertaining to, characterized by, or of the nature of a revolution, or a sudden, complete, or marked change: a revolutionary junta.
- print journalism — journalism as practiced in newspapers and magazines.
- process industry — business of treating raw materials
- production costs — the costs used in manufacturing a product
- project guardian — (project, security) A project which grew out of the ARPA support for Multics and the sale of Multics systems to the US Air Force. The USAF wanted a system that could be used to handle more than one security classification of data at a time. They contracted with Honeywell and MITRE Corporation to figure out how to do this. Project Guardian led to the creation of the Access Isolation Mechanism, the forerunner of the B2 labeling and star property support in Multics. The DoD Orange Book was influenced by the experience in building secure systems gained in Project Guardian.
- propylthiouracil — a white crystalline compound, C 7 H 1 0 N 2 OS, that interferes with the synthesis of thyroid hormone by the thyroid gland: used in the treatment of hyperthyroidism.
- prosecution case — the case brought against someone by a legal authority
- prosthetic group — the nonprotein acid constituent of a conjugate protein, as the heme group of hemoglobin.
- proto-algonquian — the unattested parent language from which the Algonquian languages are descended.
- proxima centauri — the nearest star to the sun at a distance of 4.3 light-years, part of the Alpha Centauri triple-star system located in the constellation Centaurus.
- pseudo-patriotic — of, like, suitable for, or characteristic of a patriot.
- pseudo-realistic — interested in, concerned with, or based on what is real or practical: a realistic estimate of costs; a realistic planner.
- pseudo-spiritual — of, relating to, or consisting of spirit; incorporeal.
- pseudohistorical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- pseudoperipteral — having a freestanding colonnade at each end, with engaged columns at the sides.
- public relations — (used with a plural verb) the actions of a corporation, store, government, individual, etc., in promoting goodwill between itself and the public, the community, employees, customers, etc.
- public transport — fare-paying travel
- punctuation mark — any of a group of conventional marks or characters used in punctuation, as the period, comma, semicolon, question mark, or dash.
- put one's oar in — to interfere or interrupt
- pyroconductivity — conductivity brought about by the application of heat, especially in solids that are not conductors at normal temperatures.
- reconceptualized — to form into a concept; make a concept of.
- redemption value — the price at which the issuing company may choose to repurchase a security before its maturity date
- relative pronoun — one of the pronouns who, whom, which, what, their compounds with -ever or -soever, or that used as the subordinating word to introduce a subordinate clause, especially such a pronoun referring to an antecedent.
- reporting clause — A reporting clause is a clause which indicates that you are talking about what someone said or thought. For example, in 'She said that she was hungry', 'She said' is a reporting clause.
- repressurization — the process or act of pressurizing.
- rooting compound — a substance, usually a powder, containing auxins in which plant cuttings are dipped in order to promote root growth
- run-time support — run-time system
- saturation point — the point at which a substance will receive no more of another substance in solution, chemical combination, etc.
- shutter priority — of or relating to a semiautomatic exposure system in which the photographer presets the shutter speed and the camera selects the aperture.
- shutter-priority — of or relating to a semiautomatic exposure system in which the photographer presets the shutter speed and the camera selects the aperture.
- sodium perborate — a white, crystalline, water-soluble solid, NaBO 2 ⋅3H 2 O or NaBO 3 ⋅4H 2 O, used chiefly as a bleaching agent and antiseptic.