16-letter words containing p, o, r
- project planning — project management
- projected window — a casement window in which the inner end of the sash slides along a track on the sill as the sash swings outward.
- projection booth — a soundproof compartment in a theater where a motion-picture projector is housed and from which the picture is projected on the screen.
- projection paper — sensitized paper for recording a projected image.
- projection print — a print made by the projection of an image onto sensitized paper.
- projective plane — (mathematics) The space of equivalence classes of vectors under non-zero scalar multiplication. Elements are sets of the form {kv: k != 0, k scalar, v != O, v a vector} where O is the origin. v is a representative member of this equivalence class. The projective plane of a vector space is the collection of its 1-dimensional subspaces. The properties of the vector space induce a topology and notions of smoothness on the projective plane. A projective plane is in no meaningful sense a plane and would therefore be (but isn't) better described as a "projective space".
- prolonged-action — sustained-release.
- prometheus bound — a tragedy (c457 b.c.) by Aeschylus.
- promiscuous mode — (networking) Where a node on a network accepts all packets, regardless of their destination address.
- promotional code — A promotional code is a code offered by retailers to customers who can use it to receive a discounted price when buying products online.
- proof of concept — the stage during the development of a product when it is established that the product will function as intended
- proof of postage — a document, such as a receipt, etc, that proves that you have posted or mailed something
- proper adjective — an adjective formed from a proper noun, as American from America.
- property company — a business that makes money by buying, selling, and renting out land and houses
- prophylactically — defending or protecting from disease or infection, as a drug.
- proposal writing — Extension of Fortran for proposal writing.
- proprietary name — a name of a product or service that is protected by a patent, copyright, or trademark and cannot be used by another party for commercial purposes without permission of the registered owner or licensee.
- propylene glycol — a colorless, viscous, hygroscopic liquid, C 3 H 8 O, used chiefly as a lubricant, as an antifreeze, as a heat transfer fluid, and as a solvent for fats, oils, waxes, and resins.
- 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.
- prosecco plotter — one of a group of Labour politicians who allegedly plotted to oust Prime Minister Gordon Brown from office in the summer of 2008
- prosecution case — the case brought against someone by a legal authority
- proslambanomenos — the lowest note of the scale in ancient Greek music
- prospect heights — a town in N Illinois.
- prosthetic group — the nonprotein acid constituent of a conjugate protein, as the heme group of hemoglobin.
- protection money — law: criminal fee
- protection order — a legal instruction by a court directing a person not to harm or harass a particular individual
- protection ratio — the minimum acceptable ratio between the amplitudes of a wanted radio or television broadcast signal and any interfering signal
- protective slope — a slope given to a yard or the like to drain surface water away from a building.
- protestant ethic — work ethic.
- proteus syndrome — a condition caused by malfunction in cell growth, in which bone and flesh tissue overgrow in localized areas of the body
- proto-algonquian — the unattested parent language from which the Algonquian languages are descended.
- provost sergeant — the senior noncommissioned officer of a prison or other confinement facility whose chief duty is the supervision of prisoners and of the military police unit.
- 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.
- proxime accessit — the person coming next after the winner in a competitive examination or an academic prize giving; runner-up
- pseudo-isidorian — of or relating to the collection of documents of the 9th century a.d. that consist chiefly of the Decretals, attributed to Isidore, archbishop of Seville, a.d. 600–36, and that were rejected as spurious in the 15th century.
- 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-religious — of, relating to, or concerned with religion: a religious holiday.
- 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.
- pseudoparenchyma — (in certain fungi and red algae) a compact mass of tissue, made up of interwoven hyphae or filaments, that superficially resembles plant tissue.
- pseudoperipteral — having a freestanding colonnade at each end, with engaged columns at the sides.
- psychogeriatrics — the psychology of old age.
- public ownership — ownership by the state; nationalization
- 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
- pullorum disease — a highly contagious, frequently fatal disease of young poultry caused by the bacterium Salmonella gallinarum (pullorum), transmitted by the infected hen during egg production, and characterized by weakness, loss of appetite, and diarrhea.
- pulmonary artery — an artery conveying venous blood from the right ventricle of the heart to the lungs.
- punctuation mark — any of a group of conventional marks or characters used in punctuation, as the period, comma, semicolon, question mark, or dash.
- purchasing power — Also called buying power. the ability to purchase goods and services.