23-letter words containing r, o, s
- orthodox eastern church — Eastern Orthodox Church
- orthostatic hypotension — Medicine/Medical. a fall in blood pressure associated with an upright position, usually occurring as a result of standing still for a long time or rising from a prolonged stay in bed and often causing faintness, dizziness, and vision disturbances.
- osteogenesis imperfecta — a rare hereditary disease in which abnormal connective tissue development leads to fragile bones subject to fracture.
- out of a clear blue sky — the region of the clouds or the upper air; the upper atmosphere of the earth: airplanes in the sky; cloudy skies.
- out-of-court settlement — a resolution of a legal dispute which takes place outside of a court proceeding or before the court comes to a final decision
- pan-africanist congress — a South African liberation movement founded in 1959, now a political party known as the Pan-Africanist Congress of Azania
- parametric polymorphism — Polymorphism was first identified by Christopher Strachey in 1967 and developed by Hindley and Milner. For example we could specify that the argument of the "head" function was a list without specifying a type for the elements of the list. In Haskell we would write: head :: [a] -> a meaning head has type function from "list of a" to "a" where "a" is a type variable). This is known as parametric polymorphism. Polymorphic typing allows strong type checking as well as generic functions. ML in 1976 was the first language with polymorphic typing. See also generic type variable.
- parasexual reproduction — reproduction by recombination of genes from genetically dissimilar nuclei within binucleate or multinucleate cells, as in filamentous fungi.
- parkinson's law of data — "Data expands to fill the space available for storage"; buying more memory encourages the use of more memory-intensive techniques. It has been observed over the last 10 years that the memory usage of evolving systems tends to double roughly once every 18 months. Fortunately, memory density available for constant dollars also tends to double about once every 12 months (see Moore's Law); unfortunately, the laws of physics guarantee that the latter cannot continue indefinitely.
- participant observation — a technique of field research, used in anthropology and sociology, by which an investigator (participant observer) studies the life of a group by sharing in its activities.
- pay one's last respects — If you pay your last respects to someone who has just died, you show your respect or affection for them by coming to see their body or their grave.
- perceived noise decibel — a unit for measuring perceived levels of noise by comparison with the sound pressure level of a reference sound judged equally noisy by a normal listener
- percentage distribution — a frequency distribution is which individual frequencies are shown as a percentage of the total frequencies
- peroxymonosulfuric acid — persulfuric acid (def 1).
- pest control department — the local government department responsible for controlling such pests as rats and mice
- pharmaceuticals company — a company specialising in developing and marketing pharmaceuticals
- photoelectric threshold — the minimum frequency or maximum wavelength of incident radiation necessary to release photons from a given surface.
- physical memory address — physical address
- pin someone's ears back — the organ of hearing and equilibrium in vertebrates, in humans consisting of an external ear that gathers sound vibrations, a middle ear in which the vibrations resonate against the tympanic membrane, and a fluid-filled internal ear that maintains balance and that conducts the tympanic vibrations to the auditory nerve, which transmits them as impulses to the brain.
- pithecanthropus erectus — Java man
- plan position indicator — a radarscope on which an object reflecting radar waves shows its bearing and distance from the radar detector by causing a spot of light to appear on a screen that represents a map of the area around the detector. Abbreviation: PPI.
- political incorrectness — Political incorrectness is the attitude or policy shown by someone who does not care if they offend or upset any group of people in society who have a disadvantage, or who have been treated differently because of their sex, race, or disability.
- positive discrimination — special opportunities
- postcode discrimination — discrimination on the basis of the area where someone lives, with relation to employment, credit rating, etc
- potassium acid tartrate — cream of tartar.
- presidential government — a system of government in which the powers of the president are constitutionally separate from those of the legislature.
- price escalation clause — a clause in a contract allowing the seller to raise prices if the cost of inputs increases
- printer access protocol — (networking, protocol, printer) (PAP) A protocol used in Mac OS Appletalk to provide bi-directional communication between PostScript printers and the client computer.
- probabilistic automaton — nondeterministic automaton
- process gas compression — Process gas compression is a procedure for pressurizing and circulating gas through a process by compressing it in a cylinder, to enhance conditions for chemical reaction.
- process hazard analysis — Process hazard analysis is calculating what might be a hazard in a process, how likely it is to happen, and what should be done if someone or something is exposed to this hazard.
- process intensification — Process intensification is a change made to a process to make it work in a smaller volume for the same performance.
- professional misconduct — a violation of the rules or boundaries set by the governing body of a profession
- profit and loss account — income account (def 2).
- program design language — Any of a large class of formal and profoundly useless pseudo-languages in which management forces one to design programs. Too often, management expects PDL descriptions to be maintained in parallel with the code, imposing massive overhead of little or no benefit. See also flow chart.
- progressive cavity pump — A progressive cavity pump is a pump with an electric motor that rotates rods to make fluid in cavities move upward.
- psychomotor retardation — a generalized slowing of psychological and physical activity, frequently occurring as a symptom of severe depression.
- public sector borrowing — government borrowing to fund the public sector
- put one's finger on sth — If you put your finger on something, for example a reason or problem, you see and identify exactly what it is.
- put the record straight — to correct an error or misunderstanding
- put through one's paces — a rate of movement, especially in stepping, walking, etc.: to walk at a brisk pace of five miles an hour.
- quantum electrodynamics — the quantum field theory that deals with the electromagnetic field and its interaction with electrons and positrons. Abbreviation: QED.
- quantum flavourdynamics — a gauge theory of the electromagnetic and weak interactions
- quay financial software — CSK Software
- queen charlotte islands — a group of about 150 islands off the W coast of Canada: part of British Columbia. Pop: about 6000 (latest est). Area: 9596 sq km (3705 sq miles)
- queenborough in sheppey — a town in SE England, in Kent: formed in 1968 by the amalgamation of Queenborough, Sheerness, and Sheppey. Pop: 3471 (2001)
- quod erat demonstrandum — (at the conclusion of a proof, esp of a theorem in Euclidean geometry) which was to be proved
- quota share reinsurance — Quota share reinsurance is a form of reinsurance in which the reinsurer accepts a certain percentage of all or certain parts of the business of the reinsured person or company.
- quote chapter and verse — [by analogy with the mainstream phrase] To cite a relevant excerpt from an appropriate bible. "I don't care if "rn" gets it wrong; "Followup-To: poster" is explicitly permitted by RFC 1036. I'll quote chapter and verse if you don't believe me." See also legalese, language lawyer, RTFS (sense 2).
- rank outsider/outsiders — If one of the people in a competition is described as a rank outsider, they are considered to have very little chance of winning.