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23-letter words containing o, p, i, a, t

  • 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.
  • own occupation coverage — Own occupation coverage is insurance that covers a person if they cannot work in their own occupation, following an accident, injury, or disability.
  • painting and decorating — interior decoration
  • 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.
  • parliamentary democracy — a system of government in which people elect representatives to a parliament to make laws, for example Canada and the UK
  • partial differentiation — the process of finding one of the partial derivatives of a function of several variables.
  • 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.
  • participatory democracy — individual participation by citizens in political decisions and policies that affect their lives, especially directly rather than through elected representatives.
  • patient confidentiality — the law that a doctor or medical practitioner cannot reveal anything said to them by their patients during consultation or treatment
  • pentachloronitrobenzene — a crystalline compound, C 6 Cl 5 NO 2 , used as an herbicide and insecticide. Abbreviation: PCNB.
  • percentage distribution — a frequency distribution is which individual frequencies are shown as a percentage of the total frequencies
  • pharmaceuticals company — a company specialising in developing and marketing pharmaceuticals
  • philadelphia pepper pot — pepper pot (def 1).
  • photoelectric magnitude — the magnitude of a star determined using a photometer plus a filter to select light or other radiation of the desired wavelength
  • phyletic classification — classification of organisms based on their assumed evolutionary histories and relationships.
  • physiological phonetics — the branch of phonetics that deals with the motive processes, anatomical measurements, spirometric properties, muscle and membrane tone, and kinetic aspects of the production of speech and with related aspects of the reception of speech.
  • pithecanthropus erectus — Java man
  • plain old documentation — (text)   (pod, occasionally "POD") A simple markup language used to embed documentation, literate programming-style, in Perl programs. Pod readers and converters are part of the standard Perl distribution and the documentation provided with Perl is all in pod format.
  • 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.
  • planetesimal hypothesis — one of the small celestial bodies that, according to one theory (planetesimal hypothesis) were fused together to form the planets of the solar system.
  • play by electronic mail — (games)   A kind of game where the players use electronic mail to communicate. This may be done via a human moderator or an automatic mailing list exploder on some central machine or it may be fully distributed with each player just addressing his mail to all other players. This is a natural extension of "play by mail" games conducted via snail mail.
  • 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.
  • polybrominated biphenyl — PBB.
  • portable tool interface — (programming, standard)   (PTI) A standard such as PCTE, allowing interworking between different software tools via defined interfaces to the user and to the repository or object management system.
  • 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.
  • potassium monophosphate — any of the three orthophosphates of potassium ((potassium monophosphate) (K 2 HPO 4), (potassium diphosphate) (KH 2 PO 4), and (tripotassium phosphate) (K 3 PO 4) )
  • power factor correction — Power factor correction is the process of increasing the power factor to near unity without altering the original load.
  • precautionary principle — the precept that an action should not be taken if the consequences are uncertain and potentially dangerous
  • precipitation hardening — a process in which alloys are strengthened by the formation, in their lattice, of a fine dispersion of one component when the metal is quenched from a high temperature and aged at an intermediate temperature
  • 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
  • price out of the market — to charge so highly for as to prevent the sale, hire, etc, of
  • 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.
  • private limited company — a company whose shares can be bought by the public
  • probabilistic automaton — nondeterministic automaton
  • process intensification — Process intensification is a change made to a process to make it work in a smaller volume for the same performance.
  • product differentiation — the real or illusory distinction between competing products in a market
  • productivity bargaining — the process of reaching an agreement (productivity agreement) through collective bargaining whereby the employees of an organization agree to changes which are intended to improve productivity in return for an increase in pay or other benefits
  • 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).
  • progressive cavity pump — A progressive cavity pump is a pump with an electric motor that rotates rods to make fluid in cavities move upward.
  • provocative maintenance — [Common ironic mutation of "preventive maintenance"] Actions performed upon a machine at regularly scheduled intervals to ensure that the system remains in a usable state. So called because it is all too often performed by a field servoid who doesn't know what he is doing; such "maintenance" often *induces* problems, or otherwise results in the machine's remaining in an *un*usable state for an indeterminate amount of time. See also scratch monkey.
  • psychomotor retardation — a generalized slowing of psychological and physical activity, frequently occurring as a symptom of severe depression.
  • public-key cryptography — public-key encryption
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