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19-letter words containing o, p, t, i

  • poincare conjecture — Mathematics. the question of whether a compact, simply connected three-dimensional manifold is topologically equivalent to a three-dimensional sphere.
  • point of inflection — inflection point.
  • point the finger at — to accuse or blame
  • pointe-aux-trembles — a city in S Quebec, in E Canada, N of Montreal, on the St. Lawrence.
  • police headquarters — building where police are stationed
  • police intervention — the physical involvement of police officers in an incident, esp where officers use force to control public disorder, such as a riot
  • political geography — the branch of human geography that deals with the relationship between political processes and spatial structures (regions, territories, etc)
  • political scientist — A political scientist is someone who studies, writes, or lectures about political science.
  • political-scientist — a social science dealing with political institutions and with the principles and conduct of government.
  • politically correct — marked by or adhering to a typically progressive orthodoxy on issues involving especially ethnicity, gender, sexual orientation, or ecology: The actor’s comment about unattractive women was not politically correct. The CEO feels that people who care about being politically correct are overly sensitive. Abbreviations: PC, P.C.
  • polyclonal antibody — a mixture of antibodies of different specificities, as in the serum of a person immunized to various antigens.
  • polyphonic ringtone — (in mobile phones) a ringtone in which more than one musical note is played at the same time
  • popular sovereignty — the doctrine that sovereign power is vested in the people and that those chosen to govern, as trustees of such power, must exercise it in conformity with the general will.
  • population genetics — the branch of genetics concerned with the hereditary makeup of populations.
  • population pressure — the force exerted by a growing population upon its environment, resulting in dispersal or reduction of the population.
  • port jackson willow — an Australian acacia tree, Acacia cyanophylla, introduced in the 19th century into South Africa, where it is now regarded as a pest
  • portuguese-speaking — being a speaker of Portuguese; having Portuguese as the national language
  • positional notation — a type of numeration in which the position of a digit affects its value.
  • post office problem — (algorithm)   Given a set of points (in N dimensions), find another point which minimises the sum of the distances from that point to each of the others.
  • post-and-rail fence — a fence constructed of upright wooden posts with horizontal timber slotted through it
  • post-polio syndrome — Pathology. muscle weakness occurring several decades after recovery from a polio infection, caused by fatiguing of collateral nerve axons developed during physical rehabilitation.
  • postage and packing — the cost of packing and mailing an item bought by post
  • postal savings bank — any of the savings banks formerly operated by local post offices and limited to small accounts.
  • posterior pituitary — a small, somewhat cherry-shaped double structure attached by a stalk to the base of the brain and constituting the master endocrine gland affecting all hormonal functions in the body, consisting of an anterior region ((anterior pituitary) or (adenohypophysis)) that develops embryonically from the roof of the mouth and that secretes growth hormone, LH, FSH, ACTH, TSH, and MSH, a posterior region ((posterior pituitary) or (neurohypophysis)) that develops from the back of the forebrain and that secretes the hormones vasopressin and oxytocin, and an intermediate part (pars intermedia) derived from the anterior region but joined to the posterior region, that secretes the hormone MSH in lower vertebrates.
  • postsynchronization — the process of adding sound, such as dubbing, to a film or video after shooting or videotaping is completed
  • posttranscriptional — Genetics, Biochemistry. occurring after the formation of RNA from DNA but before the RNA strand leaves the nucleus.
  • potassium bisulfate — a colorless, crystalline, water-soluble solid, KHSO 4 , used chiefly in the conversion of tartrates to bitartrates.
  • potassium carbonate — a white, granular, water-soluble powder, K 2 CO 3 , used chiefly in the manufacture of soap, glass, and potassium salts.
  • potassium hydroxide — a white, deliquescent, water-soluble solid, KOH, usually in the form of lumps, sticks, or pellets, that upon solution in water generates heat: used chiefly in the manufacture of soap, as a laboratory reagent, and as a caustic.
  • potassium phosphate — 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) )
  • preach to the choir — to express an opinion to someone who is already in agreement with it
  • predicate objective — objective complement.
  • preferential voting — a system of voting designed to permit the voter to indicate an order of preference for the candidates on the ballot.
  • preproduction model — a prototype of a product before the product goes into full-scale production
  • preproduction trial — a trial to test a prototype of a product before the product goes into full-scale production
  • prescription charge — a charge, set by the government, to be paid by a patient for medicines
  • presentation skills — the set of techniques and skills required successfully to present oral information to others
  • presumption of fact — a presumption based on experience or knowledge of the relationship between a known fact and a fact inferred from it.
  • pretty good privacy — (tool, cryptography)   (PGP) A high security RSA public-key encryption application for MS-DOS, Unix, VAX/VMS, and other computers. It was written by Philip R. Zimmermann <[email protected]> of Phil's Pretty Good(tm) Software and later augmented by a cast of thousands, especially including Hal Finney, Branko Lankester, and Peter Gutmann. PGP was distributed as "guerrilla freeware". The authors don't mind if it is distributed widely, just don't ask Philip Zimmermann to send you a copy. PGP uses a public-key encryption algorithm claimed by US patent #4,405,829. The exclusive rights to this patent are held by a California company called Public Key Partners, and you may be infringing this patent if you use PGP in the USA. This is explained in the PGP User's Guide, Volume II. PGP allows people to exchange files or messages with privacy and authentication. Privacy and authentication are provided without managing the keys associated with conventional cryptographic software. No secure channels are needed to exchange keys between users, which makes PGP much easier to use. This is because PGP is based on public-key cryptography. PGP encrypts data using the International Data Encryption Algorithm with a random session key, and uses the RSA algorithm to encrypt the session key. In December 1994 Philip Zimmermann faced prosecution for "exporting" PGP out of the United States but in January 1996 the US Goverment dropped the case. A US law prohibits the export of encryption software out of the country. Zimmermann did not do this, but the US government hoped to establish the proposition that posting an encryption program on a BBS or on the Internet constitutes exporting it - in effect, stretching export control into domestic censorship. If the government had won it would have had a chilling effect on the free flow of information on the global network, as well as on everyone's privacy from government snooping.
  • primary containment — Primary containment is the main means of preventing leaks and spills using equipment in direct content with the oil or gas being stored or transported.
  • primitive methodist — a member of a Protestant denomination (Primitive Methodist Church) founded in England in 1812 and later established in the U.S., characterized by its adherence to the basic doctrines, principles, and practices taught by John Wesley.
  • printing discussion — [XEROX PARC] A protracted, low-level, time-consuming, generally pointless discussion of something only peripherally interesting to all.
  • priority scheduling — (operating system)   Processes scheduling in which the scheduler selects tasks to run based on their priority as opposed to, say, a simple round-robin. Priorities may be static or dynamic. Static priorities are assigned at the time of creation, while dynamic priorities are based on the processes' behaviour while in the system. For example, the scheduler may favour I/O-intensive tasks so that expensive requests can be issued as early as possible. A danger of priority scheduling is starvation, in which processes with lower priorities are not given the opportunity to run. In order to avoid starvation, in preemptive scheduling, the priority of a process is gradually reduced while it is running. Eventually, the priority of the running process will no longer be the highest, and the next process will start running. This method is called aging.
  • prismatic telescope — a telescope having an eyepiece at the side or top equipped with a reflecting prism, used for taking sights at steep angles.
  • private prosecution — a prosecution started by a private individual rather than by the police
  • privatization issue — an issue of shares available for purchase by members of the public when a publicly owned organization is transferred to the private sector
  • proctosigmoidoscope — sigmoidoscope.
  • proctosigmoidoscopy — sigmoidoscopy.
  • production platform — offshore power station
  • professionalization — to give a professional character or status to; make into or establish as a profession.
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