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19-letter words containing p, a

  • photopolymerization — polymerization induced by light.
  • photoreconnaissance — reconnaissance using aerial photography.
  • photovoltaic effect — the phenomenon in which the incidence of light or other electromagnetic radiation upon the junction of two dissimilar materials, as a metal and a semiconductor, induces the generation of an electromotive force.
  • phthalocyanine blue — a pigment used in painting, derived from copper phthalocyanine and characterized chiefly by its brilliant, dark-blue color and by permanence.
  • physical addressing — (networking)   The low level addressing scheme used on Ethernet. The 48-bit destination Ethernet address in a packet is compared with the receiving node's Ethernet address. Compare IP address.
  • physical impairment — A physical impairment is a condition in which a part of a person's body is damaged or is not working properly.
  • physical sequential — (file format)   (PS, QSAM, Queued Sequential Access Method) The simplest data set on an IBM mainframe. Sequential files can only be read or written from the beginning: they do not support random access.
  • physically impaired — with reduced or weakened physical capacity
  • physician assistant — a person trained and certified to perform various medical procedures under the supervision of a physician
  • piece de resistance — the principal dish of a meal.
  • piece of the action — the process or state of acting or of being active: The machine is not in action now.
  • piggyback investing — Piggyback investing is a situation in which a broker repeats a trade on his own behalf immediately after trading for an investor, because he thinks the investor may have inside information.
  • pileated woodpecker — a large, black-and-white American woodpecker, Dryocopus pileatus, having a prominent red crest.
  • pilgrimage of grace — a rebellion in 1536 in N England against the Reformation and Henry VIII's government
  • pillars of hercules — the two promontories at the E end of the Strait of Gibraltar: the Rock of Gibraltar on the European side and the Jebel Musa on the African side; according to legend, formed by Hercules
  • pinwheel escapement — a clock escapement in which two pallets, usually of unequal length, alternately engage and release pins set on the escape wheel perpendicular to its plane of rotation.
  • pirates of penzance — an operetta (1879) by Sir William S. Gilbert and Sir Arthur Sullivan.
  • pistachio ice cream — ice cream flavoured with pistachios
  • pistol-handle knife — a table knife, especially of the 18th century, having a slightly curved handle resembling the grip of a flintlock pistol.
  • planning permission — In Britain, planning permission is official permission that you must get from the local authority before building something new or adding something to an existing building.
  • plastic deformation — In plastic deformation a material changes shape when a stress is applied to it and does not go back to its original state when the stress is removed.
  • play fast and loose — a dramatic composition or piece; drama.
  • play footsie (with) — to touch feet or rub knees (with) in a caressing way, as under the table
  • play the devil with — Theology. (sometimes initial capital letter) the supreme spirit of evil; Satan. a subordinate evil spirit at enmity with God, and having power to afflict humans both with bodily disease and with spiritual corruption.
  • play to the gallery — a raised area, often having a stepped or sloping floor, in a theater, church, or other public building to accommodate spectators, exhibits, etc.
  • pleased to meet you — greeting
  • pneumatic conveying — Pneumatic conveying is the movement of powdered or granulated solids using air.
  • pneumoencephalogram — an encephalogram made after the replacement of the cerebrospinal fluid by air or gas, rarely used since the development of the CAT scanner.
  • pneumogastric nerve — the vagus nerve.
  • pocket-handkerchief — handkerchief (def 1).
  • poincare conjecture — Mathematics. the question of whether a compact, simply connected three-dimensional manifold is topologically equivalent to a three-dimensional sphere.
  • 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
  • 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.
  • polycarboxylic acid — a type of carboxylic acid containing two or more carboxyl groups
  • polyclonal antibody — a mixture of antibodies of different specificities, as in the serum of a person immunized to various antigens.
  • polyphosphoric acid — any one of a series of oxyacids of phosphorus with the general formula Hn+2PnO3n+1. The first member is pyrophosphoric acid (n = 2) and the series includes the highly polymeric metaphosphoric acid. The higher acids exist in an equilibrium mixture
  • 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-and-rail fence — a fence constructed of upright wooden posts with horizontal timber slotted through it
  • 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.
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