ExpertGlossary terms starting with P

3,647 terms

  1. POTS OBSOLETE. Phase One Threat Specification.
  2. Pound Pound mass (sometimes abbreviated lb(m)). A unit of mass equal to 0.454 kilograms.
  3. Pound force (sometimes abbreviated lb(f)) A force which will accelerate one pound mass at a rate of 32.2 ft/second(2).
  4. Pound of Steam One pound of water in vapor phase; is NOT steam pressure, which is expressed as pounds per square inch (psi).
  5. Pound Per Square Inch Absolute (psia) A unit of pressure [hydraulic (liquid) or pneumatic (gas)] that does not include atmospheric pressure.
  6. Pounds per square inch (psi or lb/in2) A pressure designation for pounds per square inch. May be pounds per square inch gage (psig) or absolute (psia).
  7. Pounds per square inch (PSI) a term generally used when describing water pressure when cleaning a building
  8. Pour-Over will A will that leaves some or all estate assets to a trust established before the will-maker's death.
  9. Poverty Guidelines The Department of Health and Human Services publishes a list every year giving the lowest income acceptable for a family of a particular size so that the…
  10. Powder factor (explosives factor) A term expressing the amount of explosives used to break a quantity of rock. Normal units for the powder factor are lb/yd3 or kg/m3; however, lb/ton and…
  11. Powder Snow Dry, loose, unconsolidated snow.
  12. Power Authority to do. One has the power to do something if he is of legal age. Also, used as "powers," the term refers to authority granted by one person to…
  13. Power (Output) Curve A plot of a wind energy conversion device's power output versus wind speed.
  14. Power (Solar) Tower A term used to describe solar thermal, central receiver, power systems, where an array of reflectors focus sunlight onto a central receiver and absorber…
  15. Power Bait, Power Worms, Power Craw, Power Eggs, Power Grubs, Power Worms Brand names of commercially prepared scented baits
  16. Power block Portion of the facility at which electrical power is generated.
  17. power budget The allocation, within a system, of available electrical power, among the various functions that need to be performed.
  18. power circuit breaker (PCB) 1. The primary switch used to apply and remove power from equipment. 2. A circuit breaker used on ac circuits rated in excess of 1500V.
  19. Power Coefficient The ratio of power produced by a wind energy conversion device to the power in a reference area of the free windstream.
  20. Power Conditioning The process of modifying the characteristics of electrical power (for e.g., inverting dc to ac).
  21. Power conditioning system (PCS) In solar energy facilities, the collection of electrical equipment that converts direct current (DC) from a photovoltaic array to alternating current (AC)…
  22. Power demand Rate at which electric energy is required and delivered to or by a system over any designated period of time.
  23. Power Density The amount of power per unit area of a free windstream.
  24. power down With respect to an electrical and especially an electronic device, to turn off or otherwise disconnect its primary source of electric power.
  25. power entrance facility (PEF) A space in a building where commercial ac power, standby ac power, or both, enter the building.
  26. Power factor The ratio of real to total power. In alternating-current power transmission and distribution, the cosine of the phase angle between the voltage and…
  27. Power Factor (PF) The ratio of actual power being used in a circuit, expressed in watts or kilowatts, to the power that is apparently being drawn from a power source…
  28. power failure transfer 1. The switching of primary utilities to their secondary backup whenever the primary source operates outside its design parameters. 2.
  29. power gain of an antenna Synonym antenna gain.
  30. Power Generation Mix The proportion of electricity distributed by a power provider that is generated from available sources such as coal, natural gas, petroleum, nuclear…
  31. power margin The difference between available signal power and the minimum signal power needed to overcome system losses and still satisfy the minimum input…
  32. Power marketer A business entity engaged in buying and selling electricity. Power marketers do not usually own generating or transmission facilities.
  33. Power of Attorney A written instrument which authorizes one person to act as another's agent or attorney.
  34. Power of Attorney/Power of Authority A written document signed by a person giving another person the power to act in conducting the signer's business, including signing papers, speaking for…
  35. Power of the Pen The ability to issue hotel comps to players on the part of some casino executives.
  36. Power pool Two or more interconnected electric systems which operate as a single system to supply power to meet combined load requirements.
  37. Power production capacity The amount of power that a facility can produce under ideal operating conditions. See also Battery capacity
  38. Power Provider A company or other organizational unit that sells and distributes electrical power (e.g.
  39. Power purchase agreement Guarantees a market for power produced by an independent power producer and the price at which it is sold to a purchaser.
  40. power supply unit (PSU) The replaceable device that supplies power to a NetApp appliance.
  41. Power tower A type of CSP technology composed of many large, sun-tracking mirrors (heliostats) that focus sunlight on a receiver at the top of a centrally located…
  42. Power tower system See Power tower
  43. Power Transmission Line An electrical conductor/cable that carries electricity from a generator to other locations for distribution.
  44. power up With respect to an electrical and especially an electronic device, to turn on or otherwise connect its primary source of electric power.
  45. Power, electrical A unit of electrical energy, usually expressed in watts (W), kilowatts (kW), or megawatts (MW). One watt equals 3.14 Btu per hour.
  46. power-law index profile For optical fibers, a class of graded-index profiles characterized by where n(r) is the nominal refractive index as a function of distance from the fiber…
  47. power-on self-tests (POST) A series of diagnostic tests performed by a computer when it is turned on.
  48. PowerPath A host-based software product from Symmetrix that delivers intelligent I/O path management.
  49. Powerplant Structure that houses turbines, generators, and associated control equipment.
  50. Powerplant capacity The capacity for powerplants is the nameplate rating in kW (kilowatts) and generally includes only the main generating units, except for very large plants…
  51. Poynting vector The vector obtained in the direction of a right-hand screw from the cross-product (vector product) of the electric field vector rotated into the magnetic…
  52. PP (1) Parallel Processing. (2) Principal Polarization. (3) Post Processing. (4) Program Plan.
  53. PPA See U.S. Department of Agriculture.
  54. PPAC Patent Public Advisory Committee
  55. PPBES (1) Planning, Programming, Budgeting, and Execution System. (2) Program Planning and Budgeting System.
  56. PPBS Planning, Programming, Budgeting System.
  57. PPC Pay Per Click is a pricing model which most search ads and many contextual ad programs are sold through.
  58. PPF Abbreviation for photosynthetic photon flux.
  59. PPG (1) Parallel Programming Group. (2) Program Planning Guidance.
  60. PPI Plan Position Indicator
  61. PPINE P lan P osition I ndicates N o E choes, referring to the fact that a radar detects no precipitation within its range.
  62. PPIP Program Protection and Implementation Plan.
  63. PPIRS Producibility Programming and Issues Resolution Strategies. 228
  64. PPL Provisioning Parts List (ILS term).
  65. PPLI Provisioning Parts List Index (ILS term).
  66. PPM Abbreviation for parts per million.
  67. pPNET A type of cancer that forms in bone or soft tissue. Also called Ewing sarcoma and peripheral primitive neuroectodermal tumor.
  68. PPP Program Protection Plan.
  69. PPQT Pre-Production Qualification Test.
  70. PPS PowerPoint Show file - a type of encapsulated, non-editable Microsoft slideshow
  71. PPT PowerPoint file - a native, editable type of Microsoft slideshow file
  72. PPU Prime Power Unit (THAAD).
  73. PQPF Probabilistic QPF; a form of QPF (see below) that includes an assigned probability of occurrence for each numerical value in the forecast product.
  74. PQT Production Qualification Test.
  75. PR Describes cells that do not have a protein to which the hormone progesterone will bind.
  76. PR protein Abbreviation for pathogenesis related protein.
  77. PR-104 A substance being studied in the treatment of cancer. PR-104 becomes active when cancer cells don't receive enough oxygen.
  78. PRA Program Review Authority. PRB 1. Planning and Resources Board. 2. Program Review Board.
  79. Practice Statement A formal statement of the practices followed by an authentication entity (e.g., RA, CSP, or verifier); typically the specific steps taken to register and…
  80. practitioner (prak-TIH-shuh-ner) A person who works in a specific profession. For example, a doctor or nurse is a healthcare practitioner.
  81. Praecipe A writ commanding a person to do some act or to appear and show cause why he should not do so; an order.
  82. pragma A standard module whose practical hints and suggestions are received (and possibly ignored) at compile time. Pragmas are named in all lowercase.
  83. Pravachol (PRA-vuh-KOL) A drug used to lower the amount of cholesterol in the blood and to prevent stroke and heart attack.
  84. pravastatin (PRA-vuh-stat-in) The active ingredient in a drug used to lower the amount of cholesterol in the blood and to prevent stroke and heart attack.
  85. pravastatin sodium (PRA-vuh-stat-in SOH-dee-um) A drug used to lower the amount of cholesterol in the blood and to prevent stroke and heart attack.
  86. PRB (1) Planning and Resources Board. (2) Program Review Board.
  87. PRBLTY Probability
  88. PRBLY probably
  89. PRC Program Review Committee.
  90. PRC (Palm Resource Code) Palm Resource Code (PRC) is the file format for Palm OS applications.
  91. PRCP Precipitation
  92. PRD Public Records Division
  93. PRDA Program Research and Development Announcement.
  94. PRDR Pre-production Reliability Design Review.
  95. Pre Launch Survivability The probability that a delivery and/or launch vehicle will survive an enemy attack under an established condition of warning.
  96. Pre-1940 Building Any building in the Riverdale Historic District built, in whole or in part, prior to January 1, 1940 including buildings which have undergone subsequent…
  97. Pre-Allocated Defense A preplanned decision to designate a specific number of defensive assets to be used against a specific target or set of targets or to defend a specified…
  98. Pre-Approval A process by which a lender provides a prospective borrower with an indication of how much money he or she will be eligible to borrow when applying for a…
  99. Pre-Approval Letter A letter from a mortgage lender indicating that you qualify for a mortgage of a specific amount. It also shows a home seller that you're a serious buyer.
  100. pre-arbitrated slot A slot dedicated by the head-of-bus function for transferring isochronous service octets.