Defense — page 43 of 65

6,416 terms

Defense terms

  1. ORWG Operational Requirements Working Group.
  2. OS Operating System
  3. OSA Optical Society of America.
  4. OSC Optical Signature Code.
  5. OSCE Organization for Cooperation and Security in Europe.
  6. OSD Office of the Secretary of Defense.
  7. OSE Operational Support Equipment.
  8. OSEIT Operations and Support Engineering Integration Tool. 215
  9. OSF Open Systems Foundation.
  10. OSH Occupational Safety and Health.
  11. OSHA See Occupational Safety and Health Administration.
  12. OSI Operator System Interface.
  13. OSIA On Site Inspection Agency, Washington, DC.
  14. OSIM Object Simulation (NMD BMC3 term).
  15. OSIP Operational System Integration Plan.
  16. OSIWG Operating Systems Interface Working Group.
  17. OSJTF Open Systems Joint Task Force.
  18. OSM Object Sighting Message.
  19. OSS Operations Support System (Navy C3 program).
  20. OSTP Office of Science and Technology Policy.
  21. OSWR Office of Science and Weapons Research.
  22. OT Operational Test.
  23. OT&E See Operational Test and Evaluation.
  24. OTA (1) Office of Technology Assessment, Washington, DC. (2) Operational Test Agency. (3) Office of Technology Applications, MDA.
  25. OTCIXS Officer in Tactical Command Information Exchange Subsystem (Navy term).
  26. OTDR Optical Time-Domain Reflectometer .
  27. OTF Object Track Profile.
  28. OTH Over the Horizon.
  29. OTH-B Over-The-Horizon.
  30. OTH-T Over-The-Horizon Targeting.
  31. OTO Operational Test Organization.
  32. OTP Outline Test Plan.
  33. OTS Off-the-Shelf.
  34. OTSA Off-the-Shelf Analysis.
  35. OTV Orbital Transfer Vehicle.
  36. OUSD Office of the Under Secretary of Defense. 216
  37. OUSD (A&T) Office of the Under Secretary of Defense (Acquisition & Technology).
  38. OUSD (A) OBSOLETE. See OUSD (A&T).
  39. Out of Band Laser Flux (Sensor) Laser energy directed at a sensor that is intended to damage or disrupt the sensor and is outside the sensors bandwidth.
  40. Out-Years Normally, six years beyond the year being worked in the upcoming POM/budget.
  41. Outer Space Treaty of 1967 A multilateral treaty signed and ratified by both the United States and the (former) Soviet Union.
  42. Outlays Outlays are payments made (generally through the issuance of checks or disbursement of cash) to liquidate obligations.
  43. Overlay BMD System An advanced exoatmospheric defense system oriented toward defense of ICBMs, consisting of missile-borne, passive infrared sensors and non-nuclear homing…
  44. OWG Operating Working Group. 217
  45. P 2 Pollution Prevention.
  46. p 2 NRTA&A Pre-Planned Near-Real-Time Assessment and Adaptation.
  47. P 3 Pollution Prevention Program.
  48. P 3 I Preplanned Product Improvement.
  49. P N A semiconductor (photovoltaic) device structure in which the junction is formed between a p-type layer and an n-type layer.
  50. P&D Planning and Design (MILCON term).
  51. P&M (1) Producibility and Manufacturing. (2) Procure and Manufacture.
  52. P2 Pollution Prevention.
  53. P3 Pollution Prevention Program.
  54. PA (1) Product Assurance. (2) Public Affairs.
  55. PA&E Program Analysis and Evaluation.
  56. PA&ID Program Analysis and Integration Directorate.
  57. PAC Patent Assistance Center (prior), now the Inventors Assistance Center or IAC, call (toll-free) 1-800-786-9199 or 703-308-4357
  58. PAC-2 PATRIOT Advanced Capability-2
  59. PAC-2/-3 PATRIOT Advanced Capability, Level 2/Level 3. Formerly called ERINT.
  60. PAC-3 PATRIOT Advanced Capability-3
  61. PAC-3 SIM PAC-3 Simulation (PATRIOT), Huntsville, AL.
  62. PAC-4 PATRIOT Advanced Capability-4.
  63. PACA Professional Aerospace Contractors Association.
  64. PACAF [United States} Air Forces Pacific.
  65. PACBAR Pacific [Radar] Barrier.
  66. PACFLT Pacific Fleet (US).
  67. Packaging, Handling, Storage, and Transportation (PHS&T) The resources, processes, procedures, design considerations, and methods to ensure that all system, equipment, and support items are preserved, packaged…
  68. Packet Switching (PSW) A data transmission process, utilizing addressed packets, whereby a channel is occupied only for the duration of transmission of the packet.
  69. PACOM U.S. Pacific Command.
  70. PACOSS Passive and Active Controls of Space Structures.
  71. PADIL Patriot Data & Information Link. 218
  72. PAFB Patterson Air Force Base.
  73. PAL Permissive Action Link.
  74. PALS Protection Against Limited Strikes (SDIO term).
  75. PAM Pulse Amplitude Modulation.
  76. PAN Polyacrylonatrile [carbon fiber].
  77. Pancake Altitude Altitude at which the trailing edge of a chaff puff/cloud effectively catches up to the leading edge because of atmospheric slowdown.
  78. PAP An enzyme produced by the prostate. It may be found in increased amounts in men who have prostate cancer. Also called prostatic acid phosphatase.
  79. PAR Performance and Accountability Report -- see Annual Reports for more
  80. Parallel Processing In parallel processing multiple processors (CPUs) divide up a large task into smaller ones and each CPU acts on the subdivided task simultaneously so that…
  81. Parametric Cost Estimate A cost estimating methodology using statistical relationships between historical costs and other program variables such as system physical or performance…
  82. PARCS Perimeter Acquisition Radar and Attack Characterization System.
  83. PARPRO Peacetime Application of Reconnaissance Programs.
  84. Partial Mission Capable Material condition of an aircraft or training device indicating that it can perform at least one, but not all, of its missions. Also called PMC.
  85. Participating Service A military Service that supports the lead Service in the development of a joint acquisition program by its contribution of personnel and/or funds.
  86. Particle Beam (PB) High-energy beam made up of atomic/sub-atomic particles (electrons, protons, or neutrons) accelerated to near the speed of light.
  87. Particle Beam Weapon (PBW) A weapon that relies on the technology of particle accelerators (atom-smashers) to emit beams of charged or neutral particles, which travel near the speed…
  88. PASS A working trip or passage of an excavating, grading, or compaction machine. See compaction.
  89. Passive In surveillance, an adjective applied to actions or equipment, which emit no energy capable of being detected. 219
  90. Passive Air Defense All measures, other than active air defense, taken to minimize the effectiveness of hostile air action.
  91. Passive Communications Security Threats Threats to electronic systems posed by a capability to obtain intelligence through intercepting and evaluating intentional and inadvertent electromagnetic…
  92. Passive Defense (1) Measures taken to reduce the probability of and to minimize the effects of damage caused by hostile action without the intention of taking the…
  93. Passive Sensor A sensor that detects naturally occurring emissions from a target for tracking and/or identification purposes.
  94. PAT In blackjack, an unbusted hand worth at least 17 points. In draw poker, a hand that does not need any more hands.
  95. PAT&E Production Acceptance Test and Evaluation.
  96. PATHS Precursor Above-the-Horizon Sensor.
  97. PATRIOT See Phased Array Tracking Radar Intercept On Target (missile).
  98. PAVE Precision Acquisition of Vehicle Entry (USAF term).
  99. PAVE PAWS Position And Velocity Extraction Phased Array Warning System. Phased array SLBM warning system. Four sites: a. East Otis ANG Base, MA b.
  100. PAWS Phased-Array Warning System (USAF term).

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