ExpertGlossary terms starting with O

1,317 terms

  1. obsolete In cryptography, pertaining to the state of a key that must no longer be used either to transmit information from the originator or to process received…
  2. obsolete date In encryption, the date and time when a key becomes obsolete. [After X9.17]
  3. obstruction Blockage of a passageway.
  4. Obstruction of Justice according to Black's law dictionary, obstruction of justice means "impeding or obstructing those who seek justice in a court, or those who have duties or…
  5. OBSV Observation.
  6. Obtención de información y pruebas Obtención de información o datos pertinentes a una acción judicial por una de las partes de la misma de acuerdo con las reglas escritas.
  7. obtundation (ob-tun-DAY-shun) A dulled or reduced level of alertness or consciousness.
  8. obvious to try The validity of a patent can be challenged by attempting to show that what the inventor did would have been obvious to try based on the prior art, and…
  9. Obviousness A characteristic that makes an invention predicable to a person having ordinary skill in the art who has knowledge of all of the prior art.
  10. OC Operations Center.
  11. OCA Offensive Counter-air.
  12. OCC Abbreviation for other common carrier.
  13. Occluded Front A composite of two fronts, formed as a cold front overtakes a warm or quasi-stationary front.
  14. Occluded Mesocyclone A mesocyclone in which air from the rear-flank downdraft has completely enveloped the circulation at low levels, cutting off the inflow of warm unstable…
  15. occult primary tumor (uh-KULT PRY-mayr-ee TOO-mer) Cancer in which the site of the primary (original) tumor cannot be found.
  16. occult stage non-small cell lung cancer (uh-KULT ... KAN-ser) Cancer cells are found in sputum (mucus coughed up from the lungs), but no tumor can be found in the lung by imaging or…
  17. Occupancy Indicates whether the property to which the loan application relates will be the owner's principal dwelling.
  18. Occupancy Sensor An optical, ultrasonic, or infrared sensor that turns room lights on when they detect a person's presence and off after the space is vacated.
  19. Occupation Occupation means the occupational or job classification in which the H-1B nonimmigrant is to be employed.
  20. Occupational Employment Statistics (OES) OES is the Occupational Employment Statistics survey conducted by DOL, Bureau of Labor Statistics (BLS), available on line.
  21. Occupational Safety and Health Act See Occupational Safety and Health Administration.
  22. Occupational Safety and Health Act (OSHA) The mission of the Occupational Safety and Health Administration (OSHA) is to save lives, prevent injuries and protect the health of America's workers.
  23. Occupational Safety and Health Act of 1970 (OSHA) The Williams-Steiger Occupational Safety and Health Act of 1970 (OSHA) is a law designed to protect the health and safety of industrial workers and also…
  24. Occupational Safety and Health Administration (OSHA) One of the U.S. agencies responsible for regulation of biotechnology. The major law under which the agency has regulatory powers is the Occupational…
  25. occupational therapist A health professional trained to help people who are ill or disabled learn to manage their daily activities.
  26. Occupiable space A room, or enclosure and accessory installations thereof, which are intended for human occupancy or habitation
  27. occupied bandwidth The width of a frequency band such that, below the lower and above the upper frequency limits, the mean powers emitted are each equal to a specified…
  28. Occupied Space The space within a building or structure that is normally occupied by people, and that may be conditioned (heated, cooled and/or ventilated).
  29. Occurrence An event that results in an insured loss.
  30. OCD Operational Concept Document.
  31. Ocean Energy Systems Energy conversion technologies that harness the energy in tides, waves, and thermal gradients in the oceans.
  32. Ocean Thermal Energy Conversion (OTEC) The process or technologies for producing energy by harnessing the temperature differences (thermal gradients) between ocean surface waters and that of…
  33. Ocean Transportation Intermediary License A document issued by the Federal Maritime Commission indicating that a person or company has authorization to act as a Freight Forwarder or…
  34. oceanographic data interrogating station A station in the maritime mobile service the emissions of which are used to initiate, modify or terminate functions of equipment directly associated with…
  35. oceanographic data station A station in the maritime mobile service located on a ship, buoy, or other sensor platform the emissions of which are used for transmission of…
  36. Oceanography The study of the ocean, embracing and integrating all knowledge pertaining to the ocean's physical boundaries, the chemistry and physics of sea water, and…
  37. OCFNT Occluded Front - a composite of two fronts, formed as a cold front overtakes a warm or quasi-stationary front.
  38. ochre stop codon See: stop codon.
  39. OCI Organizational Conflict of Interest.
  40. OCM Overt Countermeasure.
  41. OCN An Operating Company Number (OCN) is a four place alphanumeric code that uniquely identifies providers of local telecommunications service.
  42. OCNL Occasional
  43. OCONUS Outside CONUS.
  44. OCR Optical Character Reader.
  45. OCR (Optical Character Recognition) A technology process that translates and converts printed matter on an image into a format that a computer can manipulate (ASCII codes, for example) and…
  46. OCR or 'Optical Character Recognition' The process of taking scanned images (from documents) and electronically converting them into editable text.
  47. OCR Text Optical Character Recognition; searchable text that corresponds to a document image; an OCR software program designed to read a document image generates…
  48. OCS (1) Operational Control System. (2) Ozone Depleting Chemical.
  49. octal Number representation in base 8. In base 8, only the digits 0 to 7 are used. Digit positions represent successive powers of 8.
  50. octal character constant A character constant in the form \ddd, where each d is an octal digit. This may be used for characters with a Unicode value in the range 0-255.
  51. Octane enhancer Any substance that is added to gasoline to increase octane.
  52. octane rating (octane number) A measure of a fuel’s resistance to self ignition, hence a measure as well of the antiknock properties of the fuel.
  53. octet A byte of eight binary digits usually operated upon as an entity.
  54. octet alignment The configuration of a field composed of an integral number of octets. Note: If the field is not divisible by eight, bits (usually zeros) are added to…
  55. OCTO GIS Refers to the central GIS staff, and not the DC GIS system.
  56. octoploid . An organism, or a tissue whose cells contain eight haploid sets of chromosomes.
  57. octreotide A drug similar to the naturally occurring growth hormone inhibitor somatostatin.
  58. octreotide scan A type of radionuclide scan used to find carcinoid and other types of tumors. Radioactive octreotide, a drug similar to somatostatin, is injected into a…
  59. OCU Operators Console Unit (THAAD).
  60. ocular melanoma (AH-kyoo-ler MEH-luh-NOH-muh) A rare cancer of melanocytes (cells that produce the pigment melanin) found in the eye. Also called intraocular melanoma.
  61. OD Optical Disk (PATRIOT).
  62. OD PA&E Office of the Director, Program Analysis and Evaluation.
  63. ODA Optical Discrimination Algorithms/Architecture.
  64. ODASD Office of the Deputy Assistant Secretary of Defense.
  65. ODCS Office, Deputy Chief of Staff.
  66. ODCSINT Office of the Deputy Chief of Staff for Intelligence.
  67. ODCSOPS Office of the Deputy Chief of Staff for Operations and Plans (DAHQ term).
  68. Odd Bet A wager that one of the odd numbers will win the next spin.
  69. Odd lot A number of shares which is less than a board lot.
  70. odd parity See parity, parity check.
  71. odd-even check Synonym parity check.
  72. ODDI Office of the Director of Defense Information. 208
  73. Odds The likelihood of an event happening.
  74. odds ratio (… RAY-shee-oh) A measure of the odds of an event happening in one group compared to the odds of the same event happening in another group.
  75. ODES Operational and Developmental Experiments Simulator.
  76. ODISC4 Office of the Director of Information Systems for C4.
  77. ODN (Open Data Network) An Open Data Network is capable of carrying all kinds of services for all kind of users from all kind of providers, for example, telephone or computer…
  78. odor (OH-der) A smell.
  79. odorant (OH-deh-runt) A substance that gives off a smell.
  80. OEC (1) Operational Evaluation Command (US Army term). (2) Other Early Capability.
  81. OECD Organization for Economic Cooperation and Development.
  82. OED Office of Enrollment and Discipline
  83. OEIP Office of Electronic Information Products
  84. OEM Original Equipment Manufacturer.
  85. OEM Preinstallation Kit A set of tools, documentation, and samples that enable OEMs to preinstall Windows efficiently on new computers according to the terms of the OEM Licensing…
  86. OEODM The Office of Equal Opportunity and Diversity Management. Provides a duel role.
  87. oestrogen The generic term for a group of female sex hormones which control the development of sexual characteristics and control oestrus.
  88. oestrous (adj.) See: oestrus.
  89. oestrous cycle The cycle of reproductive activity shown by most sexually mature non-pregnant female mammals. AlteRNA tive spelling: estrous.
  90. oestrus In female mammals, the period of sexual excitement and acceptance of the male. Synonyms: rut, heat. AlteRNA tive spelling: estrus (adj.: estrous).
  91. ofatumumab (oh-FAT-oo-moo-mab) A monoclonal antibody being studied in the treatment of certain types of B-cell cancers including chronic lymphocytic leukemia (CLL)…
  92. OFC Abbreviation for optical fiber, conductive. Note: OFC is the designation given by the National Fire Protection Association (NFPA) to interior fiber-optic…
  93. OFCP Abbreviation for optical fiber, conductive, plenum. Note: OFCP is the designation given by the National Fire Protection Association (NFPA) to interior…
  94. OFCR Abbreviation for optical fiber, conductive, riser. Note: OFCR is the designation given by the National Fire Protection Association (NFPA) to interior…
  95. Off the Shelf Procurement of existing system or equipment without an RDT&E program or with minor development to make the system suitable for DoD needs.
  96. off-axis optical system An optical system in which the optical axis of the aperture is not coincident with the mechanical center of the aperture.
  97. Off-board Transactions in New York Stock Exchange (NYSE) listed securities that aren't executed on a national exchange are known as off-board transactions.
  98. off-budget entities The budget authority, outlays, and receipts of certain Federal entities that have been excluded from budget totals under provisions of law.
  99. Off-Card Refers to data that is not stored within the PIV card or computation that is not done by the Integrated Circuit Chip (ICC) of the PIV card.
  100. off-color Refers to the color and or clarity of the water. The normal off-color conditions include brown or mud-stained such as from runoff, green from algae or…