ExpertGlossary terms starting with O

1,317 terms

  1. overflow In telephony, the generation of potential traffic that exceeds the capacity of a communications system or subsystem. 2.
  2. Overflow dam A dam designed to be overtopped.
  3. Overflow spillway (ogee spillway) A spillway that has a control weir that is ogee-shaped (S-shaped) in profile. A spillway on a dam that functions like a dam, but allows water to safely…
  4. overgrowth syndrome (OH-ver-grohth SIN-drome) A group of genetic disorders in which there is an abnormal increase in the size of the body or a body part that is often noted…
  5. Overhang See: extension.
  6. Overhaul Movement of (earth) material far enough so that payment, in addition to excavation pay, is made for haulage.
  7. overhead bit Any bit other than a user information bit.
  8. overhead communications See overhead bit.
  9. overhead information Digital information transferred across the functional interface between a user and a telecommunications system, or between functional units within a…
  10. Overland Flow The flow of rainwater or snowmelt over the land surface toward stream channels. After it enters a watercourse it becomes runoff.
  11. overlap pulsing An arrangement for exchange-carrier-to-interexchange carrier (EC-to-IC) outpulsing that allows seizure of the EC-to-IC trunk and initiation of outpulsing…
  12. Overlapping clones See: genomic library
  13. overlapping reading frame Start codons in different reading frames generate different polypeptides from the same DNA sequence.
  14. Overlapping reading frames Start codons in different reading frames generate different polypeptides from the same DNA sequence. (See Reading frame.)
  15. overlay See topological overlay.
  16. Overlay BMD System An advanced exoatmospheric defense system oriented toward defense of ICBMs, consisting of missile-borne, passive infrared sensors and non-nuclear homing…
  17. overlay cell A larger cell that physically overlays one or more smaller cells. For example, intra-building cells may be encompassed by a larger campus cell. [T1.
  18. Overlay Districts Zoning districts in which additional regulatory standards are superimposed on existing zoning.
  19. Overlimit An open-end credit account in which the assigned dollar limit has been exceeded.
  20. Overload To exceed the design capacity of a device.
  21. overload point Synonym load capacity.
  22. overloading Using one identifier to refer to multiple items in the same scope. In the Java programming language, you can overload methods but not variables or…
  23. overmodulation The condition that prevails when the instantaneous level of the modulating signal exceeds the value necessary to produce 100% modulation of the carrier.
  24. Overnight capital cost The capital cost of a project if it could be constructed overnight. This cost does not include the interest cost of funds used during construction.
  25. Overpair A pocket pair higher than any card on the flop. If you have QQ and the flop comes J-8-3, you have an overpair.
  26. Overpopulated (overcrowded) A term that describes a fish population where too many fish are present for the amount of available food.
  27. override To preempt, manually or automatically, a prescribed procedure. Note: For example, one might manually override a prescribed course of action programmed to…
  28. override of a veto The process by which each chamber of Congress votes on a bill vetoed by the President.
  29. overriding Providing a different implementation of a method in a subclass of the class that originally defined the method.
  30. overriding for breadth A form of method overriding in which the sub class version of a method implements its own behavior within the context of the attributes and behavior of…
  31. overriding for chaining A form of method overriding in which the sub class version of a method checks to see whether it can respond to the message on its own and only calls the…
  32. overriding for restriction A form of method overriding in which the sub class version of a method calls the super class version first of all and then uses or manipulates the result…
  33. Overrule A judge's decision not to allow an objection. Also, a decision by a higher court finding that a lower court decision was in error.
  34. Overrunning A weather pattern in which a relatively warm air mass is in motion above another air mass of greater density at the surface.
  35. Overseas adjustment An adjustment made to the national estimates of personal income to exclude the wages and salaries and related components of the income of U.S.
  36. overshoot That portion of an arc digitized past its intersection with another arc. See also dangling arc.
  37. Overshooting Top (or Penetrating Top) - A dome-like protrusion above a thunderstorm anvil, representing a very strong updraft and hence a higher potential for severe…
  38. oversight Committee review of the activities of a Federal agency or program.
  39. Oversold A stock, a market sector, or an entire market may be described as oversold if it suddenly drops sharply in price, despite the fact that the country's…
  40. Overstay An “overstay” occurs when a visitor stays longer than permitted as shown on his/her electric admission stamp or paper Form I-94 Arrival/Departure…
  41. Overstory The portion of the trees forming the upper or uppermost canopy in a forest stand.
  42. Oversubscribed An initial public offering (IPO) is oversubscribed when investor demand for the shares is greater than the number of shares being issued.
  43. Overt Biometric sample collection where end users know they are being collected and at what location.
  44. overt channel [A] Communications path within a computer system or network designed for the authorized transfer of data. [INFOSEC-99]
  45. overtone Of a sinusoidal wave, an integral multiple of the frequency, i.e., the fundamental, of the wave, other than the fundamental itself.
  46. Overtopping Flow of water over the top of a dam or embankment.
  47. Overture The company which pioneered search marketing by selling targeted searches on a pay per click basis.
  48. Overture Keyword Selector Tool Popular keyword research tool, based largely on Yahoo! search statistics. Heavily skewed toward commercially oriented searches, also combines singular and…
  49. Overturn The almost spontaneous mixing of all layers of water in a reservoir or lake when the water temperature becomes similar from top to bottom.
  50. Overvaluation A stock whose price seems unjustifiably high based on standard measures, such as its earnings history, is considered overvalued.
  51. Overvote An overvote occurs when a voter votes for more than the maximum number of selections allowed in a contest.
  52. overweight Being too heavy for one's height. Excess body weight can come from fat, muscle, bone, and/or water retention.
  53. Overweighted When you own more of a security, an asset class, or a subclass than your target asset allocation calls for, you are said to be overweighted in that…
  54. Overwinding A rope or cable wound and attached so that it stretches from the top of a drum to the load.
  55. Overwrite To record or copy new data over existing data, as in when a file or directory is updated. Data that is overwritten cannot be retrieved.
  56. overwrite procedure [The] Process of writing patterns of data on top of the data stored on a magnetic medium. [INFOSEC-99]
  57. Oviduct The passage through which the ova travel from the ovary into the uterus.
  58. OVNGT Overnight
  59. Ovonic A device that converts heat or sunlight directly to electricity, invented by Standford Ovshinsky, that has a unique glass composition that changes from an…
  60. OVR Over
  61. OVRN Overrun
  62. OVRNGT Overnight
  63. ovulation (ov-yoo-LA-shun) The release of an egg from an ovary during the menstrual cycle.
  64. Ovule The part of the seed plant's reproductive organs that comprises the nucellus, the embryo sac and the integuments.
  65. Ovum A female gamete.
  66. ovum pickup (Abbreviation: OPU). The non-surgical collection of ova from a female.
  67. OWG Operating Working Group. 217
  68. OWL see Web Ontology Language.
  69. OWL - Web Ontology Language undefined
  70. OWL DL OWL-DL is much more expressive than OWL-Lite and is based on Description Logics (hence the suffix DL).
  71. OWL Full OWL-Full is the most expressive OWL sub-language. It is intended to be used in situations where very high expressiveness is more important than being able…
  72. OWL Lite The syntactically simplest of the three sub-languages of OWL. It is intended to be used in situations where only a simple class hierarchy and simple…
  73. owl:Thing The class in an OWL ontology that represents the set containing all individuals. All classes in an OWL ontology are subclasses of owl:Thing.
  74. Own-account production Production performed by a businesses or government for its own use.
  75. Own-occupation policy If you purchase an own-occupation disability insurance policy, you are entitled to receive benefits if a disability prevents you from performing the…
  76. Owner The only security principal who has an inherent right to allow or deny permission to access an object.
  77. Owner Financing A transaction in which the property seller provides all or part of the financing for the buyer's purchase of the property.
  78. Owner Occupied Property A property that serves as the borrower's primary residence.
  79. owner password A password that the user sets when the Trusted Platform Module (TPM) is enabled.
  80. Owner Point A map point over a single lot, attributed with information about the owner.
  81. Owner Polygon A single polygon feature class that represents land with taxable information about the owner, taxes, land use, etc.
  82. Owner's Policy The insurance policy that protects the buyer from title defects.
  83. Ownership Ownership is documented by the deed to a property. The type or form of ownership is important if there is a change in the status of the owners or if the…
  84. OX-40 A protein being studied in the treatment of cancer. Substances that attach to OX-40 on the surface of T cells (a type of white blood cell) may help the T…
  85. oxaliplatin (ok-SAL-ih-pla-tin) A drug used to treat colorectal cancer that is advanced or has come back.
  86. oxandrolone (ox-AN-dro-lone) A drug used to help patients gain weight after injury, chronic infection, or severe illness.
  87. oxbow A U-shaped bend in a river or stream. If isolated, they can be referred to as an oxbow lake.
  88. Oxbow channel A natural U-shaped channel in a river as viewed from above.
  89. OXi-104 A substance that blocks the process cells use to repair DNA. It may help anticancer drugs and radiation kill more cancer cells.
  90. oxidation Process in which molecules are split to give products that have unpaired electrons.
  91. oxidative metabolism A chemical process in which oxygen is used to make energy from carbohydrates (sugars).
  92. oxidative phosphorylation The enzymatic addition of a phosphate to ADP to make ATP, coupled to electron transport from a substrate to molecular oxygen.
  93. oxidative stress A condition in which antioxidant levels are lower than normal. Antioxidant levels are usually measured in blood plasma.
  94. oxide (OK-side) A type of chemical substance that is a combination of oxygen and another substance. Oxides are found in essential oils.
  95. Oxidize To chemically transform a substance by combining it with oxygen.
  96. oxycodone (OK-see-KOH-done) A morphine-like drug used to treat medium to severe pain. It belongs to the family of drugs called opioid analgesics and may be…
  97. oxygen (OK-sih-jen) A colorless, odorless gas. It is needed for animal and plant life.
  98. Oxygen cycle Cyclic movement of oxygen in different chemical forms from the environment, to organisms, and then back to the environment.
  99. oxygen isotope ratio (&#948;<sup>18</sup>O) an expression for the ratio of the two isotopes 18O to 16O in a sample relative to a standard, defined as: δ18O= (18O/16Osample - 18O/16Ostandard)/…
  100. oxygen saturation test (OK-sih-jen SA-chuh-RAY-shun…) A test that measures the amount of oxygen being carried by red blood cells.