ExpertGlossary terms starting with L

1,745 terms

  1. "lame duck" session When Congress (or either chamber) reconvenes in an even-numbered year following the November general elections to consider various items of business.
  2. 'Legal Document Repository' or 'Litigation Document Repository' An electronic system for data retrieval of documents in connection with litigation. Features may include external hosting, search, retrieval and security.
  3. L&TH Lethality and Target Hardening.
  4. L-3,5,5'-tetraiodothyronine (...TEH-truh-i-oh-doh-THY-roh-neen) A hormone that is made by the thyroid gland and contains iodine.
  5. L-377,202 A substance that is being studied in the treatment of cancer.
  6. L-778,123 An anticancer drug that belongs to the family of drugs called enzyme inhibitors. It may inhibit the transformation of normal cells into cancer cells.
  7. L-arginine (… AR-jih-neen) One of the twenty common amino acids (building blocks of proteins).
  8. L-asparaginase (... as-PA-ruh-jih-nayz) A drug that is used to treat acute lymphoblastic leukemia (ALL) and is being studied in the treatment of some other types of…
  9. L-carnitine A form of carnitine, which is a substance made in the muscles and liver. It can be given as a supplement to prevent and treat carnitine deficiency in…
  10. L-glutamic acid (... gloo-TA-mik A-sid) One of twenty amino acids (molecules that join together to form proteins).
  11. L-norgestrel (... nor-JES-trel) A form of the hormone progesterone that is made in the laboratory and used to prevent pregnancy.
  12. L-pad A pad composed of two discrete components, one series component and one shunt component.
  13. L-threo-dihydrosphingosine (...THREE-oh-dy-HY-drose-FIN-guh-seen) A substance that is being studied in the treatment of cancer.
  14. L1SS Level 1 System Simulator.
  15. L2SS Level 2 System Simulator - NTF.
  16. L<sub>dn</sub> The day-night average sound level. It is the average A-weighted sound level over a 24-hour period that gives additional weight to noise that occurs during…
  17. L<sub>eq</sub> Equivalent/continuous sound level. Leq is the steady sound level that would contain the same total sound energy as the time-varying sound over a given…
  18. La Grande this is the French term for the nine dealt in a natural.
  19. La Ni&ntilde;a La Niña, a phase of ENSO, is a periodic cooling of surface ocean waters in the eastern tropical Pacific along with a shift in convection in the western…
  20. La partage roulette rule similar to the en prison rule, only in this case the player loses half the bet and does not have the option of leaving the bet en prison for…
  21. La partage rule Mainly applicable in European roulette games. It has the same idea as the en prison rule except that the player is not given the option to keep the bet in…
  22. La Petite this is the French term for the eight dealt in a natural.
  23. LAA Limited Access Area.
  24. LAAD Low Altitude Air Defense.
  25. LAAFB Los Angeles Air Force Base, CA.
  26. lab-on-a-chip An instrument that uses very small amounts of fluid on a microchip to do certain laboratory tests.
  27. LABCOM Laboratory Command.
  28. label The FDA approved label is the official description of a drug product which includes indication (what the drug is used for); who should take it; adverse…
  29. label bureau A computer or server that supplies content labels or Web-site ratings. Synonym rating server. [Bahorsky]
  30. label point See point.
  31. labeled channel In integrated services digital networks, (ISDN), a time-ordered set of all block payloads that have labels containing the same information, i.e.
  32. labeled interface structure In integrated services digital networks (ISDN), an interface structure that provides telecommunications services and signaling by means of labeled…
  33. labeled multiplexing In integrated services digital networks (ISDN), multiplexing by concatenation of the blocks of the channels that have different identifiers in their…
  34. labeled statistical channel In integrated services digital networks (ISDN), a labeled channel in which the block payloads or the duration of each successive block is random.
  35. Labeling of foods The process of developing a list of ingredients contained in foods. Labels imply that the list of ingredients can be verified. The U.S.
  36. labelling The process of attaching or inserting a label into a molecule. Most often in the context of nucleic acids or protein s.
  37. labial mucosa (LAY-bee-ul myoo-KOH-suh) The inner lining of the lips.
  38. LABM Local Area Battle Manager.
  39. Labor Certification The initial stage of the process by which certain foreign workers get permission to work in the United States.
  40. Labor Condition Application (LCA) Labor condition application (LCA), Form ETA 9035/9035E is a document that a prospective H-1B employer files with OFLC when it seeks to employ nonimmigrant…
  41. Laboratory a facility (1) employing at least two full-time employees who are qualified DNA analysts and (2) having and maintaining the capability to perform the DNA…
  42. laboratory attack Use of sophisticated signal recovery equipment in a laboratory environment to recover information from data storage media. [INFOSEC-99]
  43. Laboratory Director (or Administrative) Case File Review a detailed final review of the case file documentation. A member other than the assigned analyst must conduct the Laboratory Director case file review on…
  44. Laboratory Personnel ADFS members with specific laboratory responsibilities.
  45. Laboratory Satellite a member of a laboratory system that is managed by, but is physically separated from, a parent or regional laboratory.
  46. laboratory study Research done in a laboratory. These studies may use test tubes or animals to find out if a drug, procedure, or treatment is likely to be useful.
  47. Laboratory support personnel employees who perform laboratory duties exclusive of analytical techniques on database and/or known samples.
  48. Laboratory System an organization containing at least two physically separate laboratory facilities that are independently managed under the control of a single superior in…
  49. laboratory test A medical procedure that involves testing a sample of blood, urine, or other substance from the body.
  50. Labored Breathing (Kussmaul) Spasmatic respiratory attack (paroxysmal) of forced deep breathing characteristic of diabetic ketoacidosis or other causes of acidosis.
  51. LaBouchere Betting System A type of Cancellation Betting System where numbers are cancelled out from a user-defined string of numbers after a win and added to the string after a…
  52. LABP Look Ahead Battle Planner
  53. LAC Low Authority Control.
  54. lac repressor-lac promoter system See: IPTG.
  55. Laccolith An igneous intrusion that has been forced between two layered rock units. The top of the intrusion is arched upwards and the bottom of the intrusion is…
  56. LACE this is where cards a re placed at random into a stack of cards one at a time.
  57. Lacerations anything that has been torn roughly for example: a rough cut.
  58. LACM Land Attack Cruise Missile.
  59. lacrimal gland A gland that secretes tears. The lacrimal glands are found in the upper, outer part of each eye socket.
  60. lactase (LAK-tayz) An enzyme that breaks down lactose, a type of sugar found in milk and milk products.
  61. lactate dehydrogenase (LAK-tayt dee-hy-DRAH-jeh-nayz) One of a group of enzymes found in the blood and other body tissues and involved in energy production in cells.
  62. lactic acid (LAK-tik A-sid) A substance made from sugars in milk, by the action of certain enzymes.
  63. lactic acid dehydrogenase (LAK-tik A-sid dee-hy-DRAH-jeh-nayz) One of a group of enzymes found in the blood and other body tissues, and involved in energy production in cells.
  64. Lactiferous ducts (lack tih' fer us)the part of the breast that carries the milk to the nipple.
  65. Lactiferous sinuses (lack-tih'-fer-us si'-nus-sehz)the part of the breast that collects the milk and holds it until it is released through the nipple.
  66. lactoferrin (LAK-toh-fayr-in) A protein that is found in milk, tears, mucus, bile, and some white blood cells and is being studied in the treatment and prevention of…
  67. Lactoic Acidosis Accumulation of excessive lactic acid in the blood resulting in muscles burning glucose instead of oxygen.
  68. lactose A type of sugar found in milk and milk products.
  69. lactose intolerance The inability to digest or absorb lactose, a type of sugar found in milk and other dairy products.
  70. Lacunae The spaces occupied by cells (e.g., chondrocytes and osteocytes) of calcified tissues.
  71. Lacustrine habitat Lake or reservoir wetland habitat.
  72. Lacustrine wetland Wetlands that are generally larger than 20 acres and having less than 30% cover of vegetation such as trees, shrubs, or persistent emergent plants.
  73. LADAR Laser Detection and Ranging.
  74. Laddering Laddering is an investment strategy that calls for establishing a pattern of rolling maturity dates for a portfolio of fixed-income investments.
  75. Laddering Down A hypothetical technique for overcoming a terminal phase missile defense. Successive salvos of salvage-fused RVs attack.
  76. Ladderman The employee of the casino that oversees the Baccarat table.
  77. LADL Lightweight Air Defense Launcher (USA TBMD term).
  78. LADS Low Altitude Demonstration System.
  79. laetrile (LAY-eh-tril) A substance found in the pits of many fruits such as apricots and papayas, and in other foods.
  80. LAFB Langley AFB, VA.
  81. Lag Refers to slow game response times. The cause can be graphical based (weak graphics card), internet based (ping), system based (lack of memory, virtual…
  82. Lag (of a basin) The measure of the time between the center of mass of precipitation to the center of mass of runoff (on the hydrograph); basin lag is a function of not…
  83. Lag (Time) The time it takes a flood wave to move downstream.
  84. Lag gravel Residual deposit of coarse material that has had the finer fraction removed by a transporting agent, usually wind or water.
  85. Lag phase The initial growth phase, during which cell number remains relatively constant prior to rapid growth. See growth phase.
  86. Lagging In tunneling, planking placed against the dirt or rock walls and ceiling, outside the ribs.
  87. lagging strand The strand of DNA that is synthesized discontinuously during replication (because DNA synthesis can proceed only in the 5'?3' direction).
  88. Lagomorphs The order of mammals including rabbits, hares, and pikas.
  89. Lagoon In wastewater treatment or livestock facilities, a shallow pond used to store wastewater where sunlight and biological activity decompose the waste.
  90. Lahar A mudflow composed of water and volcanic ash. Lahars can be triggered by the flash melting of the snow cap of a volcanic mountain or from heavy rain.
  91. LAK cell A white blood cell that is stimulated in a laboratory to kill tumor cells. Also called lymphokine-activated killer cell.
  92. lake bed, lake-bed The bottom of a lake.
  93. Lake Breeze A thermally produced wind blowing during the day from the surface of a large lake to the shore, caused by the difference in the rates of heating of the…
  94. Lake Effect Snow Snow showers that are created when cold, dry air passes over a large warmer lake, such as one of the Great Lakes, and picks up moisture and heat.
  95. Lake Effect Snow Advisory This product is issued by the National Weather Service when pure lake effect snow (this is where the snow is a direct result of lake effect snow and not…
  96. Lake Effect Snow Squall A local, intense, narrow band of moderate to heavy snow squall that can extend long distances inland. It may persist for many hours.
  97. Lake Effect Snow Warning This product is issued by the National Weather Service when pure lake effect snow (this is where the snow is a direct result of lake effect snow and not…
  98. Lake Effect Storm A fall or winter storm that produces heavy but localized precipitation as a result of temperature differences between the air over snow-covered ground and…
  99. lake zones Designation that includes four categories: shallow water, open water, deep water and basin.
  100. Lakeshore Flood Advisory See Coastal/Lakeshore Flood Advisory.