ExpertGlossary terms starting with L

1,745 terms

  1. Latent Heat Flux The flux of heat from the earth's surface to the atmosphere that is associated with evaporation or condensation of water vapor at the surface; a component…
  2. Latent Heat of Vaporization The quantity of heat produced to change a unit weight of a liquid to vapor with no change in temperature.
  3. latent phase See: lag phase.
  4. latent prints A latent print expert examines all types of fingerprints found at a crime scene, whether visable or not.
  5. Lateral A channel that conveys water from a canal to a farm, municipality, etc.
  6. lateral bud See: axillary bud.
  7. Lateral Coupling Coupling where bow and stern of barges meet, left to right.
  8. lateral filing File system in which files are accessed side to side, not front to back. Also used to describe furniture built to support this type of file system See…
  9. Lateral line A system of sense organs in fish: a series of pores or canals running along a line on each side of the body and on the head; detects pressure changes…
  10. lateral meristem A meristem giving rise to secondary plant tissues, such as the vascular and cork cambia.
  11. Lateral moraine Ridge-like pile of sediment along the side of a glacier.
  12. lateral offset loss In fiber optics, a loss of optical power at a splice or connector, caused by a lateral, i.e.
  13. Latite An igneous, volcanic (extrusive) rock.
  14. Latitude (abbrev. LAT) The location north or south in reference to the equator, which is designated at zero (0) degrees.
  15. latitude-longitude A spherical reference system used to measure locations on the Earth's surface. Latitude and longitude are angles measured from the Earth's center to…
  16. LATS Long Wave Infrared Advanced Technology Seeker/Sensor. 163
  17. Lattice The regular periodic arrangement of atoms or molecules in a crystal of semiconductor material.
  18. Latticework Thin strips of wood arranged in a netlike grid pattern, often set diagonally.
  19. launch angle The angle, with respect to the normal, at which a light ray emerges from a surface. 2.
  20. Launch Azimuth Missile launch location measured in degrees clockwise from the local northpointing longitude line at the launch site. (USSPACECOM)
  21. launch configuration A set of descriptive parameters used to create new EC2 instances in an Auto Scaling activity.
  22. Launch Detection Initial indication by any one of a variety of sensors that a booster has been launched from some point on the surface of the earth, with initial…
  23. launch numerical aperture (LNA) The numerical aperture of an optical system used to couple (launch) power into an optical fiber.
  24. launch permission An Amazon Machine Image (AMI) attribute that allows users to launch an AMI.
  25. Launch Point Determination With computer methods, uses missile track observation to estimate the point on the earths surface from which the missile was launched, expressed in terms…
  26. Launch Under Attack (LUA) Execution by National Command Authorities of Single Integrated Operational Plan forces subsequent to tactical warning of strategic nuclear attack against…
  27. Launch Verification Confirmation of a detection of a booster launch by receiving a report from a sensor separate and independent of the sensor that initially detected a…
  28. launching fiber An optical fiber used in conjunction with a source to excite the modes of another fiber in a particular fashion.
  29. Laurentide ice sheet the ice sheet that grew over a large part of North America during the last glacial period.
  30. Lava Magma that reaches the Earth's surface and issues from volcanoes.
  31. Lava flow An outpouring of lava onto the land surface from a vent or fissure. Also, a solidified tongue-like or sheetlike body formed by outpouring lava.
  32. Lava tubes Natural conduits through which lava moves beneath the surface of a lava flow during a volcanic eruption.
  33. lavender (LA-vun-der) A plant with aromatic leaves and flowers that is a member of the mint family.
  34. Law As used in the Texas Election Code, means a constitution, statute, city charter, or city ordinance.
  35. Law Blank A printed legal form available for preparing documents.
  36. Law Clerk A lawyer (or law school student) employed to do legal research.
  37. law clerk (or staff attorney) Assist judges with research and drafting of opinions.
  38. Law of the River A complex body of laws, court decrees, contracts, agreements, regulations and an international treaty used to govern allocation and management of Colorado…
  39. Law(s) of Thermodynamics The first law states that energy can not be created or destroyed; the second law states that when a free exchange of heat occurs between two materials…
  40. LAWEB (Great Lakes Weather Broadcast) - A National Weather Service product containing an observation summary prepared to provide Great Lakes mariners with a…
  41. Lawful Permanent Resident (LPR) A person who has immigrated legally, admitted to the United States by DHS as a permanent resident of the United States and has a Permanent Resident Card…
  42. Lawful Permanent Resident Alien (LPRA) Lawful permanent resident.
  43. Lawn A uniform and uninterrupted laver of bacterial growth, in which individual colonies cannot be observed.
  44. Laws (immigration and visa related laws) The Code of Federal Regulations contains useful information on the laws regulating U.S. visa policy.
  45. lawsuit An action or proceeding in a civil court; term used for a suit or action between two parties in a court of law.
  46. lawyer -- see attorney
  47. laxative A substance that promotes bowel movements.
  48. Lay Advocate A lay advocate is someone who is trained in housing law and housing court procedure-but who is not an attorney.
  49. lay length In communications cables--including fiber-optic cables--having the transmission media wrapped helically around a central member, the longitudinal distance…
  50. Lay off Lay off of a U.S. worker means that the employer has caused the worker's loss of employment, other than through: discharge due to inadequate performance…
  51. Lay Worker A person who works in a religious organization, but is not a member of the formal clergy.
  52. Laydown area An area that has been cleared for the temporary storage of equipment and supplies.
  53. layer A thematic set of spatial data described and stored in an ArcStorm database or a LIBRARIAN map library.
  54. Layer Composite Reflectivity Average This WSR-88D radar product displays the average reflectivities for a layer. Data is taken from all elevation angles contained in a given layer for each…
  55. Layer Composite Reflectivity Maximum This WSR-88D radar product displays the maximum reflectivities for a layer. Data is taken from all elevation angles contained in a given layer for each…
  56. layer entity An active element within a layer. [T1.630-1999]
  57. layer function A part of the activity of the layer entities. [T1.627-1993]
  58. layer index See cross-tile indexing.
  59. layer interface The boundary between two adjacent layers in the model. [T1.110-1987]
  60. layer service A capability of the (N) layer and the layers beneath it, which is provided to (N + 1) layer entities, at the boundary between the (N) layer and the (N +…
  61. layer service elements An indivisible component of the layer service made visible to the service user via layer service primitives. [T1.110-1987]
  62. layer service primitives A means for specifying in detail the adjacent layer interactions. [T1.110-1987]
  63. layer user data Data transferred between corresponding entities on behalf of the upper layer or layer management entities for which they are providing services. [T1.
  64. Layered Defense A defense that consists of several sets of weapons that operates at different phases in the trajectory of a ballistic missile.
  65. Layered Haze Haze produced when air pollution from multiple line, area or point sources is transported long distances to form distinguishable layers of discoloration…
  66. layered protocol The protocol reference model defined by layered structures based on and using the terminology of ITU-T Recommendations X.200 and X.210.
  67. layered system A system in which components are grouped, i.e., layered, in a hierarchical arrangement, such that lower layers provide functions and services that support…
  68. layering A technique for vegetative propagation, in which new plants produce adventitious roots before being severed from the parent plant.
  69. Layout The design imprinted on the felt table top with the various bets that can be made.
  70. layout manager An object responsible for sharing the available space between multiple components within a graphical container.
  71. Layout Strategies Betting systems and strategies that try to overcome the house edge simply by placing different types of bets, without trying to determine if the wheel or…
  72. layover Informal term for a period of delay required by rule. For example, when a bill or other measure is reported from committee, it may be considered on the…
  73. laziness The quality that makes you go to great effort to reduce overall energy expenditure.
  74. lb Pound.
  75. LBL Lawrence Berkeley Laboratory, Berkeley, CA.
  76. LBM Localized Battle Management/Manager(s).
  77. LBO Abbreviation for line buildout. Synonym building out.
  78. LBTS Land Based Test Site.
  79. LCC (1) See Life-Cycle Cost. (2) Launch Control Center.
  80. LCCE (1) Life-Cycle Cost. (2) Launch Control Center. (3) Land Component Commander (JCS term).
  81. LCCS Life-Cycle Contractor Support.
  82. LCD Abbreviation for liquid crystal display.
  83. LCD (Local Climatological Data) This National Climatic Data Center (NCDC) publication is produced monthly and annually for some 270 United States cities and it's territories.
  84. LCDUI (Liquid Crystal Display User Interface) LCDUI is a shorthand way of referring to the MIDP user interface APIs, contained in the javax.microedition.lcdui package.
  85. LCF Launch Control Facility.
  86. LCH A group of rare disorders in which too many Langerhans cells (a type of white blood cell) grow in certain tissues and organs including the bones, skin…
  87. LCIS A condition in which abnormal cells are found in the lobules of the breast. LCIS seldom becomes invasive cancer; however, having it in one breast…
  88. LCL 1. Abbreviation for "local" or "locally" 2. Lifting Condensation Level - the level at which a parcel of moist air becomes saturated when it is lifted dry…
  89. LCM (1) Life Cycle Management. (2) Lightweight Communications Module (USAF TelComms /Computer term).
  90. LCN Logistics Control Number (ILS term).
  91. LCOM Logistics Composite Model.
  92. LCR Abbreviation for ligase chain reaction.
  93. LCR (local continuous replication) Local continuous replication (LCR) is a single-server solution that uses built-in technology to create and maintain a copy of a storage group on a second…
  94. LCS Laser Crosslink System.
  95. LCU (Library Control Unit) connects a StorageTek tape robotic unit to a Library Management Unit (LMU) and controls the robot movement.
  96. LD50 Abbreviation for lethal dose50%. The amount of a substance required to kill 50% of the test population.
  97. LDAP A protocol for accessing directory information. LDAP or Lightweight Directory Access Protocol is used by browsers and email clients to look up email…
  98. LDAP (Lightweight Directory Access Protocol) Enables LDAP clients to access directory information from an Exchange directory. [Exchange 5.5]
  99. LDAP directory A hierarchical directory of names that can reflect an organization's structure or geography and that is accessed via the LDAP protocol.
  100. LDC Less Developed Country.