Appendix Acronyms L

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Acronyms - L

L1 Lagrange Point #1 35,000 Miles above moon [Space]

L2 Lagrange Point #2 40,000 Miles behind moon [Space]

L3 Lagrange Point #3 (?? 35,000 Miles below moon) [Space]

L4 Lagrange Point #4 240,000 mile Earth orbit [Space]

L5 Lagrange Point #5 240,000 mile Earth orbit [Space]

LA Los Angeles

LA Louisiana

LA Low Altitude

LADAR LAser Detection And Ranging

LAM Master of Liberal Arts

LAMA Local Automatic Message Accounting [Telephony]

LAN Local Apparent Noon

LAN Local Area Network

LANL Los Alamos National Laboratory [Space]

LANL Los Alamos (NM) National Laboratory

LAPB Link Access Procedure (Balanced)

LAPD Link Access Procedure (??)

LAPD Los Angeles (CA, US) Police Department

LAR Local Acquisition Radar

LaRC Langley Research Center (NASA) [Space]

LASER Light Amplification by Stimulated Emission of Radiation

LAT Local Apparent Time

LATA Local Access and Transport Area [Telephony]

LAX Los Angeles International Airport

LB Light Bomber

LB pound (LiBra)

LBHS Long Beach High School

LBL Lawrence Berkeley (Calif.) Labs

LBS Pounds

LC inductor-Capacitor circuit (as in filters, L is symbol inductance)

LCD Liquid Crystal Display

LCD Lowest Common Denominator

LCDR Lieutenant Commander

LCL Less than Carload Lot [Railroading]

LCL Lunar Cargo Lander [NASA OEXP]

LCM Least Common Multiple

LCM Life Cycle Management

LCS Laboratory for Computer Science (of MIT)

LCT Landing Craft Tanks

LD Long Distance [Telephony]

LDC Long Distance Carrier [Telephony]

LDEF Long Duration Exposure Facility [Space, NASA]

LDF Large Deployable Reflector [Space]

LDL Low Density Lipoprotein

LDX Long Distance eXtender [Telephony]

LEAP Low-power Enhanced At Portable

LEC Local Exchange Carrier [Telephony]

LED Light Emitting Diode

LEM Lunar Excursion Module (a.k.a. LM) (Apollo spacecraft) [Space]

LEO Low Earth Orbit [Space]

LEP Large Electron-Positron collider [CERN]

LeRC Lewis Research Center (NASA) [Space]

LEST Large Earth-based Solar Telescope [Space]

LF Low Frequency (30-300KHz)

LFSA List of Frequently Seen Acronyms (!) [Space]

LGA Low Gain Antenna [Space]

LGM Little Green Men [Space]

LH Left Hand

LH Liquid Hydrogen (also LH2 or LHX) [Space]

LH Lower Half

LH Luteinizing Hormone (same as ISCH)

LHC Large Hadron Collider [CERN]

LHD Litterarum Humaniorum Doctor (doctor of human letters)

LHS Left Hand Side

LI Long Island

LIFIA Laboratoire d'Informatique Fondamentale et d'Intelligence Artificielle

LIFO Last In First Out (see FIFO)

LINC Laboratory INstrument Computer

LISA Large Installation Systems Administration (USENIX specific?)

LISP LISt Processing Language

LIU Line Interface Unit

LL Late Latin

LL Long Lines [Telephony]

LLB Legum Baccalaureus (bachelor of laws)

LLD Legum doctor (doctor of laws)

LLN Line Link Network [Telephony]

LLNL Lawrence Livermore National Laboratories

LLO Low Lunar Orbit [Space]

LLOX Lunar Liquid Oxygen [Space]

LLP Line Link Pulsing [Telephony]

LM Life Master (Contract Bridge ranking)

LM Lunar Module (a.k.a. LEM) (Apollo spacecraft) [Space]

LMC Large Magellanic Cloud (see SMC)

LMC Large Magellanic Cloud [Space]

LMOS Line Maintenance Operations System [Telephony, AT&T]

LN2 Liquid N2 (Nitrogen) [Space]

LNG Liquified Natural Gas

LOA Lands of Adventure

LOFT Launch Operations Flight Test [Space]

LOOPS Lisp Object Oriented Programming System

OP Lines Of Position

LOSF Lunar Orbit Staging Facility [Space]

LOTS Low Overhead Timesharing System

LOX Liquid Oxygen

OX Liquid OXygen [Space]

LP Long Play(ing) (record)

LP Low Pressure

PC Linear Predictive Coding (speech processing)

LPDA Link Problem Determination Aid

LPF League for Programming Freedom

LPG Liquefied Petroleum Gas

LPG Low Pressure Gas

LPL Lunar Personnel Lander [NASA OEXP]

LPN Licensed Practical Nurse

LPP Licensed Program Products

LPR Line PrinteR

LPT Lunar Propellant Tanker [NASA OEXP]

LPV Lunar Piloted Vehicle [NASA OEXP]

LRB Liquid Rocket Booster [Space]

LRBM Long Range Ballistic Missile

LRC Longitudinal Redundancy Character

LRU Least Recently Used

LRU Line Replaceable Unit

LRV Light Rail Vehicle [Railroading]

LS Left Side

LS Letter Signed

LS Locus Sigilli (place of seal)

LSAP Logical(?, maybe Link) Service Access Point [OSI, Networking]

LSB Least Significant Bit; Least Significant Byte

LSB Lower Side Band

LSC Lecture Series Committee (of MIT)

LSC LightSpeed C

LSD Least Significant Digit

LSD LySergic acid Diethylamide

LSD pounds (Libra), shillings (Sestertii), and (old) pence (Denarii)

LSI Large Scale Integration

LSP LightSpeed Pascal

LSR Local Standard of Rest [Space]

LSS Life Support System

LSS Loop Switching System

LSSD Level-Sensitive Scan Detection

LT Long Ton

LT Low Tension

LTC Lieutenant Colonel

LTJG Lieutenant Junior Grade

LTL Less than Truckload Lot

LTP Lunar Transient Phenomenon [Space]

LUG Local Users Group

LUT Look-Up Table

LWM Low-Water Mark

LWT London Weekend Television [Corporate name]

LZ Landing Zone