| Acronym | Sense | Language | Topics |
|---|---|---|---|
| LRC | Linear Responsibility Chart | In English | → Management |
| LRCA | Long-Range Combat Aircraft | In English | → Military engineering → Aeronautics, aircraft |
| LRD | Launch Recovery Division | In English | → Astronautics |
| LRD | Launch Requirements Document | In English | → Astronautics |
| LRE | Latest Revised Estimate | In English | |
| LRE | Liquid Rocket Engine | In English | → Astronautics |
| LRES | Liquid Rocket Engine Stability Program | In English | → Astronautics |
| LRF | Laogai Research Foundation | In English | → Foundations |
| LRF | Liquid Rocket Fuel | In English | → Astronautics |
| LRIP | Low-Rate Initial Production | In English | → Engineering, technology |
| LRO | Lunar Reconnaissance Orbiter | In English | → Astronomy → Astronautics |
| LRO | Large Radio Observatory | In English | → Observatories |
| LROSS | Long-Range Optical System Study | In English | |
| LRP | Long-Range Plan | In English | → Management |
| LRQA | Lloyd's Register Quality Assurance | In English | → Quality management |
| LRR | Launch Readiness Review | In English | → Astronautics |
| LRR | Living Reviews in Relativity | In English | → Serial publications, periodicals → Physics |
| LRSI | Low-temperature Reusable Surface Insulation | In English | |
| LRSP | Living Reviews in Solar Physics | In English | → Serial publications, periodicals → Astronomy → Physics |
| LRTAP | Long-range Transboundary Air Pollution | In English | → Meteorology, climatology |
| LRU | Line Replaceable Unit | In English | → Applied sciences, technology |
| LRU | Lowest Replaceable Unit | In English | |
| LRV | Launch Readiness Verification | In English | → Astronautics |
| LRV | Long-Range Video | In English | |
| LRV | Lunar Roving Vehicle | In English | → Vehicle engineering → Astronautics |
| LRW | Left Rendezvous Window | In English | → Astronautics |
| LS | Landing Site | In English | → Astronautics |
| LS | Launch Sequence | In English | → Astronautics |
| LS | Launch Site | In English | → Astronautics |
| LS/PPF | Launch Site PAyload Processing Facility | In English | → Astronautics |
| LS/ST | Light Shield/Star Tracker | In English | → Astronomy |
| LSA | Launch Services Agreement | In English | → Astronautics |
| LSA | Logistics Support Analysis | In English | → Maintenance and logistics |
| LSACN | Logistics Support Analysis Control Number | In English | → Maintenance and logistics |
| LSAH | Launch Site Accommodations Handbook | In English | → Astronautics |
| LSAP | Launch Sequence Applications Program | In English | → Astronautics |
| LSAP | Logistics Support Analysis Plan | In English | → Maintenance and logistics |
| LSAP | Lost Ski Areas Project | In English | → Sport, physical exercises |
| LSAR | Logistics Support Analysis Record | In English | → Records management → Maintenance and logistics |
| LSAS | Logistics Support Analysis Strategy | In English | → Maintenance and logistics |
| LSAT | Law School Admissions Test | In English | → Education → Law, jurisprudence |
| LSB | Least Significant Bit | In English | → Software |
| LSB | Launch Support Building | In English | → Astronautics |
| LSC | Learning and Skills Council | In English | → Education |
| LSC | Little Sisters of Christ | In English | → Roman catholic church |
| LSC | Launch Services Contract(or) | In English | → Vehicle engineering |
| LSC | Launch Support Controller | In English | → Vehicle engineering |
| LSC | Linear-Shaped Charge | In English | |
| LSCA | Logistics Support Cost Analysis | In English | → Prices → Maintenance and logistics |
| LSD | Lysergic Acid Diethylamide | In English | → Biochemistry, biophysics |
| LSD | Launch Systems Data | In English | → Vehicle engineering |
| LSD | Low-Speed Data | In English | → Data |
| LSDA | Local Spin Density Approximation | In English | → Atomic physics |
| LSDP | Little Sisters of Divine Providence | In English | → Roman catholic church |
| LSDP | Latin Sisters Design Productions | In English | → Regional planning → Drawing and applied arts |
| LSE | Low Surface Energy | In English | |
| LSE | Launch Support Equipment | In English | → Vehicle engineering |
| LSE | Life Support Equipment | In English | → Medicine |
| LSEAT | Launch Systems Evaluation Advisory Team | In English | → Vehicle engineering |
| LSF | Laboratory Simulation Facility | In English | |
| LSF | Launch Support Facility | In English | → Vehicle engineering |
| LSFR | Launch Site Flow Review | In English | → Vehicle engineering |
| LSG | Linear Sequence Generator | In English | |
| LSI | Latent Semantic Indexing | In English | → Computer-based techniques → Semiotics |
| LSI | Large-Scale Integration | In English | → Engineering, technology |
| LSIC | Large-Scale Integrated Circuit | In English | → Electronics |
| LSIC | Launch Support Integration Contractor | In English | → Astronautics |
| LSIC | Launch System Integration Contractor | In English | → Astronautics |
| LSID | Launch Sequence and Interlock Document | In English | → Astronautics |
| LSJ | Liddell-Scott-Jones | In English | → Dictionaries → Language, linguistics, literature |
| LSM | Life Science Module | In English | → Biological sciences |
| LSM | Logistics Support Manager | In English | → Maintenance and logistics |
| LSMDB | Logistics Simulation Models and Data Bases | In English | → Maintenance and logistics → Knowledge management |
| LSMS | Little Sisters of Mother of Sorrows | In English | → Roman catholic church |
| LSO | Landing Support Officer | In English | → Astronautics |
| LSO | Large Solar Observatory | In English | → Observatories → Solar system |
| LSO | Launch Support Operations | In English | → Vehicle engineering |
| LSO | Life Systems Officer | In English | → Medicine |
| LSOC | Launch Support Operations Contractor | In English | → Astronautics |
| LSOC | Lockheed Space Operations Company | In English | → Astronautics |
| LSP | Least Significant Portion | In English | |
| LSP | Language for Specific Purposes | In English | → Language, linguistics, literature |
| LSP | Linguistic Society of the Philippines | In English | → Organizations and associations → Linguistics |
| LSPDF | Life Science Payload Development Facility | In English | → Astronautics → Biological sciences |
| LSPPS | Logistics Support Plan for Preoperational Support | In English | → Maintenance and logistics |
| LSR | Land-Sea Rescue | In English | |
| LSR | Laser Scanning Radar | In English | |
| LSR | Launch Site Recovery | In English | → Astronautics |
| LSR | Launch Support Request | In English | → Astronautics |
| LSR | Logistics Shop Release | In English | → Maintenance and logistics |
| LSR | Logistics Success Rate | In English | → Maintenance and logistics |
| LSRM | Life Science Research Module | In English | → Biological sciences |
| LSRS | Laboratory for Spintronics Research in Semiconductors | In English | → Research institutes → Electronics |
| LSS | Landing and Separation Simulator | In English | → Astronautics |
| LSS | Large Space Structure | In English | → Astronautics |
| LSS | Launch Site Support | In English | → Vehicle engineering |
| LSS | Launch Support Services | In English | → Vehicle engineering |
| LSS | Life Support System | In English | → Medicine |
| LSS | Load Sensing System | In English | |
| LSS | LightScribe System Software | In English | → Computer science |
| LSSA | Logistics Systems Support Agency | In English | → Maintenance and logistics |
| LSSC | Launch Site Support Contractor | In English | → Vehicle engineering |
| LSSD | Level-Sensitive Scan Design | In English | |
| LSSE | Laser Sensor Support Equipment | In English | |
| LSSL | Life Sciences Space Laboratory | In English | → Research institutes → Biological sciences → Astronautics |
| LSSM | Launch Site Support Manager | In English | → Vehicle engineering |
| LSSP | Launch Site Support Plan | In English | → Vehicle engineering |
| LSSRC | Life Sciences Shuttle Research Centrifuge | In English | → Biological sciences → Astronautics |
| LSST | Launch Site Support Team | In English | → Vehicle engineering |
| LST | Lithuanian Standards Board | In English | → Standardization |
| LST | Large Space Telescope | In English | → Astronomy |
| LST | Large Stellar Telescope | In English | → Astronomy |
| LST | Launch Support Team | In English | → Vehicle engineering |
| LST | Liquid Storage Tank | In English | |
| LST | Local Standard Time | In English | → Standardization |
| LSTD | Laser System Technology Demonstration | In English | |
| LSTE | Launch Site Transportation Equipment | In English | → Transport and postal services → Astronautics |
| LSTS | Launch Site Test Set | In English | → Astronautics |
| LSU | Life Support Umbilical | In English | → Medicine |
| LSUR | Launch Site Utilization Report | In English | → Vehicle engineering |
| LTA | Lower Torso Assembly | In English | |
| LTC | Long Term Care | In English | → Medicine |
| LTCM | Long Term Capital Management | In English | → Financial markets |
| LTD | Long-Term Disability | In English | |
| LTD | Long Term Disability | In English | → Medicine |
| LTDT | Langley Transonic Dynamics Tunnel | In English | |
| LTE | Long Term Evolution | In English | → Telecommunications |
| LTE | London Tests of English | In English | → Education → Language, linguistics, literature |
| LTER | Long-Term Ecological Research | In English | → Ecology |
| LTG | Linear Tangent Guidance | In English | |
| LTH | Lethality and Target Hardening | In English | |
| LTHIS | Laboratory Test Hardware Inventory Status | In English | → Computer hardware |
| LTL | Linear Temporal Logic | In English | → Software → Mathematics |
| LTM | Lead Time Matrix | In English | |
| LTM | Load Transformation Matrix | In English | |
| LTN | London Technology Network | In English | → Organizations and associations → Engineering, technology → United Kingdom |
| LTP | Long-term potentiation | In English | → Biological sciences |
| LTP | Low Temperature Physics | In English | → Serial publications, periodicals → Physics |
| LTPS | Low-Temperature Polycrystalline Silicon | In English | → Metallurgy |
| LTR | Long Terminal Repeat | In English | → Genetics |
| LTR | Laboratory Test Report | In English | |
| LTT | Laboratory of Thermal Turbomachines | In English | → Research institutes → Mechanical engineering |
| LTTD | Low Temperature Thermal Desalination | In English | → Environmental technology, water supply, waste management |
| LTV | Lunar Transfer Vehicle | In English | → Vehicle engineering → Astronautics |
| LTV | Loan-to-Value | In English | → Finance |
| LTVC | Linear Terminal Velocity Constraint | In English | |
| LTWA | Library of Tibetan Works & Archives | In English | → Libraries |
| LTWG | Launch Test Working Group | In English | → Vehicle engineering |
| LubEn | Lubrication Engineering | In English | → Serial publications, periodicals → 521 |
| LUCA | Last Universal Common Ancestor | In English | → Biological sciences |
| LUG | Linux Users' Groups = GUL | Groupes d'Utilisateurs de Linux | In French |
In English | → Organizations and associations → Operating systems |
| LUGOAL | Linux User Group Of ALgeria (www.lugoal.org) | In English | → Organizations and associations → Operating systems → Algeria |
| LULAC | League of United Latin American Citizens | In English | → Organizations and associations |
| LULUCF | Land Use, Land Use Change and Forestry | In English | → 5023 → Agricultural sciences → Forestry |
| LUMC | Leiden University Medical Center (www.lumc.nl) | In English | → Higher education, universities → Medicine → Netherlands |
| LUMO | Lowest Unoccupied Molecular Orbital | In English | → Chemistry |
| LUPI | Laser Unequal Path Interferometer | In English | |
| LUPWT | Langley Unitary Plan Wind Tunnel | In English | |
| LUS | Liquid Upper Stage | In English | |
| LUSU | Laurentian University Staff Union = SEUL | Syndicat des Employés de l'Université Laurentienne | In French |
In English | → Organizations and associations → Labour, labour economics → Higher education, universities |
| LUT | Launch Umbilical Tower | In English | → Astronautics |
| LUT | Limited User Test | In English | |
| LUTEA | Land Use in Temperate East Asia | In English | → Ecology → Agricultural sciences |
| LUV | Large Unilamellar Vesicle | In English | → Biotechnology → Pharmacology, toxicology |
| LV | Launch Vehicle | In English | → Vehicle engineering |
| LV | Lift Vector | In English | |
| LV | Low-Voltage | In English | → Electrical engineering |
| LVCSR | Large Vocabulary Speech Recognition | In English | → Computer-based techniques → Linguistics |
| LVD | Low Voltage Directive | In English | → Electrical engineering |
| LVDC | Launch Vehicle Digital Computer | In English | → Computer hardware → Astronautics |
| LVDT | Linear Variable Differential Transformer | In English | |
| LVDT | Linear Velocity Displacement Transducer | In English | |
| LVDT | Linear Voltage Differential Transformer | In English | → Electrical engineering |
| LVE | Low-Voltage Electronics | In English | → Electronics |
| LVE-CCC | Low Voltage Electrical Equipment Certification Coordination Committee | In English | → Electrical engineering |
| LVEF | Left Ventricular Ejection Fraction = FEVG | Fraction d’Éjection du Ventricule Gauche | In French |
In English | → Cardiology → Blood and circulatory system |
| LVFO | Lake Victoria Fisheries Organization | In English | → Organizations and associations → Fishing, hunting |
| LVFRR | Launch Vehicle Flight Readiness Review | In English | → Aeronautics, aircraft → Astronautics |
| LVH | Left Ventricular Hypertrophy | In English | → Cardiology |
| LVIP | Launch Vehicle Integration Plan | In English | → Aeronautics, aircraft → Astronautics |
| LVIS | Logistics Verification Information System | In English | → Maintenance and logistics |
| LVO | Launch Vehicle Operations | In English | → Aeronautics, aircraft → Astronautics |
| LVP | Low-Voltage Pressure | In English | → Electrical engineering |
| LVPS | Low-Voltage Power Supply | In English | → Electrical engineering |
| LVR | Low-Voltage Release | In English | → Electrical engineering |
| LVRS | Lung Volume Reduction Surgery | In English | → Chest diseases |
| LVS | Linux Virtual Server | In English | → Operating systems → Networks, communication |
| LVS | Launch Vehicle Simulator | In English | → Aeronautics, aircraft → Astronautics |
| LVS | Launch Vehicle System | In English | → Vehicle engineering |
| LVSG | Launch Vehicle Study Group | In English | → Vehicle engineering |
| LVSSTS | Launch Vehicle Safety System Test Set | In English | → Vehicle engineering |
| LVT | LPAR Validation Tool | In English | → Software |
| LVTC | Launch Vehicle Test Conductor | In English | → Vehicle engineering |
| LWA | Local Wavefront Analyzer | In English | |
| LWBR | Light Water Breeder Reactor | In English | → Nuclear technology |
| LWCHWR | Light Water Cooled Heavy Water Reactor | In English | → Nuclear technology |
| LWD | Launch Window Display | In English | → Astronautics |
| LWG | Logistics Working Group | In English | → Maintenance and logistics |
| LWGR | Light Water Cooled Graphite Reactor | In English | → Nuclear technology |
| LWIR | Long-Wavelength Infrared | In English | → Physics |