| Acronym | Sense | Language | Topics |
|---|---|---|---|
| SITP | System Integration Test Plan | In English | → Engineering, technology |
| SITT | Systems Integration of Triad Technology | In English | → Engineering, technology |
| SIU | Serial Interface Unit | In English | → Human-computer interaction |
| SIU | Signal Interface Unit | In English | → Human-computer interaction |
| SIU | Standard Interface Unit | In English | → Human-computer interaction |
| SIV | Simian Immunodeficiency Virus | In English | → Virology → Immunology and allergy → Infectious diseases |
| SIVE | Spacelab Interface Verification Equipment | In English | → Astronautics |
| SIXA | Silicon X-ray Array | In English | |
| SJ | Society of Jesus | In English | → Roman catholic church |
| SJ | Sisters of Jesus | In English | → Roman catholic church |
| SJA | Sisters of Saint Joseph of Annecy | In English | → Roman catholic church |
| SJAM | SIAM Journal of Applied Mathematics | In English | → Serial publications, periodicals → Mathematics |
| SJB | Sisters of Saint John of the Baptist | In English | → Roman catholic church |
| SJC | Saint Joseph's Congregation | In English | → Roman catholic church |
| SJC | Spacecraft Jettison Controller | In English | → Astronautics |
| SJCLI | The Scandinavian Journal of Clinical and Laboratory Investigation | In English | → Serial publications, periodicals → Medicine |
| SJCO | SIAM Journal of Control Optimization | In English | → Serial publications, periodicals → Mathematics |
| SJEAA | Stanford Journal of East Asian Affairs | In English | → Serial publications, periodicals → Area studies |
| SJMA | SIAM Journal of Mathematical Analysis | In English | → Serial publications, periodicals → Mathematics |
| SJMet | Scandinavian Journal of Metallurgy | In English | → Serial publications, periodicals → Metallurgy |
| SJNA | SIAM Journal of Numerical Analysis | In English | → Serial publications, periodicals → Mathematics |
| SJQ | Stevens-Johnson Syndrome | In English | → Dermatology → Immunology and allergy → Pharmacology, toxicology |
| SJRPP | St. Johns River Power Park | In English | → Electrical engineering |
| SJT | Scottish Journal of Theology | In English | → Serial publications, periodicals → Religion, theology → United Kingdom |
| SKA | Square Kilometer Array | In English | |
| SKAS | Society of Korean-American Scholars | In English | → Organizations and associations |
| SKCP | Saskatchewan College of Psychologists | In English | → Organizations and associations → Psychology → Canada |
| SKD | Society of Kristhudasis | In English | → Roman catholic church |
| SKEP | Scientific Knowledge for Environmental Protection (www.skep-era.net) | In English | → Research policy → Threats to the environment |
| SKOS | Simple Knowledge Organisation Systems | In English | → Knowledge management |
| SKOS | Simple Knowledge Organisation System | In English | → Data |
| SKU | Stock-Keeping Unit | In English | → Maintenance and logistics |
| SKU | Swiss Karate Union | In English | → Organizations and associations → Sport, physical exercises |
| SL | Second Life | In English | → Entertainment |
| SL | Sea Level | In English | → Marine research, oceanography |
| SL | Shelf Life | In English | |
| SL | Sound Level | In English | |
| SL | Space Laboratory | In English | → Research institutes → Astronautics |
| SL | Space Launch | In English | → Astronautics |
| SL | Spacelab | In English | → Astronautics |
| SL&I | System Load and Initialization | In English | → Computer science |
| SLA | Spray-on Lightweight Ablator | In English | |
| SLA | Superlight Ablative | In English | |
| SLA | Support and Logistics Areas | In English | → Maintenance and logistics |
| SLA | Second Language Acquisition | In English | → Education → Linguistics |
| SLA | Service Level Agreement | In English | → Law, jurisprudence → Software |
| SLAC | Stanford Linear Accelerator Center | In English | → Nuclear, atomic, and molecular physics |
| SLAENG | Space-Based Laser Engagement | In English | → Astronautics |
| SLAHTS | Stowage List And Hardware Tracking System | In English | → Computer hardware |
| SLAM | Side-Load Arrest Mechanism | In English | |
| SLAM | Simulation Language for Alternative Modeling | In English | |
| SLAM | Station Logistics And Maintainability (database) | In English | → Maintenance and logistics |
| SLAM | Standoff Land Attack Missile | In English | → Military engineering |
| SLAMAP | Space Laser Mission Analysis Program | In English | → Astronautics |
| SLAP | Space Link Access protocol | In English | → Astronomy |
| SLAPP | Strategic Lawsuits Against Public Participation | In English | → Law, jurisprudence |
| SLAR | Side-Looking Airborne Radar | In English | → Aeronautics, aircraft |
| SLAT | Supersonic Low-Altitude Target | In English | → Military engineering → Aeronautics, aircraft |
| SLATM | Supersonic Low-Altitude Target Missile | In English | → Military engineering |
| SLBD | Sea Light-Beam Director | In English | → Marine research, oceanography |
| SLBM | Submarine-Launched Ballistic Missile | In English | → Military engineering |
| SLBM | Submarine Launched Ballistic Missile | In English | → Military engineering |
| SLBS | Saint Lucia Bureau of Standards | In English | → Standardization |
| SLC | Small cell Lung Carcinoma | In English | → Chest diseases → Oncology |
| SLC | Space Launch Complex | In English | → Astronautics |
| SLC | Science of Learning Centers | In English | → Education |
| SLCA | Spacelab Contract Administration | In English | → Astronautics |
| SLCM | Spacelab Configuration Management | In English | → Astronautics |
| SLCM | Sea-Launched Cruise Missile | In English | → Military engineering |
| SLCSAT | Submarine Laser Communications Satellite | In English | → Astronautics |
| SLD | Stiff-Leg Derrick | In English | |
| SLDV | Scanner Laser Doppler Vibrometry | In English | |
| SLE | Sea-Level Equivalent | In English | → Earth sciences |
| SLE | Systemic Lupus Erythematosus = LES | Lupus Érythémateux Systémique | In French |
In English | → Immunology and allergy → Pathology |
| SLED | Space Laser Experiment Definition | In English | → Astronautics |
| SLEE | Service Logic Execution Environment | In English | → Software |
| SLEMU | Spacelab Engineering Model Unit | In English | → Astronautics |
| SLEP | Sick Leave Exchange Program | In English | → Labour, labour economics → Personnel management |
| SLF | Shuttle Landing Facility | In English | → Astronautics |
| SLFC | Selectable Low-Frequency Clock | In English | → Telecommunications |
| SLFCS | Survivable Low-Frequency Communications System | In English | → Telecommunications |
| SLIM | Scanned Long-Wave Infrared Module | In English | |
| SLIP | Serial Line Internet Protocol | In English | → Internet |
| SLJ | Spacelab Japan | In English | → Japan |
| SLKT | Survivability, Lethality, and Key Technologies | In English | → Medicine → Engineering, technology |
| SLL | Shelf-Life Limit | In English | |
| SLM | Sound-Level Meter | In English | |
| SLM | Space Laboratory Module | In English | → Research institutes → Astronautics |
| SLMI | Society of Ladies of Mary Immaculate | In English | → Roman catholic church |
| SLO | Scanning Laser Ophthalmoscope | In English | → Ophthalmology |
| SLO | Sinus Lift Operation | In English | → Surgery, orthopaedics, ophthalmology |
| SLODB | Spacelab Operational Data Book | In English | → Astronautics |
| SLOS | Star Line Of Sight | In English | |
| SLOSH | Sea, Lake, and Overland Surge due to Hurricanes | In English | → Meteorology, climatology |
| SLP | Solid Lipid Particle | In English | → Biochemistry, biophysics |
| SLP | Sex Limited Protein | In English | → Proteins |
| SLPB | Spacelab Program Board | In English | → Astronautics |
| SLPCRB | SIP Low-Profile Cable Routing Bracket | In English | |
| SLPEM | Sparta Linear Programming Effectiveness Model | In English | → Software |
| SLR | Scanning Laser Radar | In English | |
| SLS | Selective Laser Sintering | In English | |
| SLS | Softlanding Linux System | In English | → Operating systems |
| SLS | Secondary Landing Site | In English | → Aeronautics, aircraft → Astronautics |
| SLS | Spacelab Simulator | In English | → Astronautics |
| SLS | Statement-Level Simulator | In English | |
| SLSA | Shuttle Logistics Support Aircraft | In English | → Maintenance and logistics → Aeronautics, aircraft → Astronautics |
| SLSDC | Saint Lawrence Seaway Development Corporation (www.seaway.dot.gov) | In English | → Transport and postal services |
| SLSG | Suit Loop Stimuli Generator | In English | |
| SLSI | Sri Lanka Standards Institution | In English | → Standardization |
| SLSMS | Spacelab Support Module Simulator | In English | → Astronautics |
| SLSS | Spacelab Subsystem | In English | → Astronautics |
| SLSSS | Spacelab Subsystem Segment | In English | → 62878 |
| SLUC | Standard Level User Charge | In English | |
| SLUK | Spacelab Utility Kit | In English | → Astronautics |
| SLV | Space Launch Vehicle | In English | → Astronautics |
| SLW | Straight-Line Wavelength | In English | |
| SM | Standard Model | In English | → Astronomy → Physics |
| SM | Servants of Mary | In English | → Roman catholic church |
| SM | Service Module | In English | |
| SM | System Monitoring | In English | → Engineering, technology |
| SM | Systems Management | In English | → Management → Engineering, technology |
| SM | Shuttle Management | In English | → Astronautics |
| SM | Strategic Missile | In English | → Military engineering |
| SM | Subcontract Management | In English | → Contract law |
| SM | Support Module | In English | |
| SM | Standard Missile | In English | → Military engineering |
| SM&S | Systems Management and Sequencing | In English | → Engineering, technology |
| SM/PM | Systems Management/Performance Monitor | In English | → Engineering, technology |
| SMA | Simulation Model Adapter | In English | |
| SMA | Supply Management, Army | In English | → Maintenance and logistics → Military affairs |
| SMAB | Solid Motor Assembly Building | In English | → Vehicle engineering |
| SMAP | Short and Medium Term Priority Environmental Action Plan | In English | → 5023 |
| SMArc | Solid Mechanics Archives | In English | → Serial publications, periodicals → Mechanics |
| SMART | Statistical Multilingual Analysis for Retrieval and Translation | In English | → Computer-based techniques → Translation |
| SMARTS | Simulation, Monitoring, Analysis, Reduction, and Test | In English | → Engineering, technology |
| SMaS | Smart Material Structures | In English | → Serial publications, periodicals → Materials science |
| SMATH | Satellite Materials And Target Hardening | In English | → Astronautics |
| SMAW | Shielded Metal Arc Welding | In English | → Metallurgy |
| SMAW | Shoulder-Launched Multipurpose Assault Weapon | In English | → Military engineering |
| SMB | Space Meteorology Branch | In English | → Meteorology, climatology → Astronautics |
| SMBL | Systems Biology Markup Language | In English | → Programming languages → Data → Biological sciences |
| SMBS | School of Medicine and Biomedical Sciences | In English | → Education → Biological sciences → Biotechnology → Medicine |
| SMC | Sisters of Mount Calvary | In English | → Roman catholic church |
| SMC | Standard Model of Cosmology | In English | → Cosmology |
| SMC | Scientific Manpower Commission | In English | → Organizations and associations |
| SMCC | Shuttle Mission Control Center | In English | → Astronautics |
| SmCES | Smithsonian Contributions to Earth Sciences | In English | → Serial publications, periodicals → Earth sciences |
| SMCH | Standard Mixed-Cargo Harness | In English | |
| SMCM | Small Module Core Memory | In English | → Memories |
| SMCS | Separation Monitoring Control Unit | In English | |
| SMD | Shop Manufacturing Development | In English | |
| SMD | Spacelab Mission Development | In English | → Astronautics |
| SMD | Special Measuring Device | In English | |
| SMD | Structures and Mechanics Division | In English | → Mechanical engineering |
| SMD | System Measuring Device | In English | |
| SMD | Stanford Microarray Database | In English | → Data → Genetics → Biotechnology |
| SMDC | Shielded Mild Detonating Cord | In English | |
| SMDM | Small Multiplexer/Demultiplexer | In English | |
| SME | Solar Mesosphere Explorer | In English | → Astronomy → Earth sciences |
| SME | Small and Medium Enterprises = KMU | Kleine und Mittlere Unternehmen | In German = PME | Petites et Moyennes Entreprises | In French = KMO | Kleine of Middelgrote Onderneming | In Dutch |
In English | → 3384 |
| SME | Small & Medium Entities | In English | → Economics |
| SMED | Single Minute Exchange of Dies | In English | |
| SMEK | Summary Message Enable Keyboard | In English | → Computer hardware |
| SMES | Shuttle Mission Engineering Simulator | In English | → Astronautics |
| SMES | Shuttle Mission Evaluation Simulation | In English | → Astronautics |
| SMES | Superconducting Magnetic Energy Storage | In English | → Energy economics |
| SMF | Standard MIDI File | In English | → Files → Music |
| SMG | Special Mobile Group | In English | |
| SMG | Space Flight Meteorology Group | In English | → Meteorology, climatology → Astronautics |
| SMH | Society for Military History | In English | → Organizations and associations → History → Military affairs |
| SMH | Sidney Morning Herald | In English | → Newspapers, journalism |
| SMHI | Saskatchewan Municipal Hail Insurance (Association) (www.smhi.ca) | In English | → Associations → Insurance → Canada |
| SMHI | Swedish Meteorological and Hydrological Institute (www.smhi.se) = SMHI | Sveriges meteorologiska och hydrologiska institut | In Swedish |
In English | → Research institutes → Meteorology, climatology → Hydrology → Sweden |
| SMI | Sisters of Mary Immaculate | In English | → Roman catholic church |
| SMI | Student Medical Insurance | In English | → Insurance → Medicine → Higher education, universities |
| SMIA | Single Multiplexer Interface Assembly | In English | |
| SMIG | Southern Minnesota Internet Group (www.smig.net) | In English | → Organizations and associations → Internet → United States |
| SMIL | Synchronized Multimedia Integration Language | In English | → Programming languages → Computer-based techniques → Cinema, movies |
| SMILES | Simplified Molecular Input Line Entry Specification | In English | → Data → Chemistry |
| SMILS | Sonobuoy Missile Impact Location System | In English | → Military engineering |
| SMIP | Seasonal Prediction Model Intercomparison Project | In English | → Meteorology, climatology |
| SMIRR | Shuttle Multispectral Infrared Radiometer | In English | → Astronautics |
| SMIS | STDN Management Information System | In English | |
| SMIT | System Management Interface Tool | In English | → Human-computer interaction → Software |
| SML | Spacecraft Markup Language | In English | → Programming languages → Astronautics |
| SML | Structure Mold Line | In English | |
| SMM | Solar Maximum Mission | In English | → Astronomy |
| SMM | Subcontract Management Manual | In English | → Management → Contract law |
| SMM | Subsystem Management Manual | In English | → Management → Engineering, technology |
| SMM | Subsystem Measurement Management | In English | |
| SMM | Society for Marine Mammalogy (www.marinemammalogy.org) | In English | → Organizations and associations → Mammals |
| SmMaS | Smart Materials and Structures | In English | → Serial publications, periodicals → Materials science |
| SMMD | Specimen Mass Measurement Device | In English | |
| SMMI | Salesian Sisters of Mary Immaculate | In English | → Roman catholic church |
| SMMR | Scanning Multichannel Microwave Radiometer | In English | |
| SMO | Social Media Optimization | In English | → Advertising |
| SMOC | Simulation Mission Operation Computer | In English | → Computer hardware |
| SMOW | Standard Mean Ocean Water | In English | → Marine research, oceanography |
| SMP | Supercooled Molten Particle | In English | → Biochemistry, biophysics |
| SMP | Software Management Plan | In English | → Software → Management |