| Se | Selenium = Se | Sélénium | In French = Se | Selenium | In Afrikaans = Se | سيلينيوم | In Arabic = Se | Селен | In Belarusian = Se | Селен | In Bulgarian = Se | সেলেনিয়াম | In Bengali = Se | Selen | In Bosnian = Se | Seleni | In Catalan = Se | Seleniu | In Corsican = Se | Selen | In Czech = Se | Selen | In Danish = Se | Selen | In German = Se | Σελήνιο | In Greek = Se | Selenium | In English = Se | Seleno | In Esperanto = Se | Selenio | In Spanish = Se | Seleen | In Estonian = Se | سلنیوم | In Persian = Se | Seleeni | In Finnish = Se | Seleni | In Friulian = Se | Selenio | In Galician = Se | סלניום | In Hebrew = Se | सेलेनियम | In Hindi = Se | Selenij | In Croatian = Se | Selenyòm | In Haitian Creole = Se | Szelén | In Hungarian = Se | Սելեն | In Armenian = Se | Selenium | In Indonesian = Se | Selenio | In Ido = Se | Selen | In Icelandic = Se | Selenio | In Italian = Se | セレン | In Japanese = Se | lurcmu | In Lojban = Se | 셀레늄 | In Korean = Se | Selen | In Letzeburgesh = Se | Selenas | In Lithuanian = Se | Selēns | In Latvian = Se | Селен | In Macedonian = Se | सेलेनियम | In Marathi = Se | Selen | In Low German = Se | Seleen | In Dutch = Se | Selen | In Nynorsk = Se | Selen | In Norwegian = Se | Selèni | In Occitan = Se | Selen | In Polish = Se | Selênio | In Portuguese = Se | Silinyu | In Quechua = Se | Seleniu | In Romanian = Se | Селен | In Russian = Se | Sileniu | In Sicilian = Se | Selen | In Serbo-Croatian = Se | Selén | In Serbian = Se | Selen | In Slovenian = Se | Селен | In Serbian = Se | Selen | In Swedish = Se | Seleni | In Swahili = Se | செலீனியம் | In Tamil = Se | ซีลีเนียม | In Thai = Se | Selenyum | In Turkish = Se | Селен | In Ukrainian = Se | Selen | In Uzbek = Se | 硒 | In Chinese |
In Latin | → Chemistry |
| Se | Selen = (look above) |
In Letzeburgesh | → Chemistry |
| Se | Selenas = (look above) |
In Lithuanian | → Chemistry |
| Se | Selēns = (look above) |
In Latvian | → Chemistry |
| Se | Селен = (look above) |
In Macedonian | → Chemistry |
| Se | Selênio = (look above) |
In Portuguese | → Chemistry |
| Se | Selen = (look above) |
In Swedish | → Chemistry |
| SEA | Statistical Energy Analysis | In English | → Physics |
| SEA-EAT | South-East Asia Earthquake and Tsunami Blog | In English | → Seismology, earthquakes |
| SEACAM | Secretariat for Eastern African Coastal Area Management | In English | → International relations → Nature and society → Environmental technology, water supply, waste management |
| SEAL | Software-Optimized Encryption Algorithm | In English | → Software → Mathematics |
| SEARP | South-East Asia Rainforest Research Programme | In English | → Ecology |
| SED | Schweizerischer Erdbebendienst (www.seismo.ethz.ch) | In German | → Organizations and associations → Seismology, earthquakes |
| SedG | Sedimentary Geology (www.elsevier.com/locate/sedgeo) | In English | → Serial publications, periodicals → Earth sciences |
| SEDIC | Sociedad Española de Documentación e Información Científica | In Spanish | → Libraries |
| Sedim | Sedimentology | In English | → Serial publications, periodicals → Earth sciences |
| SEEC | Scottish Energy and Environment Conference | In English | → Organizations and associations → Nature → Energy economics |
| SEEJ | Society of Environmental Engineers Journal | In English | → Serial publications, periodicals → Environment, environmental sciences → Environmental technology, water supply, waste management |
| SEF | Space Environmental Facility | In English | → Astronomy → Spaceflight engineering, astronautics |
| SEG | Society of Economic Geologists | In English | → Organizations and associations → Economic geology |
| SEGeo | Seismology and Exploration Geophysics | In English | → Serial publications, periodicals → Geophysics → Seismology, earthquakes |
| SEM | Space Environment Monitoring | In English | → Astronomy → Spaceflight engineering, astronautics |
| SEM | Service d'Économie Maritime | In French | → Economics → Marine research, oceanography → Fishing, hunting |
| SENACYT | Secretaría Nacional de Ciencia y Tecnología | In Spanish | → Public administration, government → Applied sciences, technology |
| SenAR | Sendai Astronomiaj Raportoj | In Esperanto | → Serial publications, periodicals → Astronomy |
| SEOS | Synchronous Earth Observation Satellite | In English | → Astronomy → Spaceflight engineering, astronautics |
| SerAJ | Serbian Astronomical Journal | In English | → Serial publications, periodicals → Astronomy |
| SERF | Space Environment Research Facility | In English | → Astronomy → Environment, environmental sciences |
| SESAR | Solid Earth SAmple Registry (www.geosamples.org) | In English | → Earth sciences |
| SETI | Search for Extraterrestrial Intelligence | In English | → Astronomy |
| SF | Star Field | In English | → Cosmology |
| SFBMN | Société Française de Biologie et Médecine Nucléaire | In French | → Organizations and associations → Biological sciences → Medicine |
| SFBR | Southwest Foundation for Biomedical Research (www.sfbr.org) | In English | → Foundations → Biological sciences → Biotechnology → Medicine |
| SFMH | Sondeur Multifaisceaux Halieutique | In French | → Marine research, oceanography |
| SFO | Société Française d’Optique | In French | → Organizations and associations → Optics |
| SGC | Stabilized Ground Cloud | In English | → Meteorology, climatology → Spaceflight engineering, astronautics |
| SGC | Server Gated Cryptography | In English | → Internet → Mathematics |
| SGEMP | Space-Generated Electromagnetic Pulse | In English | → Astronomy |
| SGeo | Surveys in Geophysics | In English | → Serial publications, periodicals → Geophysics |
| SGI | Società Geologica Italiana | In Italian | → Organizations and associations → Earth sciences |
| SGORS | Studies in Geophysical Optics and Remote Sensing | In English | → Serial publications, periodicals → Geophysics → Geodesy, cartography |
| SGX | Service Général des Rayons X | In French | → Nuclear, atomic, and molecular physics |
| SHA | Sidereal Hour Angle | In English | → Astronomy |
| SHA | Secure Hash Algorithm | In English | → Computer science → Mathematics |
| SHAD | Stellar Horizon Attitude Determination | In English | → Astronomy |
| SHAD | Stellar Horizon Atmospheric Dispersion | In English | → Astronomy → Meteorology, climatology |
| SHAR | Stellar Horizon Atmospheric Refraction | In English | → Astronomy |
| SHEP | Surveys in High Energy Physics | In English | → Serial publications, periodicals → Nuclear, atomic, and molecular physics |
| Shh | Sonic Hedgehog | In English | → Biological sciences |
| SHMPS | Sources in the History of Mathematics and Physical Sciences | In English | → Serial publications, periodicals → Mathematics → Physics → History |
| shRNA | Short hairpin Ribonucleic Acid | In English | → Genetics → Biochemistry, biophysics |
| ShWav | Shock Waves | In English | → Serial publications, periodicals → Acoustics |
| SIAM | Society of Industrial and Applied Mathematics | In English | → Serial publications, periodicals → Mathematics → Engineering, technology |
| SIBLING | Small Integrin Binding Ligand N-linked Glycoprotein | In French | → Biochemistry, biophysics |
| SICB | Society for Integrative and Comparative Biology (www.sicb.org) | In English | → Organizations and associations → Biological sciences |
| SICI | Società Italiana di Citologia | In Italian | → Organizations and associations → Cytology |
| SICI | Sistema Informativo Catastrofi Idrogeologiche | In Italian | → Earth sciences |
| SICTOM | Syndicat Intercommunal de Collecte et Traitement des Ordures Ménagères | In French | → Nature → Environmental technology, water supply, waste management |
| SIE | Système d'Information Environnementale | In French | → Nature → Environment, environmental sciences |
| SIE | Système d'Information sur l'Eau | In French | → Knowledge management → Hydrology → 627 → Environmental technology, water supply, waste management |
| SIFC | Stable Isotope Fractionation Calculator = CFIS | Calculateur du Fractionnement des Isotopes Stables | In French |
In English | → Atomic physics |
| SIFCOM | Structures des Interfaces et Fonctionnalité des Couches Minces | In French | → Physics |
| SIMAC | SIMulateur d'Agitation Côtière | In French | → Marine research, oceanography |
| SiMaJ | Siberian Mathematical Journal | In English | → Serial publications, periodicals → Mathematics |
| SIMAP | Similarity Matrix of Proteins | In English | → Biochemistry, biophysics |
| SIMCAT | Simulate Observations Using Space Catalog | In English | → Astronomy |
| SiMol | Single Molecules | In English | → Serial publications, periodicals → Biochemistry, biophysics |
| SIMS | Secondary Ion Mass Spectroscopy | In English | → Chromatography, mass spectrography |
| SINE | Short Interspersed Nuclear Element | In English | → Genetics |
| SIRTF | Shuttle Infrared Telescope Facility | In English | → Astronomy → Spaceflight engineering, astronautics |
| SIRTF | Space Infrared Telescope Facility | In English | → Astronomy |
| SIS | Scanning Imaging Spectrometer | In English | → Analytical chemistry |
| SISEX | Shuttle Imaging Spectrometer Experiment | In English | → Astronomy → Analytical chemistry → Spaceflight engineering, astronautics |
| SIV | Simian Immunodeficiency Virus | In English | → Virology → Immunology and allergy → Infectious diseases |
| SJAM | SIAM Journal of Applied Mathematics | In English | → Serial publications, periodicals → Mathematics |
| SJCO | SIAM Journal of Control Optimization | In English | → Serial publications, periodicals → Mathematics |
| SJMA | SIAM Journal of Mathematical Analysis | In English | → Serial publications, periodicals → Mathematics |
| SJNA | SIAM Journal of Numerical Analysis | In English | → Serial publications, periodicals → Mathematics |
| SKS | Subkommission für Kreide-Stratigraphie | In German | → Organizations and associations → Stratigraphy |
| SL | Sea Level | In English | → Marine research, oceanography |
| SLAC | Stanford Linear Accelerator Center | In English | → Nuclear, atomic, and molecular physics |
| SLAP | Space Link Access protocol | In English | → Astronomy |
| SLBD | Sea Light-Beam Director | In English | → Marine research, oceanography |
| SLE | Sea-Level Equivalent | In English | → Earth sciences |
| SLP | Solid Lipid Particle | In English | → Biochemistry, biophysics |
| SLS | Synchrotron Lichtquelle Schweiz | In German | → Electromagnetism |
| SM | Standard Model | In English | → Astronomy → Physics |
| SMAP | Short and Medium Term Priority Environmental Action Plan | In English | → Nature and society |
| SMB | Space Meteorology Branch | In English | → Meteorology, climatology → Spaceflight engineering, astronautics |
| SMBL | Systems Biology Markup Language | In English | → Programming languages → Data → Biological sciences |
| SMC | Standard Model of Cosmology | In English | → Cosmology |
| SmCES | Smithsonian Contributions to Earth Sciences | In English | → Serial publications, periodicals → Earth sciences |
| SMDD | Sommet Mondial sur le Développement Durable = CMDS | Cumbre Mundial sobre el Desarrollo Sostenible | In Spanish = WSSD | World Summit on Sustainable Development | In English = CMDS | Cúpula Mundial de Desenvolvimento Sustentável | In Portuguese |
In French | → International relations → Nature and society |
| SME | Solar Mesosphere Explorer | In English | → Astronomy → Earth sciences |
| SME | Système de Management Environnemental | In French | → Nature |
| SMEA | Système de Management Environnemental et d'Audit | In French | → Nature |
| SMG | Space Flight Meteorology Group | In English | → Meteorology, climatology → Spaceflight engineering, astronautics |
| SMHI | Sveriges meteorologiska och hydrologiska institut | In Swedish | → Meteorology, climatology |
| SMI | Stefan Meyer Instituts für subatomare Physik | In German | → Nuclear, atomic, and molecular physics |
| SMILES | Simplified Molecular Input Line Entry Specification | In English | → Data → Chemistry |
| SMM | Solar Maximum Mission | In English | → Astronomy |
| SMM | Society for Marine Mammalogy (www.marinemammalogy.org) | In English | → Organizations and associations → Mammals |
| SMOW | Standard Mean Ocean Water | In English | → Marine research, oceanography |
| SMP | Supercooled Molten Particle | In English | → Biochemistry, biophysics |
| SMS | Synchronous Meteorological Satellite | In English | → Meteorology, climatology → Spaceflight engineering, astronautics |
| SMSPS | Stephan Mueller Special Publication Series | In English | → Serial publications, periodicals → Earth sciences |
| SMVM | Schéma de Mise en Valeur de la Mer | In French | → Marine research, oceanography |
| SN | Space Network | In English | → Astronomy → Spaceflight engineering, astronautics |
| SNC | Société Nucléaire Canadienne (www.cns-snc.ca) | In French | → Organizations and associations → Nuclear, atomic, and molecular physics → Nuclear technology |
| SNG | Schweizerische Naturforschende Gesellschaft | In German | → Organizations and associations |
| SNGR | Stochastic Noise Generation and Radiation | In English | → Acoustics |
| SNL | SYBYL Line Notation | In English | → Data → Chemistry |
| SNV | Sciences de la Nature et de la Vie | In French | → Earth sciences → Biological sciences |
| SO/SI | Space Operations and Scientific Investigation | In English | → Astronomy → Spaceflight engineering, astronautics |
| SO2 | Dioxyde de soufre | In French | → Chemistry |
| SOCS | Suppressor Of Cytokine Signaling | In English | → Biochemistry, biophysics |
| SOGS | Science Operations Ground System | In English | |
| SOHO | Solar and Heliospheric Observatory | In English | → Observatories |
| SOLSTICE | Solar Stellar Irradiance Comparison Experiment | In English | → Astronomy |
| SoPh | Solar Physics | In English | → Serial publications, periodicals → Astronomy |
| SoSyR | Solar System Research | In English | → Serial publications, periodicals → Solar system |
| SOT | Solar Optical Telescope | In English | → Astronomy → Spaceflight engineering, astronautics |
| SOURDINE | Study of Optimisation procedURes for Decreasing the Impact of NoisE | In English | → Acoustics |
| SouSt | Southern Skies | In English | → Serial publications, periodicals → Astronomy |
| SP | Silver proteinate | In English | → Biochemistry, biophysics |
| SP | Solar Physics | In English | → Astronomy |
| SP2M | Service de Physique des Matériaux et Microstructures | In French | → Nuclear, atomic, and molecular physics |
| SPA | Société Protectrice des Animaux | In French | → Organizations and associations → Nature and society |
| SPART | Space Research And Technology | In English | → Astronomy → Spaceflight engineering, astronautics |
| SPARTAN | Shuttle Pointed Autonomous Research Tool for Astronomy | In English | → Astronomy → Spaceflight engineering, astronautics |
| SPD | Solar Physics Division | In English | → Astronomy |
| SPDG | Syndicat Professionnel de la Géomatique | In French | → Organizations and associations → Geodesy, cartography → Geography |
| SpecL | Spectroscopy Letters | In English | → Serial publications, periodicals → Chemistry |
| SpEd | Space Education | In English | → Serial publications, periodicals → Astronomy → Education |
| SPI | Società Paleontologica Italiana | In Italian | → Organizations and associations → Palaeontology |
| SPI | Sciences Physiques pour l'Ingénieur | In French | → Physics → Engineering, technology |
| SPICE | Survey Probe Infrared Celestial Experiment | In English | → Astronomy → Spaceflight engineering, astronautics |
| SPICE | Survey Program of Infrared Celestial Experiments | In English | → Astronomy → Spaceflight engineering, astronautics |
| SPINES | Science and Technology Policy Information Exchange System | In English | → Research policy → Public administration, government → Applied sciences, technology |
| SPIRAL | Secrétariat pour la Prévention des Pollutions Industrielles et Risques dans l'Agglomération | In French | → Nature |
| SPIRE | Spectral Infrared Rocket Experiment | In English | → Astronomy → Spaceflight engineering, astronautics |
| SPIRIT | Spatial Infrared Telescope | In English | → Astronomy → Spaceflight engineering, astronautics |
| SPL | Science Photo Library | In English | → Libraries → Photography |
| SPM | Seeker and Processor Math Models | In English | → Mathematics |
| SpMar | Space Markets | In English | → Serial publications, periodicals → Astronomy → Spaceflight engineering, astronautics |
| SPOT | Strengthen Photonics and Optical Technologies (for Europe) | In English | → Optics |
| SPOT | Système Probatoire pour l'Observation de la Terre | In French | → Meteorology, climatology → Spaceflight engineering, astronautics |
| SPOT | Système Probatoire d'Observation de la Terre | In French | → Earth sciences → Spaceflight engineering, astronautics |
| SPP | Solar Physics Payload | In English | → Astronomy → Spaceflight engineering, astronautics |
| SpPol | Space Policy | In English | → Serial publications, periodicals → Astronomy → Spaceflight engineering, astronautics |
| SPPPI | Secrétariat Permanent pour la Prévention des Pollutions Industrielles | In French | → Nature |
| SPR | Surface Plasmon Resonance | In English | → Biological sciences |
| SpRBu | Space Research Bulgaria | In English | → Serial publications, periodicals → Astronomy → Spaceflight engineering, astronautics |
| SPRL | Space Physics Research Laboratory (www.sprl.umich.edu) | In English | → Research institutes → Astronomy |
| SprRe | Sproul Observatory Reprints | In English | → Serial publications, periodicals → Astronomy |
| SPSS | Science Planning and Scheduling System | In English | |
| SPT | South Pole Telescope (http://spt.uchicago.edu) | In English | → Astronomy |
| Spvw | Spaceview | In English | → Serial publications, periodicals → Astronomy → Spaceflight engineering, astronautics |
| SpWd | Space World | In English | → Serial publications, periodicals → Astronomy |
| SpWea | Space Weather | In English | → Serial publications, periodicals → Astronomy → Meteorology, climatology |
| SRAG | Space Radiation Analysis Group | In English | → Astronomy → Spaceflight engineering, astronautics |
| SRBBM | Societatea Română de Biochimie şi Biologie Moleculară | In Romanian | → Organizations and associations → Biochemistry, biophysics |
| SRIF | Science Research Investment Fund | In English | |
| SRL | Space Radar Laboratory | In English | → Research institutes → Astronomy → Spaceflight engineering, astronautics |
| SRMO | Specula Regia Monachiensi Observationes astronomicae | In Latin | → Serial publications, periodicals → Astronomy |
| SRS | Stellar Radiation Sensor | In English | → Astronomy |
| SSA | Single-Strand Annealing | In English | → Genetics |
| SSAD | Servicio de Secuenciación Automática de DNA | In Spanish | → Genetics → Biotechnology |
| SSBUV | Shuttle Solar Backscatter Ultraviolet (experiment) | In English | → Astronomy → Spaceflight engineering, astronautics |
| SSCom | Solid State Communications | In English | → Serial publications, periodicals → Physics |
| SSCP | Springer Verlag Springer Series on Chemical Physics | In English | → Serial publications, periodicals → Physics → Chemistry |
| SSCP | Single-Strand Conformation Polymorphism | In English | → Genetics → Biochemistry, biophysics |
| SScT | Speculations in Science and Technology | In English | → Serial publications, periodicals → Engineering, technology |
| SSDF | Space Science Development Facility | In English | → Astronomy → Spaceflight engineering, astronautics |
| SSEle | Solid State Electronics | In English | → Serial publications, periodicals → Physics |
| SSENR | Schéma de Service des Espaces Naturels et Ruraux | In French | → Nature |
| SSEp | Springer Verlag Springer Series on Electrophysics | In English | → Serial publications, periodicals → Electricity, magnetism, electromagnetism |
| SSGSR | Springer Verlag Springer Series on Group Geophysics Space Research | In English | → Serial publications, periodicals → Geophysics → Astronomy |
| SSHMP | Sources and Studies in the History of Mathematics and Physical Sciences | In English | → Serial publications, periodicals → Mathematics → Physics → History |
| SSI | Statens Serum Institut | In Danish | → Research institutes → Biological sciences → Immunology and allergy |
| SSI | Space Science Instrumentation | In English | → Serial publications, periodicals → Astronomy |
| SSIE | Smithsonian Science Information Exchange | In English | |
| SSIon | Solid State Ionics | In English | → Serial publications, periodicals → Physics |
| SSMS | Singaporean Society for Mass Spectrometry | In English | → Organizations and associations → Chromatography, mass spectrography |
| SSNMR | Solid State Nuclear Magnetic Resonance | In English | → Serial publications, periodicals → Physics |
| SSOS | Springer Verlag Springer Series on Optical Sciences | In English | → Serial publications, periodicals → Optics |
| SSP | Subsolar Point | In English | → Astronomy → Spaceflight engineering, astronautics |
| SSPAR | Solid State Physics Advances in Research and Applications | In English | → Serial publications, periodicals → Physics |
| SSPAS | Solid State Physics Advances in Research and Applications Supplement | In English | → Serial publications, periodicals → Physics |
| SSPRv | Space and Solar Power Review | In English | → Serial publications, periodicals → Astronomy → Energy economics |
| SSRp | Stochastics and Stochastics Reports | In English | → Serial publications, periodicals → Mathematics |
| SSRv | Space Science Reviews | In English | → Serial publications, periodicals → Astronomy |
| SSS | Spinning Sun Sensor | In English | → Astronomy → Spaceflight engineering, astronautics |
| SSS | Social Studies of Science | In English | → Serial publications, periodicals → Social sciences |
| SSSAJ | Soil Science Society of America Journal | In English | → Serial publications, periodicals → Earth sciences → Agricultural sciences |
| SSSSS | Springer Verlag Springer Series on Solid State Sciences | In English | → Serial publications, periodicals → Physics |
| SSSyn | Springer Verlag Springer Series on Synergetics | In English | → Serial publications, periodicals → Physics |
| SST | Sea Surface Temperature | In English | → Marine research, oceanography → Meteorology, climatology |
| SST | Service pour la Science et la Technologie | In French | → Engineering, technology |
| SST | Space Surveillance and Tracking | In English | → Astronomy → Spaceflight engineering, astronautics |
|