| SFCS | Survival Flight Control System | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| SFDRMG | Société Française de Documentation et de Recherche en Médecine Générale | In French | → Organizations and associations → Medicine |
| SFEN | Société Française pour l’Énergie Nucléaire | In French | → Organizations and associations → Energy economics → Nuclear technology |
| SFEN | Société Française d'Énergie Nucléaire | In French | → Organizations and associations → Energy economics → Nuclear technology |
| SFHTA | Société Française d'Hypertension Artérielle | In French | → Organizations and associations → Blood and circulatory system → Cardiology |
| SFIC | Syndicat Français de l'Industrie Cimentière | In French | → Organizations and associations → Civil engineering → Building |
| SFM | Sustainable Forest Management | In English | → Forestry → Timber and woodworking industry |
| SFMC | Société des Forces Motrices du Châtelot | In French | → Energy economics |
| SFMS | Societé Francophone de Médecine Sexuelle | In French | → Organizations and associations → Sexual problems → Urology |
| SFMS | Société Française de Médecine du Sport | In French | → Organizations and associations → Medicine → Sport, physical exercises |
| SFNEP | Société Française de Nutrition Entérale et Parentérale | In French | → Nutrition |
| SFO | Space Flight Operations | In English | → Spaceflight engineering, astronautics |
| SFOE | Swiss Federal Office of Energy | In English | → Energy economics |
| SFOF | Space Flight Operations Facility | In English | → Spaceflight engineering, astronautics |
| SFOG | Société Française d'Oncologie Gynécologique | In French | → Organizations and associations → Oncology → Gynaecology |
| SFOM | Shuttle Flight Operations Manual | In English | → Spaceflight engineering, astronautics |
| SFOM | Space Flight Operations Memorandum | In English | → Spaceflight engineering, astronautics |
| SFOP | Space Flight Operations Plan | In English | → Spaceflight engineering, astronautics |
| SFOP | Strumento Finanziario di Orientamento della Pesca = IFOP | Instrument Financier d'Orientation de la Pêche | In French = FIAF | Finanzinstrument für die Ausrichtung der Fischerei | In German = FIFG | Financial Instrument for Fisheries Guidance | In English = FFU | Fonden för Fiskets Utveckling | In Swedish |
In Italian | → Finance → European Union → Fishing, hunting |
| SFOP | Société Française d'Oncologie Pédiatrique | In French | → Organizations and associations → Oncology → Pediatry |
| SFP | Summary Flight Plan | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| SFPC | Société Française de Pharmacie Clinique (www.adiph.org/sfpc/) | In French | → Organizations and associations → Pharmacology, toxicology |
| SFPO | Société Française de Pharmacie Oncologique | In French | → Organizations and associations → Pharmacology, toxicology → Oncology |
| SFR | Société Française de Rhumatologie (www.rhumatologie.asso.fr) | In French | → Organizations and associations → Medicine |
| SFR | Société Française de Radiotéléphone (www.sfr.fr) | In French | → Telecommunications |
| SFR | Société Française de Radiologie (www.sfr-radiologie.asso.fr) | In French | → Organizations and associations → Medicine |
| SFRO | Société Française de Radiothérapie Oncologique | In French | → Organizations and associations → Oncology |
| SFS | Shuttle Flight Status | In English | → Spaceflight engineering, astronautics |
| SFSS | Satellite Field Service Station | In English | → Spaceflight engineering, astronautics |
| SFT | Simulated Flight Test | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| SFT | Structural Fatigue Test | In English | → Mechanical engineering |
| SFTA | Structural Fatigue Test Article | In English | → Mechanical engineering |
| SFTP | Shielded and Foiled Twisted Pair | In English | → Electrical engineering |
| SFU | Société des Fonderies d’Ussel | In French | → Metallurgy |
| SFU | Sigmund Freud-Universität (www.sfu.ac.at) | In German | → Higher education, universities → Medicine |
| SG | Surgeon General | In English | → Surgery, orthopaedics, ophthalmology |
| SGAM | Schweizerische Gesellschaft für Allgemeinmedizin | In German | → Organizations and associations → Medicine |
| SGC | Stabilized Ground Cloud | In English | → Meteorology, climatology → Spaceflight engineering, astronautics |
| SGHWR | Steam Generating Heavy Water Reactor | In English | → Nuclear technology |
| SGITS | Spacecraft/GOSS Interface Test System | In English | → Spaceflight engineering, astronautics |
| SGLS | Space-Ground Link Station | In English | → Spaceflight engineering, astronautics → Telecommunications |
| SGLS | Space-Ground Link System | In English | → Spaceflight engineering, astronautics → Telecommunications |
| SGOS | Shuttle Ground Operations Simulator | In English | → Spaceflight engineering, astronautics |
| SGP-RE | Salinity Gradient Power by Reverse Electrodialysis | In English | → Environmental technology, water supply, waste management |
| SGR | Saint-Gobain Recherche | In French | → 620 |
| SGSM | Schweizerische Gesellschaft für Sportmedizin = SSMS | Société Suisse de Médecine du Sport | In French |
In German | → Organizations and associations → Medicine → Sport, physical exercises |
| SGSN | Serving GPRS Support Node | In English | → Telecommunications |
| SGX | Structural GenomiX | In English | → Biotechnology |
| SGZP | Schweizerische Gesellschaft für zerstörungsfreie Prüfung | In German | → Engineering, technology |
| SHARE | Survey of Health, Ageing and Retirement in Europe | In English | → Social welfare → Medicine |
| SHARP | Society for the History of Authorship, Reading, and Publishing | In English | → Organizations and associations → Artistic property → Graphic industries, printing, publishing → History |
| SHEM | Société Hydroélectrique du Midi | In French | → Electrical engineering |
| SHEMA | Société Hydraulique d'Études et de Missions d'Assistance | In French | → Energy economics |
| SHIP | Systems Health Information Portal | In English | → Medicine |
| SHIVA | Simulated Highways for Intelligent Vehicle Algorithms | In English | → Computer simulation → Transport and postal services |
| SHM | Social History of Medicine | In English | → Social sciences → Medicine → History |
| SHOT | Society for the History of Technology | In English | → Organizations and associations → Engineering, technology → History |
| SHP | Shaft Horsepower | In English | → Mechanical engineering |
| SHT | Schädel-Hirn-Trauma | In German | → Traumatology |
| SHU | Syndrome Hémolytique et Urémique = HUS | Hemolytic Uremic Syndrome | In English = SUH | Síndrome Urémico Hemolítico | In Spanish = HUS | Hämolytisch-urämisches Syndrom | In German = HUS | Hemolytisk uremisk syndrom | In Nynorsk = HUS | Hemolytisk-uremisk syndrom | In Norwegian = ХУС | Хемолитички уремијски синдром | In Serbian = HÜS | Hemolitik üremik sendrom | In Turkish |
In French | → Blood and circulatory system → Pathology |
| SHUa | Syndrome Hémolytique Urémique atypique | In French | → Pathology |
| SI | Secondary Infertility | In English | → Reproductive biology |
| SI | Shuttle Integration | In English | → Spaceflight engineering, astronautics |
| SI | Soins Intensifs | In French | → Traumatology |
| SI/FS | System Integration and Flight Software | In English | → Software → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| SI:X | Extrinsic Silicon | In English | → Electronics |
| SI:XX | Arsenic-Doped Silicon Detector | In English | → Electronics |
| SI:YY | Gallium-Doped Silicon Detector | In English | → Electronics |
| SIA | Salon International de l'Agriculture | In French | → Agricultural sciences |
| SIA | Société des Ingénieurs de l'Automobile | In French | → Organizations and associations → Automobile manufacturing |
| SIA | Société suisse des Ingénieurs et des Architectes = SIA | Schweizerischer Ingenieur- und Architekten-Verein | In German |
In French | → Organizations and associations → Engineering, technology → Architecture |
| SIA | Schweizerischer Ingenieur- und Architekten-Verein = (look above) |
In German | → Organizations and associations → Engineering, technology → Architecture |
| SIA | Società Italiana di Andrologia | In Italian | → Organizations and associations → Sexual problems → Urology |
| SIARV | Syndicat Intercommunal pour l'Assainissement de la Région de Villeneuve-Saint-Georges | In French | → Environmental technology, water supply, waste management |
| SICAE | Syndicat d’Intérêt Collectif Agricole Électricité | In French | → Organizations and associations → Agricultural sciences → Electrical engineering |
| SICBM | Small Intercontinental Ballistic Missile | In English | → Military engineering |
| SICOGIF | Syndicat national des Industries de la COmmunication Graphique et de l'Imprimerie Françaises | In French | → Organizations and associations → Graphic industries, printing, publishing → Graphic arts |
| SICTOM | Syndicat Intercommunal de Collecte et Traitement des Ordures Ménagères | In French | → Nature → Environmental technology, water supply, waste management |
| SID | Shuttle Integration Device | In English | → Spaceflight engineering, astronautics |
| SIDA | Síndrome d'Immunodeficiència Adquirida = AIDS | Acquired Immune Deficiency Syndrome | In English = SIDA | Syndrome d'Immuno-Déficience Acquise | In French = VIGS | Verworwe Immuniteitsgebreksindroom | In Afrikaans = SIDA | Síndrome de Inmuno-Deficiencia Adquirida | In Occitan = SIDA | Sindromo di Imuno-Defekteso Aquirita | In Ido = AIDS | Akirita Imuno-Deficita Simptomaro | In Esperanto = SIDA | Sindrome d'inmunodefizienzia aquirita | In Aragonese = СПИН | Синдром на придобитата имунна недостатъчност | In Bulgarian = QİÇS | Qazanılmış İmmun Çatışmazlığı Sindromu | In Azerbaijani = HIES | Hartutako Immuno Eskasiaren Sindromea | In Basque = SIDA | Síndrome de Inmunodeficiencia Adquirida | In Spanish = SEIF | Siondróm Easpa Imdhíonachta Faighte | In Irish = AIDS | Annlochd Inneamh Dìon-Slàinte | GD = ՁԻԱՀ | Ձեռքբերովի Իմունային Անբավարվածության Համախտանիշ | In Armenian = SCDI | Syndromis Comparatis Defectu Immunitatis | In Latin = 에이즈 | 후천성 면역 결핍 증후군 | In Korean = შიდსი | შეძენილი იმუნური დეფიციტის სინდრომი | In Georgian = СИДА | Синдромот на стекнат имунолошки дефицит | In Macedonian = СИДА | синдром стеченог имунолошког дефицита | In Serbian = AIDS | Akvirírani imúnski deficítni sindróm | In Slovenian = СПИД | Синдром приобретённого иммунного дефицита | In Russian = SIDA | Sindromul Imunodeficienţei Autodobândite | In Romanian = UHCW | Unquy hark'aypa chaskisqa waqlliynin | In Quechua = SIDA | Síndrome da imunodeficiência adquirida | In Portuguese = AIDS | Hội chứng Suy giảm Miễn dịch Mắc phải | In Vietnamese = СНІД | Cиндром набутого імунодефіциту | In Ukrainian = AIDS | Alınğan İmmun Defisit Síndromı | In Tatar = UKIMWI | Upungufu wa Kinga Mwilini | In Swahili |
In Catalan | → Immunology and allergy → Infectious diseases |
| SIDA | Sindromul Imunodeficienţei Autodobândite = AIDS, VIGS, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Romanian | → Immunology and allergy → Infectious diseases |
| SIDA | Síndrome de Inmunodeficiencia Adquirida = AIDS, VIGS, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Spanish | → Immunology and allergy → Infectious diseases |
| SIDA | Sindrome d'inmunodefizienzia aquirita = AIDS, VIGS, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Aragonese | → Immunology and allergy → Infectious diseases |
| SIDA | Síndrome da imunodeficiência adquirida = AIDS, VIGS, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Portuguese | → Immunology and allergy → Infectious diseases |
| SIDA | Syndrome d'Immuno-Déficience Acquise = AIDS, VIGS, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In French | → Immunology and allergy → Infectious diseases |
| SIDA | Sindromo di Imuno-Defekteso Aquirita = AIDS, VIGS, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Ido | → Immunology and allergy → Infectious diseases |
| SIDA | Síndrome de Inmuno-Deficiencia Adquirida = AIDS, VIGS, СПИН, QİÇS, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Occitan | → Immunology and allergy → Infectious diseases |
| SIDS | Sudden Infant Death Syndrome | In English | → Pediatry |
| SIE | Système d'Information sur l'Eau | In French | → Knowledge management → Hydrology → 627 → Environmental technology, water supply, waste management |
| SIE | Society of Industrial Engineers | In English | → Organizations and associations → Engineering, technology |
| SIE | Shuttle Interface Equipment | In English | → Human-computer interaction → Spaceflight engineering, astronautics |
| SIE | System Integration Engineer | In English | → Engineering, technology |
| SIER | Service Interdépartemental d'Exploitation Routière | In French | → Public administration, government → Transport and postal services |
| SIES | Supervision, Inspection, Engineering, and Services | In English | → Management → Engineering, technology |
| SIFAO | Salon Inversé de la Filière Automobile de l'Ouest | In French | → Automobile manufacturing |
| SIFC | Società Italiana per lo Studio della Fibrosi Cistica | In Italian | → Organizations and associations → Pathology |
| SIFF | Syndicat des Industries Françaises du Fibres-ciment (www.fibres-ciment.fr) | In French | → Organizations and associations → Civil engineering → Building |
| SIJLAB | Sino-Italian Joint Laboratory of Archimede's Bridge | In German | → Research institutes → Civil engineering |
| SILEC | Société Industrielle de Liaison Électrique | In French | → Electrical engineering |
| SILTS | Shuttle Infrared Lee-Side Temperature Sensing | In English | → Spaceflight engineering, astronautics |
| SIM | Subscriber Identity Module | In English | → Telecommunications |
| SIMAP | Service des Industries Manufacturières et des Activité Postales | In French | → Transport and postal services |
| SIMAS | Shuttle Information Management Accountability System | In English | → Spaceflight engineering, astronautics |
| SIMS | Shuttle Imaging Microwave System | In English | → Spaceflight engineering, astronautics |
| SIMS | Shuttle Inventory Management System | In English | → Spaceflight engineering, astronautics |
| SINDIPEÇAS | Sindicato Nacional da Indústria de Componentes para Veículos Automotores | In Portuguese | → Organizations and associations → Vehicle engineering |
| SINDUSCON | Sindicato da Industria da Construção Civil | In Portuguese | → Organizations and associations → Civil engineering |
| SINETICS | SImulation NEutronique, Technique de l’Information et Calcul Scientifique | In French | → Nuclear technology |
| SINTEF | Stiftelsen for industriell og teknisk forskning | In Norwegian | → Research policy → Engineering, technology |
| SIO | Staged In Orbit | In English | → Spaceflight engineering, astronautics |
| SIOP | Société Internationale d'Oncologie Pédiatrique | In French | → Oncology → Pediatry |
| SIP | Strain Isolation Pad | In English | → Spaceflight engineering, astronautics |
| SIP | Società Idroelettrica Piemontese | In Italian | → Energy economics → Electrical engineering |
| SIP | Session Initiation Protocol | In English | → Networks, communication → Telecommunications |
| SIPPEREC | Syndicat Intercommunal de la Périphérie de Paris pour l'Électricité et les RÉseaux de Communication | In French | → Organizations and associations → Electrical engineering → Telecommunications |
| SIR | Shuttle Imaging Radar | In English | → Spaceflight engineering, astronautics |
| SIRA | Système d'Informations pour la Recherche en Accidentologie | In French | → Data → Transport and postal services |
| SIRES | Sindicato da Indústria de Resinas Sintéticas | In Portuguese | → Organizations and associations → Chemical technology |
| SIRIUS | Système d'Information pour un Réseau Intelligible aux Usagers | In French | → Transport and postal services |
| SIROCCO | SIgnal, RObotique, Communication, Contrôle et Optimisation | In French | → Electronics → Telecommunications |
| SIRT | Selektive Interne Radiotherapie | In German | → Medicine |
| SIRTF | Shuttle Infrared Telescope Facility | In English | → Astronomy → Spaceflight engineering, astronautics |
| SIS | Shuttle Integration Schedule | In English | → Spaceflight engineering, astronautics |
| SIS | Shuttle Information Service | In English | → Knowledge management → Spaceflight engineering, astronautics |
| SIS | Systems Integration Schedule | In English | → Engineering, technology |
| SIS | Shuttle Information System | In English | → Knowledge management → Spaceflight engineering, astronautics |
| SIS | Shuttle Interface Simulator | In English | → Human-computer interaction → Spaceflight engineering, astronautics |
| SISEX | Shuttle Imaging Spectrometer Experiment | In English | → Astronomy → Analytical chemistry → Spaceflight engineering, astronautics |
| SISTM | Simulation of Strategies for Traffic on Motorways | In English | → Computer simulation → Transport and postal services |
| SIT | Système d'Information Trafic | In French | → Transport and postal services |
| SIT | Shuttle Interface Test | In English | → Spaceflight engineering, astronautics |
| SIT | Stevens Institute of Technology | In English | → Engineering, technology |
| SIT | Systems Integration Test | In English | → Engineering, technology |
| SIT | Shuttle Integrated Test | In English | → Spaceflight engineering, astronautics |
| SITA | Societatea Internaţională de Telecomunicaţii Aeronautice | In Romanian | → Telecommunications → Transport and postal services |
| SITE | Spacecraft Instrumentation Test Equipment | In English | → Spaceflight engineering, astronautics |
| SITEF | Salon International pour les Technologies et les Énergies du Futur | In French | → Engineering, technology → 6208 |
| SITI | Système Intelligent pour le Transport Intermodal urbain de voyageurs | In French | → Transport and postal services |
| SITP | System Integration Test Plan | In English | → Engineering, technology |
| SITS | Syndicat général des Industries de matériels et procédés pour les Traitements de Surfaces | In French | → Organizations and associations → 620 |
| SITT | Systems Integration of Triad Technology | In English | → Engineering, technology |
| SIU | Société Internationale d'Urologie | In French | → Organizations and associations → Urology |
| SIV | Simian Immunodeficiency Virus | In English | → Virology → Immunology and allergy → Infectious diseases |
| SIVE | Spacelab Interface Verification Equipment | In English | → Spaceflight engineering, astronautics |
| SJC | Spacecraft Jettison Controller | In English | → Spaceflight engineering, astronautics |
| SJCLI | The Scandinavian Journal of Clinical and Laboratory Investigation | In English | → Serial publications, periodicals → Medicine |
| SJMet | Scandinavian Journal of Metallurgy | In English | → Serial publications, periodicals → Metallurgy |
| SJRPP | St. Johns River Power Park | In English | → Electrical engineering |
| SKL | Suomen Konepäällystöliitto | In Finnish | → Organizations and associations → Engineering, technology |
| SL | Spacelab | In English | → Spaceflight engineering, astronautics |
| SL | Space Launch | In English | → Spaceflight engineering, astronautics |
| SL | Space Laboratory | In English | → Research institutes → Spaceflight engineering, astronautics |
| SLAENG | Space-Based Laser Engagement | In English | → Spaceflight engineering, astronautics |
| SLAMAP | Space Laser Mission Analysis Program | In English | → Spaceflight engineering, astronautics |
| 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 |
| SLBM | Submarine-Launched Ballistic Missile | In English | → Military engineering |
| SLC | Space Launch Complex | In English | → Spaceflight engineering, astronautics |
| SLC | Small cell Lung Carcinoma | In English | → Chest diseases → Oncology |
| SLCA | Spacelab Contract Administration | In English | → Spaceflight engineering, astronautics |
| SLCM | Spacelab Configuration Management | In English | → Spaceflight engineering, astronautics |
| SLCM | Sea-Launched Cruise Missile | In English | → Military engineering |
| SLCSAT | Submarine Laser Communications Satellite | In English | → Spaceflight engineering, astronautics |
| SLE | Systemic Lupus Erythematosus = LES | Lupus Érythémateux Systémique | In French |
In English | → Immunology and allergy → Pathology |
| SLED | Space Laser Experiment Definition | In English | → Spaceflight engineering, astronautics |
| SLEE | Société Lorraine d'Entreprises Électriques | In French | → Electrical engineering |
| SLEMU | Spacelab Engineering Model Unit | In English | → Spaceflight engineering, astronautics |
| SLF | Shuttle Landing Facility | In English | → Spaceflight engineering, astronautics |
| SLF | Syndicat de la Librairie Française | In French | → Organizations and associations → Graphic industries, printing, publishing |
| SLFC | Selectable Low-Frequency Clock | In English | → Telecommunications |
| SLFCS | Survivable Low-Frequency Communications System | In English | → Telecommunications |
| SLKT | Survivability, Lethality, and Key Technologies | In English | → Medicine → Engineering, technology |
| SLL | Suomen Lääkäriliitto = FMA | Finnish Medical Association | In English = FLF | Finlands Läkarförbundet | In Swedish |
In Finnish | → Organizations and associations → Medicine |
| SLM | Space Laboratory Module | In English | → Research institutes → Spaceflight engineering, astronautics |
| SLODB | Spacelab Operational Data Book | In English | → Spaceflight engineering, astronautics |
| SLPB | Spacelab Program Board | In English | → Spaceflight engineering, astronautics |
| SLS | Spacelab Simulator | In English | → Spaceflight engineering, astronautics |
| SLS | Secondary Landing Site | In English | → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| SLSA | Shuttle Logistics Support Aircraft | In English | → Maintenance and logistics → Aeronautics, aircraft → Spaceflight engineering, astronautics |
| SLSDC | Saint Lawrence Seaway Development Corporation (www.seaway.dot.gov) | In English | → Transport and postal services |
| SLSMS | Spacelab Support Module Simulator | In English | → Spaceflight engineering, astronautics |
| SLSS | Spacelab Subsystem | In English | → Spaceflight engineering, astronautics |
| SLSSS | Spacelab Subsystem Segment | In English | → 62878 |
| SLUK | Spacelab Utility Kit | In English | → Spaceflight engineering, astronautics |
| SLV | Space Launch Vehicle | In English | → Spaceflight engineering, astronautics |
| SM | Systems Management | In English | → Management → Engineering, technology |
| SM | Shuttle Management | In English | → Spaceflight engineering, astronautics |
| SM | System Monitoring | In English | → Engineering, technology |
| SM | Strategic 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 |
| SMAB | Solid Motor Assembly Building | In English | → Vehicle engineering |
| SMArc | Solid Mechanics Archives | In English | → Serial publications, periodicals → Mechanical engineering |
| SMARTS | Simulation, Monitoring, Analysis, Reduction, and Test | In English | → Engineering, technology |
| SMaS | Smart Material Structures | In English | → Serial publications, periodicals → 620 |
| SMATH | Satellite Materials And Target Hardening | In English | → Spaceflight engineering, astronautics |
| SMB | Space Meteorology Branch | In English | → Meteorology, climatology → Spaceflight engineering, astronautics |
| SMCC | Shuttle Mission Control Center | In English | → Spaceflight engineering, astronautics |
| sMCJ | Maladie de Creutzfeldt-Jakob sporadique | In French | → Neurology |