| KCA | Kérato-Conjonctivite Atopique | In French | → Ophtalmology |
| KCV | Kérato-Conjonctivite Vernale | In French | → Ophtalmology |
| LA | Leucémie Aiguë | In French | → Blood and circulatory system |
| LAL | Leucémie Aiguë Lymphoïde | In French | → Blood and circulatory system |
| LAM | Leucémie Aiguë Myéloïde | In French | → Blood and circulatory system |
| LAM | Leucémie Aiguë à Mégacaryocytes | In French | → Blood and circulatory system |
| LAUF | Landssamtök áhugafólks um flogaveiki (www.lauf.is) | In Icelandic | → Organizations and associations → Neurology |
| LBE | Liga Brasileira de Epilepsia | In Portuguese | → Organizations and associations → Neurology |
| LBICR | Ludwig Boltzmann Institut for Cancer Research | In English | → Oncology |
| LCA | Leber's Congenital Amaurosis | In English | |
| LCE | Liga Colombiana contra la Epilepsia | In Spanish | → Organizations and associations → Neurology |
| LCS | Libyan Cardiac Society | In English | → Organizations and associations → Cardiology |
| LDF | Ligue des Diabétiques de France (www.diabetenet.com) | In French | → Organizations and associations → Physiology |
| LEAD | Lupus Érythémateux Aigu Disséminé | In French | → Immunology and allergy |
| LED | Lupus Érythémateux Disséminé | In French | |
| LEE | Locus of Enterocyte Effacement | In English | → Blood and circulatory system |
| LES | Lupus Érythémateux Systémique = SLE | Systemic Lupus Erythematosus | In English |
In French | → Immunology and allergy |
| LETS | Leiden Thrombophilia Study | In English | → Pharmacology, toxicology |
| LFCE | Ligue Française Contre l'Épilepsie (www.lfce-epilepsies.fr) | In French | → Organizations and associations → Neurology |
| LICE | Lega Italiana Contro L'Epilessia (www.lice.it) | In Italian | → Organizations and associations → Neurology |
| LICHE | Liga Chilena contra la Epilepsia (www.ligaepilepsia.cl) | In Spanish | → Organizations and associations → Neurology |
| LMC | Leucémie Myéloïde Chronique | In French | → Blood and circulatory system |
| LMPV | Leucomalacie périventriculaire = PVL | Periventrikuläre Leukomalazie | In German = PVL | Periventricular Leukomalacia | In English = PVL | Periventriculaire Leukomalacie | In Dutch |
In French | → Obstetrics → Neurology |
| LNCC | Ligue Nationale Contre le Cancer | In French | → Organizations and associations → Oncology |
| LRPAT | Laboratoire de Recherche en Pathologies Radio-induites | In French | → Research institutes |
| LUSSI | Laboratoire UltraSons, Signaux et Instrumentation (www.lussi.univ-tours.fr) | In French | → Research institutes → Diagnostics |
| LVH | Left Ventricular Hypertrophy | In English | → Cardiology |
| LVRS | Lung Volume Reduction Surgery | In English | → Chest diseases |
| MAS | Morbus Alzheimer Syndrom | In German | → Neurology |
| MAT | Microangiopathie thrombotique | In French | → Blood and circulatory system |
| MAV | Malformation artérioveineuse | In French | |
| MCBO | Molecular Cell Biology and Oncology Graduate Program | In English | → Education → Cytology → Oncology |
| MCI | Mild Cognitive Impairment | In English | → Neurology |
| MCJ | Maladie de Creutzfeldt-Jakob | In French | → Neurology |
| MEG | Magnetoencephalography | In English | → Neurology |
| MIDD | Maternally Inherited Diabetes and Deafness | In English | |
| MIV | Menslike Immuniteitsgebreksvirus = VIH | Virus de l'Immunodéficience Humaine | In French = HIV | Human Immunodeficiency Virus | In English = VIH | Virus d'Inmunodeficencia Humana | In Asturian = VIH | Vírus da imunodeficiência humana | In Portuguese = VIDH | Virus Immunitarii Defectus Humanae | In Latin = ŽIV | Žmogaus Imunodeficito Virusas | In Lithuanian = ХИВ | Хумане имунодефицијенције | In Serbian = HIV | Humani Imunodeficientni Virus | In Slovenian = ВИЧ | Вирус иммунодефицита человека | In Russian = GIB | Giza Immunoeskasiaren Birusa | In Basque |
In Afrikaans | → Virology → Immunology and allergy → Infectious diseases |
| MMM | Myélofibrose avec Métaplasie Myéloïde | In French | → Blood and circulatory system |
| MMTV | Mouse Mammary Tumor Virus | In English | → Virology → Oncology |
| MODY | Maturity-Onset Diabetes of the Young | In English | |
| MPGN | Membranoproliferative Glomerulonephritis | In English | |
| MPOC | Maladie Pulmonaire Obstructive Chronique | In French | |
| MPPS | Mammary Gland Physiology and Pathology Society | In English | → Organizations and associations → Physiology → Mammals |
| MRD | Minimal Residual Disease | In English | |
| MS | Multiple Sclerosis | In English | → Neurology |
| MUSE | Medicated Urethral System for Erection | In English | → 3926 → Urology |
| MVO | Maladie Veino-Occlusive | In French | |
| NASH | Nicht-alkoholische Steatohepatitis | In German | |
| NCI | National Cancer Institute | In English | → Oncology |
| NCM | Neural Control of Movement Society (http://ncm-society.org) | In English | → Organizations and associations → Neurology |
| NEOBRAIN | Neonatal Estimation Of Brain Damage Risk And Identification of Neuroprotectants | In English | → Neurology → Obstetrics |
| NETT | National Emphysema Treatment Trial | In English | → Chest diseases |
| NGF | Nerve Growth Factor | In English | → Hormones → Neurology" |
| NHF | National Hemophilia Foundation | In English | → Foundations → Blood and circulatory system |
| NHLBI | National Heart, Lung, and Blood Institute (www.nhlbi.nih.gov) | In English | → Research institutes → Blood and circulatory system → Cardiology → Medicine |
| NIDDK | National Institute of Diabetes and Digestive and Kidney Diseases | In English | → Research institutes → Physiology |
| NIMH | National Institute of Mental Health | In English | → Neurology |
| NKI-AVL | Nederlands Kanker Instituut - Antoni van Leeuwenhoek Ziekenhuis | In Dutch | → Oncology |
| NMMBC | Neuropathie Motrice Multifocale à Bloc de Conduction | In French | → Neurology |
| NN | Neural Networks | In English | → Serial publications, periodicals → Computer-based techniques → Neurology |
| NPH | Neutral Protamine Hagedorn | In English | → Cardiology |
| NSLC | Non-Small cell Lung Carcinoma | In English | → Chest diseases → Oncology |
| nvMCJ | Nouveau variant de la Maladie de Creutzfeldt-Jakob | In French | → Neurology |
| OBVP | Österreichischer Bundesverband für Psychotherapie (www.psychotherapie.at) | In German | → Organizations and associations → Psychology → Neurology |
| OCD | Obsessive Compulsive Disorder | In English | → Psychology → Neurology |
| ÖDG | Österreichische Diabetes-Gesellschaft | In German | → Organizations and associations |
| OECI | Organisation of European Cancer Institutes | In English | → Organizations and associations → Oncology |
| OECI | Organization of European Cancer Institutes (www.oeci-eeig.org) | In English | → Organizations and associations → Research institutes → Oncology |
| ÖGDV | Österreichische Gesellschaft für Dermatologie und Venerologie | In German | → Organizations and associations → Dermatology |
| ÖGGH | Österreichische Gesellschaft für Gastroenterologie und Hepatologie | In German | → Organizations and associations |
| ÖGHO | Österreichische Gesellschaft für Hämatologie und Onkologie | In German | → Organizations and associations → Oncology |
| ÖGLUT | Österreichische Gesellschaft für Lungenerkrankungen und Tuberkulose | In German | → Organizations and associations → Chest diseases → Infectious diseases |
| ÖGN | Österreichische Gesellschaft für Neurologie | In German | → Organizations and associations → Neurology |
| ÖGP | Österreichische Gesellschaft für Pneumologie | In German | → Organizations and associations → Chest diseases |
| ÖGPB | Österreichische Gesellschaft für Neuropsychopharmakologie und Biologische Psychiatrie | In German | → Organizations and associations → Pharmacology, toxicology → Neurology → Psychiatry |
| OIF | Osteogenesis Imperfecta Foundation | In English | → Foundations |
| ÖKG | Österreichische Kardiologische Gesellschaft | In German | → Organizations and associations → Cardiology |
| ÖMCCV | Österreichische Morbus Crohn-Colitis ulcerosa Vereinigung | In German | |
| OMD | Oedème Maculaire Diabétique | In French | → Ophtalmology |
| ORD | Office of Rare Diseases (http://rarediseases.info.nih.gov) | In English | → 345 |
| ÖRPE | Österreichische Referenzzentrum zur Erfassung und Dokumentation von menschlichen Prionenerkrankungen | In German | |
| ÖSG | Österreichische Schmerzgesellschaft | In German | → Organizations and associations |
| OVCAD | OVarian CAncer Diagnosis | In English | → Diagnostics → Oncology → Gynaecology |
| P-HUS | Pneumococcal-associated Hemolytic Uremic Syndrome | In English | → Blood and circulatory system |
| PAAR | Professional Association of Andrologists of Russia | In English | → Associations → Sexual problems → Urology |
| PAE | Pulmonale arterielle Hypertonie | In German | → Blood and circulatory system → Chest diseases |
| PAH | Pulmonal arterielle Hypertonie | In German | |
| PAP | Papanicolaou | In German | → Oncology |
| PAS | Personen uit het Autisme Spectrum | In Dutch | → Neurology |
| PBR | Ponction-Biopsie Rénale | In French | → Diagnostics |
| PD | Parkinson's Disease | In English | → Neurology |
| PFS | Progression-Free Survival | In English | |
| PGD | Preimplantation Genetic Diagnosis | In English | → Genetics → Diagnostics → Reproductive biology |
| PID | Präimplantationsdiagnostik | In German | → Diagnostics → Reproductive biology |
| PLD | Partial Lipodistrophy | In English | → Physiology |
| PLM | Physiopathologie des Lipides et Membranes | In French | → Physiology |
| PML | Promyelocytic Leukaemia | In English | |
| PML | Progressive Multifokale Leukoenzephalopathie | In German | |
| PND | Pränatale Diagnostik | In German | → Diagnostics → Reproductive biology |
| PNH | Paroxysmal Nocturnal Hemoglobinuria | In English | → Physiology |
| PNH | Paroxysmal Nocturnal Haemoglobinuria | In English | |
| PNRC | Programme National de Recherche sur les Maladies Cardiovasculaires | In French | → Cardiology |
| PNRD | Programme National de Recherche sur le Diabète | In French | → Physiology |
| PrPc | Protéine prion cellulaire | In French | → Infectious diseases |
| PSSM | Polish Society for Sexual Medicine | In English | → Organizations and associations → Sexual problems → Urology → Applied sciences, technology |
| PTCA | Percutaneous Coronary Transluminal Angioplasty | In English | → Cardiology |
| PTI | Purpura Thrombopénique Idiopathique | In French | |
| PTT | Purpura Thrombotique Thrombocytopénique | In French | → Blood and circulatory system |
| PV | Polyglobulie de Vaquez | In French | → Blood and circulatory system |
| PVL | Periventriculaire Leukomalacie = LMPV (look above) |
In Dutch | → Obstetrics → Neurology |
| PVL | Periventrikuläre Leukomalazie = LMPV (look above) |
In German | → Obstetrics → Neurology |
| PVL | Periventricular Leukomalacia = LMPV (look above) |
In English | → Obstetrics → Neurology |
| QİÇS | Qazanılmış İmmun Çatışmazlığı Sindromu = 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 = SIDA | Síndrome d'Immunodeficiència Adquirida | In Catalan = 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 | In Scottish Gaelic = 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 Azerbaijani | → Immunology and allergy → Infectious diseases |
| RA | Rheumatoide Arthritis | In German | |
| RASMUS | Remote Accessible Software configurable Multi-channel Ultrasound Sampling system | In English | → Software → Diagnostics |
| RD | Rétinopathie Diabétique | In French | → Ophtalmology |
| RIAPS | Regionální Institut Ambulantních Psychosociálních Služeb | In Czech | → Psychology |
| RP | Retinitis Pigmentosa | In Latin | → Ophtalmology |
| RS | Retinoschisis | In English | → Ophtalmology |
| RSN | Renal Support Network (www.rsnhope.org) | In English | → Organizations and associations |
| RSN | Romanian Society of Neurosurgery (www.rsn.ro) | In English | → Organizations and associations → Neurology → Surgery, orthopaedics, ophthalmology |
| RSV | Respiratory Syncytial Virus = VRS | Virus Respiratoire Syncytial | In French |
In English | → Virology |
| S2E | Surveillance Spatiale des Épidémies | In French | → Infectious diseases |
| SARS | Severe Acute Respiratory Disease = SRAS | Syndrome Respiratoire Aigu Sévère | In French |
In English | → Chest diseases → Infectious diseases |
| SCA | Syndrome Coronarien Aigu | In French | → Blood and circulatory system → Cardiology |
| SCARF | Schizophrenia Research Foundation | In English | → Foundations → Psychiatry |
| SCC | Syndrome du Canal Carpien | In French | → 6167 → Neurology |
| SCDI | Syndromis Comparatis Defectu Immunitatis = QİÇS, AIDS, SIDA, VIGS, СПИН, HIES, SEIF, ՁԻԱՀ, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Latin | → Immunology and allergy → Infectious diseases |
| SCoSA | Sarasota Coalition on Substance Abuse | In English | → Organizations and associations |
| SDia | Seminars in Dialysis | In English | → Serial publications, periodicals |
| SEF | Singapore Epilepsy Foundation (www.epilepsy.com.sg) | In English | → Foundations → Neurology |
| SEIF | Siondróm Easpa Imdhíonachta Faighte = QİÇS, AIDS, SIDA, VIGS, СПИН, HIES, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Irish | → Immunology and allergy → Infectious diseases |
| SEP | Sclérose en plaques | In French | |
| SFC | Société Française du Cancer | In French | → Organizations and associations → Oncology |
| SFHTA | Société Française d'Hypertension Artérielle | In French | → Organizations and associations → Blood and circulatory system → Cardiology |
| SFMS | Societé Francophone de Médecine Sexuelle | In French | → Organizations and associations → Sexual problems → Urology → Applied sciences, technology |
| SFN | Society for Neuroscience (www.therio.org) | In English | → Organizations and associations → Psychology → Neurology |
| SFOG | Société Française d'Oncologie Gynécologique | In French | → Organizations and associations → Oncology → Gynaecology |
| SFOP | Société Française d'Oncologie Pédiatrique | In French | → Organizations and associations → Oncology → Pediatry |
| SFPO | Société Française de Pharmacie Oncologique | In French | → Organizations and associations → Pharmacology, toxicology → Oncology |
| SFRO | Société Française de Radiothérapie Oncologique | In French | → Organizations and associations → Oncology |
| 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 |
| SHUa | Syndrome Hémolytique Urémique atypique | In French | |
| SIA | Società Italiana di Andrologia | In Italian | → Organizations and associations → Sexual problems → Urology |
| SIDA | Sindrome d'inmunodefizienzia aquirita = QİÇS, AIDS, VIGS, СПИН, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Aragonese | → Immunology and allergy → Infectious diseases |
| SIDA | Síndrome d'Immunodeficiència Adquirida = QİÇS, AIDS, VIGS, СПИН, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Catalan | → Immunology and allergy → Infectious diseases |
| SIDA | Syndrome d'Immuno-Déficience Acquise = QİÇS, AIDS, VIGS, СПИН, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In French | → Immunology and allergy → Infectious diseases |
| SIDA | Síndrome de Inmunodeficiencia Adquirida = QİÇS, AIDS, VIGS, СПИН, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Spanish | → Immunology and allergy → Infectious diseases |
| SIDA | Sindromo di Imuno-Defekteso Aquirita = QİÇS, AIDS, VIGS, СПИН, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Ido | → Immunology and allergy → Infectious diseases |
| SIDA | Síndrome da imunodeficiência adquirida = QİÇS, AIDS, VIGS, СПИН, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Portuguese | → Immunology and allergy → Infectious diseases |
| SIDA | Sindromul Imunodeficienţei Autodobândite = QİÇS, AIDS, VIGS, СПИН, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Romanian | → Immunology and allergy → Infectious diseases |
| SIDA | Síndrome de Inmuno-Deficiencia Adquirida = QİÇS, AIDS, VIGS, СПИН, HIES, SEIF, ՁԻԱՀ, SCDI, 에이즈, შიდსი, СИДА, СПИД, UHCW, СНІД, UKIMWI (look above) |
In Occitan | → Immunology and allergy → Infectious diseases |
| SIFC | Società Italiana per lo Studio della Fibrosi Cistica | In Italian | → Organizations and associations |
| SIOP | Société Internationale d'Oncologie Pédiatrique | In French | → Oncology → Pediatry |
| SIU | Société Internationale d'Urologie | In French | → Organizations and associations → Urology |
| SIV | Simian Immunodeficiency Virus | In English | → Virology → Immunology and allergy → Infectious diseases |
| SLC | Small cell Lung Carcinoma | In English | → Chest diseases → Oncology |
| SLE | Systemic Lupus Erythematosus = LES (look above) |
In English | → Immunology and allergy |
| sMCJ | Maladie de Creutzfeldt-Jakob sporadique | In French | → Neurology |
| SMP | Syndrome Myéloprolifératif | In French | → Blood and circulatory system |
| SOS | Syndrome d'Obstruction des Sinusoïdes | In French | |
| SPA | Sociedade Portuguesa de Andrologia | In Portuguese | → Organizations and associations → Sexual problems → Urology |
| SPAO | Society of Physician Assistants in Otorhinolaryngology | In English | → Organizations and associations |
| SPAO-HNS | Society of Physician Assistants in Otorhinolaryngology / Head & Neck Surgery | In English | → Organizations and associations → Surgery, orthopaedics, ophthalmology |
| SPLF | Société de Pneumologie de Langue Française | In French | → Organizations and associations → Chest diseases |
| SRA | Système Rénine-Angiotensine | In French | → Cardiology |
| SRAS | Syndrome Respiratoire Aigu Sévère = SARS (look above) |
In French | → Chest diseases |
| SRT | Skin Research and Technology | In English | → Serial publications, periodicals → Dermatology |
| SSMS | Society for Sexual Medicine of Slovenia | In English | → Organizations and associations → Sexual problems → Urology → Applied sciences, technology |
| SSPE | Subakut sklerosierende Panenzephalitis | In German | → Neurology |
| SSSM | Scandinavian Society for Sexual Medicine | In English | → Organizations and associations → Sexual problems → Urology → Applied sciences, technology |
| STB | Sclérose Tubéreuse de Bourneville | In French | → Neurology |
| STD | Sexually Transmitted Disease | In English | → Infectious diseases → Gynaecology |
| STEC | Shiga-like Toxin-producing Escherichia Coli | In English | → Infectious diseases |
| STI | Sexually Transmitted Infections | In English | → Infectious diseases → Gynaecology |
| STSN | Stichting Tubereuze Sclerosis Nederland | In Dutch | → Foundations → Neurology |
| SUDEP | Sudden, Unexpected, Unexplained Death in Epilepsy | In English | → Neurology |
| SUH | Síndrome Urémico Hemolítico = SHU, HUS, ХУС, HÜS (look above) |
In Spanish | → Blood and circulatory system |
| SVAS | Supravalvular aortic stenosis | In English | → Blood and circulatory system |
| SVT | Sang Thrombose Vaisseaux | In French | → Serial publications, periodicals → Cardiology |
| TAG | Trouble Anxieux Généralisé | In French | → Neurology |
| TDAH | Trouble Déficit de l’Attention / Hyperactivité = ADHD | Attention Deficit / Hyperactivity Disorder | In English |
In French | → Neurology |
| TE | Thrombocytémie Essentielle | In French | → Blood and circulatory system |
| TGF | Tumor Growth Factor | In English | → Biochemistry, biophysics → Oncology |
| THADA | Trouble d'Hyperactivité Avec Déficit de l'Attention | In French | → Neurology |
| THS | Tucson Herpetological Society (http://tucsonherpsociety.org) | In English | → Organizations and associations → Infectious diseases |
| TIH | Thrombopénie Immunologique à l'Héparine | In French | → Immunology and allergy |
| TMA | Thrombotic Microangiopathy | In English | → Blood and circulatory system |
| TMN | Tétanos Maternel et Néonatal | In French | |
| TMS | Troubles Musculo-Squelettiques | In French | |
| TNF | Tumor/Tumour Necrosis Factor | In English | → Biochemistry, biophysics → Oncology |
| TOC | Troubles Obsessionnels Compulsifs | In French | → Psychology → Neurology |
| TRAIL | Tumor necrosis factor Related Apoptosis Inducing Ligand | In English | → Biochemistry, biophysics → Oncology |
| TS | Tuberøs Sklerose = TS | Tuberous Sclerosis | In English = ET | Esclerosis Tuberosa | In Spanish |
In Norwegian | → Neurology |
| TS | Tuberous Sclerosis = ET (look above) |
In English | → Neurology |
| TSE | Transmissible Spongiforme Enzephalopathie | In German | → Neurology → Veterinary medicine |
| TSI | Tuberous Sclerosis International | In English | → Organizations and associations → Neurology |
| TSI | Tissue Synchronization Imaging | In English | → Diagnostics |
| TSIV | Tubereuze Sclerosis in Vlaanderen | In Dutch | → Organizations and associations → Neurology |
| TTP | Thrombotic Thrombocytopenic Purpura | In English | → Blood and circulatory system |