MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Syndrome, long QT
See Long QT syndrome
Read the definitionRandom terms
Show more- Unstable diabetes A type of diabetes when a person's blood glucose (sugar) level often swings quickly from high to low and from…
- Tympanostomy tube A small plastic tube inserted into the eardrum to keep the middle ear aerated for a prolonged period of time…
- Elder abuse The physical, sexual, or emotional abuse of an elderly person, usually one who is disabled or frail. Elder…
- Background radiation Radiation that comes from environmental sources including the earth's crust, the atmosphere, cosmic rays, and…
- DT Diphtheria-Tetanus vaccine.
- Saccular aneurysm An aneurysm that resembles a small sack. A berry aneurysm is typically saccular. An aneurysm is a localized…
- Spinal Tap Also known as a lumbar puncture or 'LP', a spinal tap is a procedure whereby spinal fluid is removed from the…
- Tampon A tampon is a pack or pad used to plug, to stanch, to stop the flow of blood or other fluids. The tampon may…
- Pulmonology The study and science of the anatomy, physiology, and pathology of the lungs. See also: Pulmonary medicine
- DDH (developmental dislocation of the hip) The abnormal formation of the hip joint in which the ball at the top of the thighbone (the femoral head) is…
- Vaccinia adverse reaction See Smallpox vaccination adverse reaction
- Glycopeptide A short chain of amino acids that has sugar molecules attached to it. A glycoprotein is similar in structure…