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).
Essential
1. Something that cannot be done without.2. Required in the diet, because the body cannot make it. As in an essential amino acid or an essential fatty acid. 3. Idiopathic. As in essential hypertension. 'Essential' is a hallowed term…
Read the definitionRandom terms
Show more- Syndrome, Gulf War See: Gulf War syndrome
- Abdominal guarding Tensing of the abdominal wall muscles to guard inflamed organs within the abdomen from the pain of pressure…
- Munchausen syndrome (This is an alternate entry to Munchhausen syndrome with two h's in Munchhausen. Whole medical reports have…
- Neuroscientist A scientist who studies the nervous system, including the neural basis of behavior; parts of the nervous…
- NGFB The beta polypeptide chain of nerve growth factor
- Goose bump A temporary local change in the skin when it becomes rougher due to erection of little muscles, as from cold…
- Drugs during pregnancy, dangerous A teratogen is an agent that can disturb the development of the embryo or fetus. Teratogens halt the…
- First American medical journal The Medical Repository, founded in 1797 and published quarterly until 1824. The Medical Repository was the…
- Tabun >Runny nose >Watery eyes >Small, pinpoint pupils >Eye pain >Blurred vision >Drooling and excessive sweating…
- Serositis Inflammation of the serous tissues of the body. The serous tissues line the lungs (pleura), heart…
- Disease, Ritter This is the scalded skin syndrome, a potentially serious side effect of infection with the Staph…
- Joint, calcaneocuboid The calcaneocuboid joint is located in the foot between the calcaneus bone (the heel bone) and the cuboid…