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.
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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).
Penicillin history
The discovery of penicillin, one of the major events in the history of medicine. In 1871 the scientist Joseph Lister by chance noticed that the mould which grows on cheese and fruit can make microbes (germs) grow weaker. He made some…
Read the definitionRandom terms
Show more- Nasogastric Referring to the passage from the nose to the stomach. A nasogastric tube is one that is passed through the…
- Obstruction, intestinal See: Intestinal obstruction
- Economy class syndrome The formation of blood clots in veins deep within the legs -- deep vein thrombosis -- occurring during (or…
- Adenosine deaminase (ADA) deficiency A genetic (inherited) condition that results in a immune deficiency disorder called severe combined…
- Thrombocytopenia, heparin-induced See TAR syndrome.
- Aphasia, acquired epileptiform See Landau-Kleffner syndrome
- Fetal alcohol syndrome diagnosis >Small size and weight before and after birth (pre- and postnatal growth retardation); >Brain involvement…
- Splenic artery A large artery within the abdomen that arises from an arterial vessel called the celiac trunk, which emerges…
- Multislice computed tomography See: Multidetector computed tomography
- Shunt 1) To move a body fluid, such as cerebrospinal fluid, from one place to another. 2) A catheter (tube) that…
- Peripheral artery disease A form of peripheral vascular disease in which there is partial or total blockage of an artery, usually one…
- Venous aneurysm A local widening and bulging (an aneurysm) of a vein. As opposed to an arterial aneurysm or a cardiac…