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).
Tablet splitting
The practice of cutting tablets in half. The reason is usually financial. To reduce costs, a physician may prescribe pills that have twice the dose a patient needs and then ask the patient to split the pills in half. To make sure the…
Read the definitionRandom terms
Show more- EGD Epidermal growth factor. A polypeptide (small protein) that is a powerful mitogen. (It stimulates cells to…
- Dermal Suffix indicating a relationship to the skin. As in ectodermal, endodermal, and mesodermal; epidermal; and an…
- MCP Membrane cofactor protein. A ubiquitous protein on the surface of cells that regulates complement and is…
- Automatic seizure A form of complex partial seizure characterized by automatisms, which are unconscious movements that may…
- External ear There are three sections of the ear. They are the external ear, the middle ear, and the inner ear. The…
- Hughes Investigator See: Howard Hughes Medical Institute
- DNA, satellite DNA that contains many tandem (not inverted) repeats of a short basic repeating unit. Satellite DNA is…
- Surgery, GERD (fundoplication) A surgical technique that strengthens the barrier to acid reflux when the lower esophageal sphincter does not…
- Transdifferentiation An instrument that converts electrical energy into mechanical energy. A transducer can also act as a…
- Chemoprophylaxis The use of a chemical agent to prevent the development of a disease. See: Chemoprevention
- H. floresiensis See: Homo floresiensis
- Coronary artery spasm A spasm (a sudden constriction) of one of the coronary arteries depriving the (myocardium (the heart muscle)…