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).
Mitral valve
A valve in the heart situated between the left atrium and the left ventricle that permits blood to flow from the left atrium into the left ventricle but not in the reverse direction. The mitral valve has two flaps (cusps). It is called…
Read the definitionRandom terms
Show more- Mutation, germline Mutation, germline: A heritable change in the DNA that occurred in a germ cell (a cell destined to become an…
- Restriction site A sequence in DNA that can be recognized and cut by a specific restriction enzyme.
- TSD Abbreviation for Tay-Sachs disease, a genetic metabolic disorder. See: Tay-Sachs disease
- Congenital vaccinia Infection of the fetus in the last trimester of pregnancy due to bloodborne dissemination of the vaccinia…
- Premature ventricular beat See: Extrasystole
- Metatarsus The part of the foot that lies just beyond the tarsus, between the tarsus and the toes. The skeleton of the…
- Coitus Sexual union of a male and a female; also called sexual intercourse. Coitus begins when the male inserts his…
- Cancer, lymphoma, Hodgkin (adult) A type of lymphoma (cancer of the lymphatic system). The most common symptom of Hodgkin disease is a painless…
- Annexin A1 One of the annexins, a family of proteins that share the property of binding calcium and phospholipids. The…
- Ophthalmology The art and science of eye medicine.
- Antiinfective Something capable of acting against infection, by inhibiting the spread of an infectious agent or by killing…
- Telemedicine The use of medical information exchanged from one site to another via electronic communications for the…