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).
Ventricular fibrillation
An abnormal irregular heart rhythm whereby there are very rapid uncoordinated fluttering contractions of the lower chambers (ventricles) of the heart. Ventricular fibrillation disrupts the synchrony between the heartbeat and the pulse…
Read the definitionRandom terms
Show more- Sanfilippo syndrome The most common disorder of mucopolysaccharide metabolism, a syndrome in which the onset of clinical…
- Ear drum See: Eardrum
- Pharma food A food product with a pharmacological additive meant to improve health, for example, to lower cholesterol
- Artery, central retinal The blood vessel that carries blood into the eye and supplies nutrition to the retina. The counterpart to the…
- Sunburn Sunburn is an inflammation of the skin that develops in response to exposure to ultraviolet (UV) radiation…
- Therapy, behavior A treatment program that involves substituting desirable behavior responses for undesirable ones
- Arcus senilis A cloudy opaque arc or circle around the edge of the eye, often seen in the eye of the elderly.
- Agoraphobia Agoraphobia: An abnormal and persistent fear of public places or open areas, especially those from which…
- Turcot syndrome A genetic disease characterized by polyps in the colon (large intestine) in addition to tumors in the brain…
- BRCA2 A gene that normally acts to restrain the growth of cells in the breast and ovary but which, when mutated…
- Q arm of a chromosome The long arm of a chromosome. All human chromosomes have 2 arms -- a short arm and a long arm -- that are…
- Resolution In genetics, resolution refers to the degree of molecular detail on a physical map of DNA, ranging from low…