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).
Stroke
Stroke: The sudden death of some brain cells due to a lack of oxygen when the blood flow to the brain is impaired by blockage or rupture of an artery to the brain. A stroke is also called a cerebrovascular accident or, for short, a CVA…
Read the definitionRandom terms
Show more- Aortic insufficiency Incomplete closure of the aortic valve resulting in aortic regurgitation, the return of blood from the aorta…
- Appendix cancer A malignancy of the appendix, accounting for about 1 in 200 of all gastrointestinal malignancies. Although…
- QHC Qualified health claim
- Menetrier's disease See: Giant hypertrophic gastritis
- Scratch test for allergy A mammogram (an X-ray of the breast) in women who have no signs of breast cancer. It usually involves two…
- Noisome Offensive to the senses and especially disgusting, offensive, or harmful to the sense of smell. For example…
- Baby, fetal alcohol syndrome See: Fetal alcohol syndrome
- Category 4 storm See: Category four hurricane
- Autonomic neuropathy Disease of the nerves affecting mostly the internal organs such as the bladder muscles, the cardiovascular…
- Krukenberg tumor A tumor of the ovary caused by the spread of stomach cancer. When the stomach cancer spreads to an ovary, the…
- Defibrillation The use of a carefully controlled electric shock, administered either through a device on the exterior of the…
- FALDH deficiency Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease usually characterized by a…