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).
Yellow fever
An acute systemic (bodywide) illness caused by a virus called a Flavivirus. In severe cases, the viral infection causes a high fever, bleeding into the skin, and necrosis (death) of cells in the kidney and liver. The damage done to the…
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Show more- Vitamin A >Beta carotene: An antioxidant which protects cells against oxidation damage that can lead to cancer. Beta…
- Hiatus An opening, as in the diaphragm. When there is an unusually wide opening in the diaphragm, there can be a…
- HHT Abbreviation for the disease called hereditary hemorrhagic telangiectasia. See: Hereditary hemorrhagic…
- Virus A microorganism smaller than a bacteria, which cannot grow or reproduce apart from a living cell. A virus…
- Familial tremor See: Essential tremor
- Calf The belly or fleshy hind part of the leg below the knee. The calf is made up mainly of the gastrocnemius…
- Spots in front of the eyes Also known as 'floaters', blurry spots that drift in front of the eyes but do not block vision. The blur is…
- Category one hurricane A hurricane with winds 74-95 mph (64-82 kt or 119-153 km/hr). Storm surge generally 4-5 ft above normal. No…
- Colorectal polyp A polyp (a fleshy growth) on the inside lining of the colon or rectum. For more information, see: Colon polyp
- Bladder cancer risks Smoking is a major risk factor. Cigarette smokers develop bladder cancer 2-3 times more often than do…
- Sawbones Slang name for a surgeon and, in particular, an orthopaedic surgeon (who may have 'sawed bones' on the…
- Cerebral vascular See: Cerebrovascular