MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Arterial aneurysm
An outpouching (aneurysm) of an artery. As opposed to a venous or cardiac aneurysm. An aneurysm is a localized widening (dilatation) of an artery, vein, or the heart. At the area of an aneurysm, there is typically a bulge and the wall is…
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Show more- Systemic mastocytosis A form of mastocytosis characterized by infiltrates of mast cells in the skin, lymph nodes, liver, spleen…
- Autoimmune polyglandular syndrome (APS) A genetic autoimmune disease with an extraordinary array of clinical features but characterized most often by…
- GIST Gastrointestinal stromal tumor
- Anovular Not accompanied by ovulation, the release of an ovum (egg) from the ovary. Synonymous with anovulatory
- American Cancer Society (ACS) A 'nationwide community-based voluntary health organization dedicated to eliminating cancer as a major health…
- Vision, peripheral See: Peripheral vision
- Calcium channel blocker A drug that blocks the entry of calcium into the muscle cells of the heart and the arteries. It is the entry…
- Fructose A sugar that occurs naturally in fruits and honey. Fructose has 4 calories per gram
- Hemophobia An abnormal and persistent fear of blood. Sufferers of this very common phobia dread the sight of their own…
- Dysentery, amebic Dysentery (inflammation of the intestine) with ulcers in the colon due to infection with an ameba (Entamoeba…
- Urea breath test (UBT) The urea breath test (UBT) is a procedure for diagnosing the presence of a bacterium, Helicobacter pylori (H…
- Homologies Similarities in DNA or protein sequences between individuals or between species