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).
Snellen's chart
The familiar eye chart used to measure how well you see at various distances. Snellen's chart is imprinted with block letters that line-by-line decrease in size, corresponding to the distance at which that line of letters is normally…
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Show more- Gingivitis, necrotizing This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- X-ray crystallography The use of X-rays of known wavelength to learn the structure of any crystalline material. Put otherwise…
- Cholecystitis Inflammation of the gallbladder, a complication of gallstones which are formed by cholesterol and pigment…
- Evacuation supplies kit Endovascular aneurysm repair. A procedure to repair an aneurysm of the aorta. In EVAR a stent is placed in…
- Ectopic In the wrong place. Out of place. An ectopic kidney, for example, is one that is not in the usual location…
- Darier disease A genetic skin disease characterized by slowly progressive hardening of the skin (keratoses) around the hair…
- Locoregional Limited to a local region. See also: Locoregional anesthesia; Locoregional metastasis
- Interleukin-4 A protein that stimulates the immune system to develop mast cells, resting T-cells, and activated B-cells…
- Teratogen, Ecstasy as Ecstasy is an illicit drug considered a recreational or party drug. It acts as both a stimulant and a…
- Eye chart, Snellen's The familiar eye chart used to measure how well you see at various distances. Snellen's chart is imprinted…
- Toxin, anthrax The toxic substance secreted by the bacterium Bacillus anthracis, the causative agent of the disease anthrax…
- Indicate In medicine, to make a treatment or procedure advisable because of a particular condition or circumstance…