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).
Aorta, descending
The descending aorta is the part of the aorta, the largest artery in the body, that runs down through the chest and the abdomen. The descending aorta starts after the arch of the aorta and ends by splitting into two great arteries (the…
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Show more- Tactile device A mechanical instrument that makes use of touch to help individuals who have certain disabilities, such as…
- Immunity, innate See: Innate immunity
- ECST ECST stands for the exercise cardiac stress test, the most widely used cardiac (heart) screening test. In an…
- Film, PA An X-ray picture in which the beams pass from back-to-front (posteroanterior). As opposed to an AP…
- Bursitis, calcific A bursa is a thin fluid-filled sac that reduces friction forces between tissues of the body. Chronic…
- CIC Completely-in-the-canal (the ear canal). See: Completely-in-the-canal hearing aid. See also: Hearing aid
- Alpha Omega Alpha The medical honor society, the medical school equivalent of Phi Beta Kappa, in the United States and Canada…
- Pericardial tamponade A life-threatening situation in which there is such a large amount of fluid (usually blood) inside the…
- Acetate A molecular ion derived from acetic acid. The formula of acetate is CH3COO-
- Ligament, medial collateral knee The knee joint is surrounded by a joint capsule with ligaments strapping the inside and outside of the joint…
- Transaminase, serum glutamic oxaloacetic An enzyme that is normally present in liver and heart cells, and is released into blood when the liver or…
- Dizziness Dizziness: Painless head discomfort with many possible causes including disturbances of vision, the brain…