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).
Pericardial tamponade
A life-threatening situation in which there is such a large amount of fluid (usually blood) inside the pericardial sac around the heart that it interferes with the performance of the heart. The end result, if untreated, is low blood…
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- Bone cyst, simple A solitary fluid-filled cyst (cavity) in a bone, usually in the shaft of a long bone, especially the humerus…
- TACE Transarterial chemoembolization, a procedure in which the blood supply to a tumor is blocked (embolized) and…
- Distention The state of being distended, enlarged, swollen from internal pressure. For example, on inhalation there is…
- Clinical trials Clinical trials: Trials to evaluate the effectiveness and safety of medications or medical devices by…
- NCI (National Cancer Institute) The National Cancer Institute is one of the National Institutes of Health (NIH) in the U.S. The mission of…
- Anastomosis The connection of normally separate parts or spaces so they intercommunicate. An anastomosis may be naturally…
- Osteopenia Mild thinning of the bone mass, but not as severe as osteoporosis. Osteopenia results when the formation of…
- Disease, Pelizaeus-Merzbacher See: Polycystic ovarian syndrome.
- Rheumatoid arthritis Rheumatoid arthritis: An autoimmune disease which causes chronic inflammation of the joints, the tissue…
- Federal Emergency Management Agency Better known as FEMA, an agency of the US government dedicated to rapid response to disasters, both man-made…
- Abscess, peritonsillar See: Peritonsillar abscess