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).
Tamponade, pericardial
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…
Read the definitionRandom terms
Show more- Hormone A chemical substance produced in the body that controls and regulates the activity of certain cells or…
- Test, stool occult blood A test to see whether there is blood in the bowel movement. Also called a fecal occult blood test: A test to…
- Spasmodic dysphonia A voice disorder caused by involuntary movements of one or more muscles of the larynx or voice box. People…
- Therapy, interpersonal See: Interpersonal therapy
- Antihistamines Drugs that combat the histamine released during an allergic reaction by blocking the action of the histamine…
- Gingivitis, ulcerative This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Mask, oxygen A mask that covers the mouth and nose, and is hooked up to an oxygen tank. It delivers oxygen directly to the…
- Walker, baby A device that allows a baby to move about in a half-seated, half-upright position. A 'walker' may…
- Androgen ablation Treatment designed to suppress or block the production of male hormones. Androgen suppression can be achieved…
- Hemodialysis catheter See: Catheter, hemodialysis
- Situs inversus totalis A condition in which there is complete right to left reversal (transposition) of the thoracic and abdominal…
- Reaction kinetics Kinetics (with an 's' at the end) refers to the rate of change in a biochemical (or other) reaction, the…