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).
Cardiac conduction system
The electrical conduction system that controls the heart rate. This system generates electrical impulses and conducts them throughout the muscle of the heart, stimulating the heart to contract and pump blood. Among the major elements in…
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Show more- Intrauterine insemination (IUI) A procedure in which a fine catheter (tube) is inserted through the cervix (the natural opening of the…
- Reaction kinetics Kinetics (with an 's' at the end) refers to the rate of change in a biochemical (or other) reaction, the…
- Fear of pleasure An abnormal, excessive, and persistent fear of pleasure. Sufferers with this most puritanical of phobias…
- Defibrillation The use of a carefully controlled electric shock, administered either through a device on the exterior of the…
- Selective mutism An inability to speak in certain situations. See also apraxia, autism, mutism.
- PJS Polycystic kidney disease.
- Hydroxytryptamine See: Serotonin
- Fourth cranial nerve The fourth cranial nerve, the trochlear nerve, is the nerve supply to the superior oblique muscle of the eye…
- Fingerprint 1. The characteristic dermal ridges on the finger. This is the original meaning of fingerprint. 2. The…
- Sib Sibling
- Defecation syncope The temporary loss of consciousness (syncope) upon defecating (having a bowel movement). Syncope is the…
- Sideropenic dysphagia See: Plummer-Vinson syndrome