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).
Williams syndrome
See: Circle of Willis.
Read the definitionRandom terms
Show more- Bezoar A clump or wad of swallowed food and/or hair. Bezoars can sometimes be found to cause blockage of the…
- Discharge, breast See: Breast discharge
- Pseudomonas aeruginosa The versatile 'blue-green pus bacteria' that opportunistically infects people, especially those who are…
- Medical entomology The branch of science that deals with insects that cause disease or that serve as vectors of organisms that…
- Repetitive stress injury Stress injury: A type of injury from recurrent stress, often associated with the heavy use of computers…
- Lipoid nephrosis The earliest stage of nephrosis (the nephrotic syndrome of childhood). See: Minimal change disease. See also…
- Histidine An amino acid, one of the 20 building blocks of protein. An essential amino acid, histidine is present in…
- Cranial nerve XI The eleventh cranial nerve is the accessory nerve. The twelve cranial nerves, the accessory nerve included…
- Occupational Safety and Health, Nat'l Institut for Better known as NIOSH, the National Institute for Occupational Safety and Health is a US Federal agency…
- Ventricular Pertaining to the ventricles, the lower chambers of the heart, as in ventricular fibrillation and ventricular…
- CD4 count, absolute See: Absolute CD4 count
- Bile duct cancer An uncommon type of cancer that arises from the bile duct, the tube that connects the liver and the…