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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Tiredness
See: Tired
Read the definitionRandom terms
Show more- Calcimimetic A drug in a class of orally active, small molecules that decrease the secretion of parathyroid hormone (PTH)…
- Ultraviolet radiation Invisible rays that are part of the energy that comes from the sun. Ultraviolet radiation can burn the skin…
- Lymphangioma A structure consisting of a collection of blood vessels and lymph vessels that are overgrown and clumped…
- Hunter syndrome A genetic metabolic disorder that arises from deficiency of the enzyme iduronate sulfatase, resulting in…
- Food poisoning Food poisoning: A common flu-like illness typically characterized by nausea, vomiting and diarrhea, due to…
- Atrial septal defect (ASD) A hole in the septum, the wall, between the atria, the upper chambers of the heart. Commonly called an ASD…
- Bones of the arm, wrist and hand There are 64 bones in the upper extremity. They consist of 10 shoulder and arm, 16 wrist and 38 hand bones. >…
- Pyarthrosis Infectious arthritis. Pyarthrosis is typically caused by a bacterial infection in the joint. Diagnosis is…
- Drain, JP See: JP drain
- Chemoprophylaxis The use of a chemical agent to prevent the development of a disease. See: Chemoprevention
- Hirschsprung disease Hirschsprung disease: A congenital abnormality (birth defect) of the bowel in which there is absence of the…
- Behavior, automatic A behavior that is performed without conscious knowledge and that does not appear to be under conscious…