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).
Pulmonary embolus
A blood clot that has passed into and occluded the lung's pulmonary artery. An embolus causes an embolism. In this case, the embolus, a clot or foreign material, has been carried through the blood into the pulmonary artery or one of its…
Read the definitionRandom terms
Show more- Rabies Rabies: A potentially fatal viral infection that attacks the central nervous system. The rabies virus is…
- Melanoma, iris See: Intraocular melanoma
- Pathogenicity island The genetic element, the 'island of evil', within the genome of an organism that is responsible for its…
- Megacolon An abnormally enlarged colon.
- Posterior The space in the eye behind the iris and in front of the lens. (The iris is the colored ring of tissue that…
- Osteoid osteoma A benign tumor of bone tissue. It emerges most often in the teens or 20s, and is found most frequently in the…
- Trunk bones The bones of the human trunk, 51 bones in all, consisting of 26 vertebrae, 24 ribs and the sternum. The 26…
- PEJ Percutaneous endoscopic jejunostomy
- AV (atrioventricular) AV is the standard medical abbreviation for atrioventricular, a combination that means pertaining to the…
- Injury, hangman (Hangman's fracture) Injury to one of the two crescent-shaped cartilage pads between the two joints formed by the femur (the thigh…
- Gluteal Pertaining to the buttock region formed by the gluteal muscles (the gluteus maximus, gluteus medius, and…
- Houseboat carbon monoxide poisoning The invisible and potentially lethal danger of carbon monoxide on houseboats. Carbon monoxide poisoning is a…