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).
Fatty acid, trans
An unhealthy substance, also known as trans fat, made through the chemical process of hydrogenation of oils. Hydrogenation solidifies liquid oils and increases the shelf life and the flavor stability of oils and foods that contain them…
Read the definitionRandom terms
Show more- Beta cell, pancreatic A type of cell in the pancreas (the organ of the digestive system located behind the stomach). Within the…
- AVM (arteriovenous malformation) An arteriovenous malformation (AVM) is a congenital disorder (one present at birth) of blood vessels in the…
- Tick typhus Also known as Rocky Mountain spotted fever, an acute febrile (feverish) disease initially recognized in the…
- Angina Angina: Chest pain due to an inadequate supply of oxygen to the heart muscle. The chest pain of angina is…
- Metatarsal One of the five cylindrical bones extending from the heel (the tarsus) to the toes on each foot. The…
- Stricture, esophagus, acute A narrowing or closure of the normal opening of the swallowing tube leading to the stomach, usually caused by…
- National Cancer Institute (NCI) One of the National Institutes of Health (NIH) in the U.S., whose mission is to 'lead a national effort to…
- Cloning The process of making a clone, a genetically identical copy. Cloning can refer to the technique of producing…
- Evolutionarily conserved gene A gene that has remained essentially unchanged throughout evolution. Conservation of a gene indicates that it…
- False negative A result that appears negative but fails to reveal a situation. An example of a false negative: a particular…
- Epidural Outside the dura, the outermost, toughest, and most fibrous of the three membranes (meninges) covering the…
- VDRL test A blood test for syphilis (VDRL stands for Venereal Disease Research Laboratory) that detects an antibody…