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).
Angina pectoris
Chest pain that is typically severe and crushing with a feeling just behind the breastbone (the sternum) of pressure and suffocation, due to an inadequate supply of oxygen to the heart muscle. The term 'angina pectoris' comes from the…
Read the definitionRandom terms
Show more- Herbicide A chemical pesticide designed to control or destroy plants, weeds, or grasses. Herbicides tend to have…
- German measles (historical note) In 1941 N. M. Gregg, an Australian ophthalmologist, recognized that infection of the mother with German…
- Rubeola (measles) Rubeola is the ordinary measles, an acute highly contagious viral disease with fever, runny nose, cough, red…
- Pancreatic alpha cell A type of cell in the pancreas (the organ of the digestive system located behind the stomach). Within the…
- Matter, gray The cortex of the brain which contains nerve cell bodies. The gray matter is as opposed to the white matter…
- Contusion Another name for a bruise. What is a bruise ? A bruise, or contusion, is caused when blood vessels are…
- Psoralen Any of a number of drugs and other substances containing chemicals that react with ultraviolet (UV) light to…
- Marburg virus An inherited disorder of connective tissue characterized by abnormalities of the eyes, skeleton, and…
- Riley-Day syndrome Eponym for familial dysautonomia. See: Familial dysautonomia.
- Aspirin resistance 1. The inability of aspirin to protect a person from cardiovascular events such as heart attacks and strokes…
- Obesity, exogenous Overweight caused by consuming more food than the person's activity level warrants, leading to increased fat…
- Dieldrix Trade name of the insecticide dieldrin. See: Aldrin and dieldrin