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).
DES
Diethylstilbestrol, the earliest synthetic (man-made) form of a hormone in the estrogen class. DES was once widely prescribed to prevent miscarriages and premature births. Its usage was standard practice in the 1950s and 1960s. Millions of…
Read the definitionRandom terms
Show more- Elastin degrading enzyme See: Elastase
- NSE (neuron-specific enolase) Neuron-specific enolase (NSE) is a substance that has been detected in patients with certain tumors, namely…
- Barium swallow An upper gastrointestinal series (barium swallow) is an X-ray test used to define the anatomy of the upper…
- IgG Immunoglobulin G, a major class of immunoglobulins found in the blood, including many of the most common…
- PVS Pigmented villonodular synovitis
- Vision therapy The use of special eye exercises to address eye defects, such as strabismus. Some vision therapists also…
- Vein, jugular The jugular veins are in the neck and drain blood from the head, brain, face and neck and convey it toward…
- Fat 1 Along with proteins and carbohydrates, one of the three nutrients used as energy sources by the body. The…
- Cholesterol guidelines The guidelines on cholesterol for adults. A 2004 update to the National Cholesterol Education Program's…
- Sperm function The capability of sperm to function -- to penetrate and fertilize the egg
- Ants, fire Originally from S. America. Among the worst insect pests ever to invade the U.S. Red or yellowish ants of…
- Cardiac defibrillator, implantable A device put within the body that is designed to recognize certain types of abnormal heart rhythms…