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).
Abdominal aorta
The abdominal aorta is the final section of the aorta, the largest artery in the body. It is a continuation of the thoracic aorta. It begins at the diaphragm, and runs down to the point where it ends (by splitting in two to form the common…
Read the definitionRandom terms
Show more- Valve, bicuspid One of the four valves of the heart, this one is situated between the left atrium and the left ventricle. It…
- Alpha helix The coiled structure of many proteins consisting of a single chain of amino acids stabilized by hydrogen…
- Glutathione S-transferase A family of enzymes that utilize glutathione in reactions contributing to the transformation of a wide range…
- Histiocytosis X Now called Langerhans cell histiocytosis. This disease is subclassified into eosinophilic granuloma, Letterer…
- Saddle gall A sore on a horse caused by an ill-fitting saddle. Also called a saddle sore
- Doxorubicin cardiomyopathy Brand name: Vibramycin. A synthetic broad-spectrum antibiotic derived from tetracycline. Doxycycline is used…
- Melena Stools or vomit stained black by blood pigment or dark blood products.
- Vasodepressor syncope The temporary loss of consciousness in a particular kind of situation. (Syncope is temporary loss of…
- Proctocele See: Rectocele
- Kegel exercises Exercises designed to increase muscle strength and elasticity in the female pelvis. Kegel exercises may be…
- Vision therapy The use of special eye exercises to address eye defects, such as strabismus. Some vision therapists also…
- Encephalitis, eastern equine See: Eastern equine encephalitis