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.
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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).
Superior vena cava syndrome
Superior vena cava syndrome: The symptoms that result from compression of the large vein that carries blood down to the heart. The superior vena cava is a large vein that transmits blood from the upper body back to the heart. The superior…
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Show more- Schistosoma japonicum A species of trematode worm that parasitizes humans and that (like S. mansoni) causes liver and…
- Spinal cord disease in diabetes Involvement of the spinal cord in people with diabetes. Most of the neurologic attention in diabetes mellitus…
- Tropical cyclone A regionally specific name for a strong tropical cyclone in the Southwest Indian Ocean. Other terms for…
- Guillain-Barre syndrome Guillain-Barre syndrome: A disorder characterized by progressive symmetrical paralysis and loss of reflexes…
- Deglutition The act of swallowing, particularly the swallowing of food. The muscles of deglutition are the muscles…
- Epidemiology, clinical Epidemiology focused specifically upon patients. Epidemiology is the study of populations in order to…
- Malignant 1. Tending to be severe and become progressively worse, as in malignant hypertension. 2. In regard to a…
- Lennox syndrome A severe form of epilepsy that is characterized by the onset in early childhood of frequent seizures of…
- Stasis Stasis refers to a stoppage or slowdown in the flow of blood (or other body fluid such as lymph). A stasis…
- Absence of the breast A rare condition wherein the normal growth of the breast or nipple never takes place. They are congenitally…
- Azotemia A higher than normal blood level of urea or other nitrogen containing compounds in the blood. The hallmark…
- Abstinence The voluntary self-denial of food, drink, or sex. Today, abstinence most commonly refers to denial of one's…