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).
Vena cava
The superior vena cava is the large vein which returns blood to the heart from the head, neck and both upper limbs. The inferior vena cava returns blood to the heart from the lower part of the body. The return of blood via the vena cava…
Read the definitionRandom terms
Show more- Biomagnetic therapy See: Magnet therapy
- Hypovolemic shock See shock.
- Colon polyp A fleshy growth on the inside (the lining) of the colon (the large intestine). Colon polyps are extremely…
- Optic nerve pathways The left and right branches of the optic nerves join behind the eyes, just in front of the pituitary gland…
- Yersinia pestis The bacteria that causes the bubonic plague which in the year 541 (as the Black Death) and later in the…
- Thiazolidinedione (Pronounced THIGH-ah-ZO-li-deen-DYE-own.) A class of drugs for type 2 diabetes that lower the blood sugar by…
- Xanthinuria An inherited metabolic disorder in which there is deficiency of an enzyme needed to process xanthine, a…
- Serendipity An accidental and fortunate discovery. Not all good medical research by any means is done by design. Some is…
- GM1 gangliosidosis A genetic lipid storage disorder that is similar in certain respects to Hurler syndrome and Tay-Sachs disease…
- High protein diet A high protein diet is a type of weight loss plan that emphasizes consumption of high-protein-containing…
- Hepatic hemangioma Hepatic hemangioma: A common benign tumor of the liver made up of small blood vessels. It is 4-6 times more…
- Human Genome Project International effort aimed at identifying and sequencing (ordering) all of the bases in the human genome…