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).
Pneumomediastinum
Free air in the mediastinum (space betweens the lungs) which may give rise to pneumothorax or pneumopericardium and compromise the lungs or heart.
Read the definitionRandom terms
Show more- Capillary One of the tiny blood vessels that connect the arterioles (the smallest divisions of the arteries) and the…
- Toxaphene A chlorinated hydrocarbon insecticide currently banned for all uses in the US. Breathing, eating, or drinking…
- Deficiency, ceruloplasmin Lack of the protein ceruloplasmin from the blood and accumulation of iron in the pancreas, liver and brain…
- Spinal nerve One of the nerves that originates in the spinal cord. There are 31 pairs of spinal nerves. They consist of…
- LQTS The long QT syndrome. See Long QT syndrome
- Deficiency, ankyrin Known also as hereditary spherocytosis (HS), this is a genetic disorder of the red blood cell membrane…
- Folate Folic acid, one of the B vitamins that is a key factor in the synthesis (the making) of nucleic acid (DNA and…
- Karyotyping The preparation, analysis, and interpretation of a karyotype
- Reservoir, Ommaya A device implanted under the scalp that is used to deliver anticancer drugs to the cerebrospinal fluid, the…
- Interstitial radiation Radiation therapy in which a radioactive material is placed directly into a tumor.
- RAST An allergy test done on a sample of blood. The aim with RAST, as with skin tests, is to check for allergic…
- Calcipotriene A synthetic form of vitamin D3 that can be applied to the skin to treat psoriasis