MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Vein of Galen aneurysm
A congenital malformation of blood vessels of the brain. Specifically, an arteriovenous (AV) malformation in which blood shunts from cerebral arteries into a dilated vein of Galen (an internal cerebral vein). In newborns this shunt can…
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Show more- Pancreatectomy A procedure in which a surgeon takes out part or all of the pancreas (an organ behind the lower part of the…
- Congenital neutropenia, severe (SCN) Neutropenia, severe (SCN): Children born with this condition lack neutrophils (a type of white blood cell…
- Myocardial infarction, acute See: Acute myocardial infarction
- Analytic specificity How well an assay detects only a specific substance and does not detect closely related substances
- Blister A collection of fluid underneath the top layer of skin (epidermis). One that is more than 5 mm in diameter…
- Study, stomach emptying Also called a gastric emptying study, this test evaluates the emptying of food from the stomach. For a…
- Boutonneuse Fievre boutonneuse or African tick typhus, one of the tick-borne rickettsial diseases of the eastern…
- Hematoma, intracerebral See: Intracerebral hematoma
- Aplastic anemia Anemia due to failure of the bone marrow to produce blood cells, including red and white blood cells as well…
- Nurse, licensed vocational A nurse who has completed a one- or two-year training program in health care and earned a state license. LVNs…
- Cranial nerve, eighth The eighth cranial nerve is the vestibulocochlear nerve. The vestibulocochlear nerve is responsible for the…
- XX male syndrome A syndrome characterized by the presence of an XX sex chromosome complement in an individual with male…