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).
Aneurysm, brain
An aneurysm is a localized widening (dilatation) of an artery, vein, or the heart. At the area of an aneurysm, there is typically a bulge and the wall is weakened and may rupture. The word 'aneurysm' comes from the Greek 'aneurysma'…
Read the definitionRandom terms
Show more- Baskerville effect A fatal heart attack triggered by extreme psychological stress. The effect is named after Charles…
- Kartagener syndrome A genetic syndrome characterized by sinusitis, bronchiectasis (widening and inflammation of the bronchi)…
- Leon virus Type 3 poliovirus. Named after the patient in California from whom this virus was first isolated. There are…
- Familial advanced sleep-phase syndrome (FASPS) An inherited abnormal sleep pattern in which the individual is a 'morning lark' and consistently goes to…
- Nerve, pinched See: Nerve compression
- Fertilization, in vitro IVF, a laboratory procedure in which sperm are placed with an unfertilized egg in a Petri dish to achieve…
- Cholangiogram, IV See: Intravenous cholangiogram
- CLL Chronic lymphocytic leukemia. See: Leukemia, chronic lymphocytic
- Lazy eye An eye that diverges in gaze. A lazy eye is formally called strabismus. A lazy eye (strabismus) can be due to…
- Extradural hematoma See: Epidural hematoma
- Library, arrayed In genetics, arrayed libraries of DNA clones are used for many purposes, including screening for a specific…
- M. avium Mycobacterium avium