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.
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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).
Arrhythmias, atrial
Abnormal heart rhythm due to electrical disturbances in the atria (the upper chambers of the heart) or the AV node 'relay station', leading to fast heart beats. Examples of atrial arrhythmias includes atrial fibrillation, atrial flutter…
Read the definitionRandom terms
Show more- Palate, cleft An opening in the roof of the mouth (the palate) due to a failure of the palatal shelves to come fully…
- SRAS Syndrome respiratoire aigu severe (in French). In English, severe acute respiratory syndrome or SARS
- Metastasize The spread from one part of the body to another. When cancer cells metastasize and cause secondary tumors…
- Empirical Based on experience and observation, rather than systematic logic. Experienced physicians often use empirical…
- Lean body mass The mass of the body minus the fat (storage lipid). There are a number of methods for determining the lean…
- Flat feet A condition of the feet in which the arch of the instep is flattened and the entire sole touches the ground…
- Proximal myotonic myopathy See: Myotonic dystrophy type 2
- Wet market A live animal market, a common sight in many areas of the world and a source of influenza viruses and other…
- Swallower In the drug trade, an individual used as a drug courier. Also called a body packer. See: Body packer
- Hypnolepsy A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep. Also known as…
- Progressive dementia with cerebellar ataxia See: Gerstmann-Straussler-Scheinker syndrome
- Biology, molecular See: Molecular biology