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).
Vertex
The top of the head. In a vertex presentation, the top of the baby's head comes first at delivery. The word 'vertex' in Latin means a 'whirlpool, whirlwind, top of the mountain, or the top of the head.' Why 'top of the head'? Because the…
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Show more- Venom A poison, particularly one secreted by an animal. For examples, bee venom, snake venom, scorpion venom, and…
- Ebola virus A notoriously deadly virus that causes fearsome symptoms, the most prominent being high fever and massive…
- Agenesis of the gallbladder This is a condition in which the gallbladder fails to develop. This happens in approximately one out of every…
- Synovial osteochondromatosis A malignant sarcoma of soft tissue that arises near but not in a joint, most often in an adolescent or young…
- Cracked tooth syndrome A toothache caused by a broken tooth (tooth fracture) without associated cavity or advanced gum disease…
- Parkinsonism 1. Parkinson disease. 2. A syndrome similar to Parkinson disease, for example, as a side effect of an…
- Pest (plague) An infectious disease due to a bacteria called Yersinia pestis. Y. pestis mainly infects rats and other…
- Familial hypercholesterolemia The most common inherited type of hyperlipidemia (high lipid levels in blood). One in every 500 children is…
- Southeast Asian hemorrhagic fever A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal pain, hemorrhage…
- Antielastase An inhibitor of the action of the enzyme elastase. Alpha-1 antitrypsin is an antielastase. Also called an…
- Cerebral herniation The abnormal protrusion of brain tissue through an opening when there is increased intracranial pressure…
- Test, exercise A test (sometimes called the treadmill test or exercise treadmill test) in which a continuous…