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).
Caduceus
1. A rod with two snakes entwined about it topped by a pair of wings.2. An insignia of a caduceus meant, mistakenly, to symbolize a physician. The caduceus served as the symbol of Hermes and Mercury, the Greek and Roman messenger gods. The…
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Show more- Homo- An amino acid produced by the body, usually as a byproduct of consuming meat. Homocysteine is made from…
- Eruptive xanthoma The sudden eruption on the skin of crops of pink papules (firm pea-sized bumps) with a creamy center. They…
- ITP 1. Idiopathic thrombocytopenic purpura. (Original use.)2. Immune thrombocytopenic purpura. (Newer use). Note…
- Miller's lung A type of allergic inflammation of the lungs (hypersensitivity pneumonitis) in people who are hypersensitive…
- Keratotomy A surgical incision (a cut) made into the cornea. A radial keratotomy is a surgical procedure designed to…
- Aura A premonition. There is often an aura before a migraine or a grand mal seizure. The aura, a symptom of brain…
- Apraxia The inability to execute a voluntary motor movement despite being able to demonstrate normal muscle function…
- Pachy- (prefix) Thick. As in pachydactyly (thick fingers), pachydermatous (thick fingers) and pachyonychia (thick nails)…
- Cortisone An adrenocorticoid hormone, a naturally occurring hormone made by and secreted by the adrenal cortex, the…
- Lenz microphthalmia syndrome A genetic disorder characterized by microphthalmia (small eye) or anopthalmia (no eye) associated with…
- Operation, Macewen A surgical operation for inguinal hernia designed by Sir William Macewen (1848-1924), a surgeon in Glascow…
- Acute pancreatitis Sudden inflammation of the pancreas. The pancreas abruptly becomes inflamed and then gets better. Some people…