MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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).
Left heart hypoplasia syndrome
A form of congenital heart disease in which the whole left half of the heart (including the aorta, aortic valve, left ventricle and mitral valve) is underdeveloped (hypoplastic). Blood returning from the lungs has to flow through an…
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Show more- PANDAS An acronym for Pediatric Autoimmune Disorders Associated with Strep. PANDAS is the sudden onset of symptoms…
- Acetylcholinesterase An enzyme that breaks down the neurotransmitter acetylcholine at the synaptic cleft (the space between two…
- Vincent stomatitis This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Meningitis Inflammation of the meninges, usually due to a bacterial infection but sometimes from viral, protozoan, or…
- NSE (neuron-specific enolase) Neuron-specific enolase (NSE) is a substance that has been detected in patients with certain tumors, namely…
- Claustrophobia An abnormal and persistent fear of closed spaces, of being closed in or being shut in, as in elevators…
- Nutritionist 1) In a hospital or nursing home, a person who plans and/or formulates special meals for patients. It can…
- Trip-hammer pulse See: Pulse, water hammer
- Niemann-Pick disease A biochemical disorder affecting a lipid (fat) called sphingomyelin, resulting usually in progressive…
- Neo- (prefix) Prefix meaning new. From the Greek 'neos', new, young, fresh, recent. Examples of terms starting with 'neo-'…
- Soft chancre See: Chancroid
- History, medical See: Medical history