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).
Narcolepsy
Narcolepsy: A neurological disorder marked by a sudden recurrent uncontrollable compulsion to sleep. Narcolepsy is often associated with cataplexy (a sudden loss of muscle tone and paralysis of voluntary muscles associated with a strong…
Read the definitionRandom terms
Show more- Disease, hyaline membrane Respiratory disease of the newborn, especially the premature infant, in which a membrane composed of proteins…
- Hangover A common nonmedical term for the disagreeable physical effects following excessive consumption of alcohol (or…
- Waardenburg syndrome A genetic disorder that causes deafness, white forelock (a frontal white blaze of hair), a difference of…
- Fanconi pancytopenia See Fanconi anemia
- Runx-1 A protein that is a transcription factor controlling when genes are switched on or off. Runx-1 acts by…
- Vasomotor rhinitis Inflammation of the nose (rhinitis) due to abnormal neuronal (nerve) control of the blood vessels in the…
- Tassinari syndrome Taste belongs to our chemical sensing system, or the chemosenses. The complicated process of tasting begins…
- Dyscrasia Any disease condition, especially in hematology, as in 'blood dyscrasias.' The term 'dyscrasia' was borrowed…
- Sleep restriction therapy A type of therapy in which the number of hours of sleep are restricted. Sleep restriction therapy is used in…
- Morbidity Illness, disease.
- PCP Pneumocystis carinii pneumonia. A parasitic infection of the lungs that is particularly common and…
- Axilla The cavity beneath the junction of the arm and the body, better known as the armpit. The word 'axilla' was…