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).
Excessive daytime sleepiness
A neurological disorder in which there is a sudden recurrent uncontrollable compulsion to sleep. Excessive daytime sleepiness is also known as narcolepsy. The condition is often associated with: > >Cataplexy -- a sudden loss of muscle tone…
Read the definitionRandom terms
Show more- Keratoconjunctivitis Inflammation of the eye involving both the cornea and the conjunctiva. Keratoconjunctivitis can be due to…
- Ectodermal dysplasia A genetic disorder in which there is abnormal development of the skin and associated structures (the hair…
- Sweat gland tumor A benign (harmless) skin tumor called a syringoma that derives from cells related to sweat glands. (These…
- Amyloidosis, primary Amyloidosis, primary: A disorder of plasma cells (special white blood cells that produce antibodies), this is…
- Lattice dystrophy A form of hereditary corneal dystrophy in which there is an accumulation of amyloid deposits, or abnormal…
- Schistosoma haematobium A species of trematode worm that parasitizes humans and causes urinary tract disease. See Schistosomiasis
- Raised hemidiaphragm See: Elevated hemidiaphragm.
- Deficiency, glucose-6-phosphate dehydrogenase D): Deficiency of G6PD is the commonest disease-causing enzyme defect in humans affecting an estimated 400…
- Watchful waiting Closely monitoring a patient's condition but withholding therapy until the sign and symptom appear or change…
- Bacteriocidal The science and study of bacteria and their relation to medicine and to other areas such as agriculture…
- Cushing syndrome Cushing syndrome: The constellation of symptoms and signs caused by an excess of cortisol hormone. Cushing…
- Oxycodone Oxycodone: Oxycodone is the active ingredient in OxyContin. Oxycodone is an opioid, a close relative of…