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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Polysomnography
Continuous recording of specific physiologic variables during sleep. Polysomnography typically records brain wave changes (electroencephalogram), eye movements (electrooculogram), muscle tone (electromyogram), respiration…
Read the definitionRandom terms
Show more- Reading retardation Reading retardation means impaired ability to read. Reading retardation is an impairment that may, for…
- Shock syndrome, dengue A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal pain, hemorrhage…
- Hughes Investigator See: Howard Hughes Medical Institute
- Acquired immunodeficiency syndrome AIDS. AIDS is a disease due to infection with the human immunodeficiency virus (HIV). Also referred to as…
- Disease, mitochondrial >An eye disease called Leber's hereditary optic atrophy; >A type of epilepsy called MERRF which stands for…
- Recurrence The return of a sign, symptom or disease after a remission. The reappearance of cancer cells at the same site…
- Quickening The moment during pregnancy when the baby is first felt to move
- Shock, anaphylactic A life-threatening allergic reaction characterized by a swelling of body tissues including the throat…
- Heroin addiction Physical addiction to heroin, often with concurrent use of other opiates when heroin itself is not available…
- Parasitosis Infestation or infection with parasites. See also: Delusional parasitosis
- Hemorrhagic Pertaining to bleeding or the abnormal flow of blood. The patient may have an internal hemorrhagic problem…
- Pappataci fever See: Sandfly fever