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).
Extrapyramidal system
That part of the nervous system that regulates muscle reflexes
Read the definitionRandom terms
Show more- Eczema, nummular Coin-shaped patches of irritated skin-most common on the arms, back, buttocks, and lower legs that may be…
- Chordoma A form of bone cancer that usually starts in the lower spinal column
- In-law A relative by marriage. An in-law is not a biologic relative. This distinction is of importance in a medical…
- Family practice The medical specialty which provides continuing and comprehensive health care for the individual and family…
- Protean Very variable; easily changing; or continually changing. Protean is not to be confused with protein (a member…
- Echocardiography Echocardiography is a diagnostic test which uses ultrasound waves to make images of the heart chambers…
- Autotransplant The process of transplanting tissue from one part of the body to another in the same individual. The…
- Diffuse cutaneous mastocytosis See: Diffuse mastocytosis
- Breast fibroadenoma A common benign (not malignant) tumor of the breast. Usually called simply a fibroadenoma. For more…
- Syndrome, polyglandular autoimmune (PGA) A genetic autoimmune disease with an extraordinary array of clinical features but characterized most often by…
- Pinna The ear or, to be more precise, the part of the ear that projects like a little wing from the head. In Latin…
- Drusen Tiny yellow or white deposits in the retina of the eye or on the optic nerve head. The presence of drusen is…