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.
- 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).
Cirrhosis and gray matter degeneration
Bral gray matter, Alpers: A progressive disease of the nervous system characterized by spasticity (tightness), myoclonus and dementia and by liver problems with jaundice and cirrhosis. This disorder, first described by Alpers in 1931 as…
Read the definitionRandom terms
Show more- Normotensive Having normal blood pressure. See also: Hypertensive; Hypotensive
- Drug resistance The ability of bacteria and other microorganisms to withstand a drug to which they were once sensitive and…
- Cranial dystonia A term used to describe dystonia that affects the muscles of the head, face, and neck. Oromandibular dystonia…
- PVNS Pigmented villonodular synovitis
- System, cardiac conduction The electrical conduction system that controls the heart rate. This system generates electrical impulses and…
- Anal fissure Anal fissure: Common tear in the anal canal. Anal fissure is a common cause of red blood in the stool.
- Anatomy, Gray's See: Gray's Anatomy
- Somatization The process by which psychologic distress is expressed as physical symptoms. Somatization is an unconscious…
- Heel stick A procedure in which a newborn baby's heel is pricked and then a small amount of the blood is collected…
- Cystoscopy A procedure in which the doctor inserts a lighted instrument called a cystoscope into the urethra (the tube…
- Major histocompatibility complex See: Permanent makeup.
- Photodynamic therapy Photodynamic therapy: A form of cancer treatment using an photosensitizing agent administered intravenously…