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).
Alagille syndrome
Also known as arteriohepatic dysplasia, this is a genetic disorder characterized by jaundice in the newborn period, liver disease with cholestasis, peripheral pulmonic stenosis and unusual face. Children with Alagille syndrome usually…
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Show more- Xanthopsia A form of chromatopsia, a visual defect in which objects appear as if they have been overpainted with an…
- Bladder catheter, indwelling A flexible plastic tube (a catheter) inserted into the bladder that remains ('dwells') there to provide…
- Subarachnoid hemorrhage Bleeding within the head into the space between two membranes that surround the brain. The bleeding is…
- APC (immunology) Antigen-presenting cell, a cell that can 'present' antigen in a form that T cells can recognize it. Among the…
- ATG Antithymocyte globulin
- Agranulocytosis A marked decrease in the number of granulocytes. Granulocytes are a type of white blood cell filled with…
- Lymphedema A common chronic, debilitating condition in which excess fluid called lymph collects in tissues and causes…
- Chronic insomnia See Insomnia, chronic
- Fluorouracil A much-used anticancer drug that belongs to the family of drugs called antimetabolites. Full name…
- Artery, central retinal The blood vessel that carries blood into the eye and supplies nutrition to the retina. The counterpart to the…
- Seventh cranial nerve The seventh cranial nerve is the facial nerve, a mixed nerve that has fibers both going out and coming in…
- Bayes theorem A probability principle set forth by the English mathematician Thomas Bayes (1702-1761). Bayes' theorem is of…