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).
Enzyme defect
A disorder resulting from a deficiency (or functional abnormality) of an enzyme. In 1902 Archibald Garrod first attributed a disease to an enzyme defect: an inborn error of metabolism. Today, newborns are routinely screened for certain…
Read the definitionRandom terms
Show more- Pendred syndrome Pendred syndrome: A genetic disease characterized by congenital deafness, abnormality of the bony labyrinth…
- Drain, Jackson Pratt See: JP drain
- PCA Commonly used abbreviation for patient-controlled analgesia. Analgesia simply means relief of pain. PCA is a…
- Oxycodone Oxycodone: Oxycodone is the active ingredient in OxyContin. Oxycodone is an opioid, a close relative of…
- Hybridoma A cell hybrid resulting from the fusion of a cancer cell and a normal lymphocyte (a type of white blood…
- Dermopathy Any disease of the skin. Synonymous with dermatopathy.
- Retrospective study Behind the sternum (the breastbone).
- Aneurysm, thoracic An aneurysm situated within the thorax (chest). See: Aneurysm, aortic. An aneurysm is a localized widening…
- Purpura, allergic See: Schonlein-Henoch purpura
- Courier In the drug trade, someone who internally conceals and transports an illicit drug. Also called a body packer…
- Epidermal growth factor receptor EGFR
- AST 1. Aspartate aminotransferase, an enzyme normally present in liver and heart cells. AST is released into…