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).
Contraction, premature
See: Extrasystole
Read the definitionRandom terms
Show more- Plasticity, brain See Neuroplasticity
- Thrombin A key clot promoter, thrombin is an enzyme that presides over the conversion of a substance called fibrinogen…
- Gy Abbreviation for gray
- Down-regulation See: Downregulation
- Syndecan One of a family of core proteins with sugars attached to the cell surfaces that control or influence tissue…
- Computerized axial tomography (CAT) Cat scanning adds X-ray images with the aid of a computer to generate cross-sectional views anatomy. It can…
- Hepatic vein One of the veins which drains blood from the liver
- Neutrophil A type of white blood cell, specifically a form of granulocyte, filled with neutrally-staining granules, tiny…
- Rossi counter An instrument used to measure the energy deposited by radiation in microscopic sites such as cells. Named for…
- Hypotonic solution A solution with a lower salt concentration than in normal cells of the body and the blood. As opposed to an…
- Naprosyn See: Naproxen
- Carbon dioxide content A measure of the bicarbonate level in the blood. The normal carbon dioxide content may vary somewhat from one…