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).
Magendie, foramen of
An opening from the fourth ventricle, which is one in a system of four communicating cavities called ventricles within the brain that are continuous with the central canal of the spinal cord. The four ventricles consist of the two lateral…
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Show more- Fatty liver of pregnancy, acute Fatty liver of pregnancy, acute: Liver failure in late pregnancy, usually from unknown cause. Acute fatty…
- Afterbirth The placenta + the fetal membranes that are normally expelled from the uterus after the birth of the baby…
- Ablation, endometrial Removal of the lining of the womb. Removing the uterine lining decreases menstrual flow or stops it…
- Spasm, coronary artery See: Coronary artery spasm
- Vanishing lung syndrome A radiological syndrome in which the lungs appear to be disappearing on X-ray. The syndrome is characterized…
- Imprinting, psychological A remarkable genetic phenomenon that occurs in animals, and theoretically humans, in the first hours of life…
- Fragile site A term devised in 1969 by Frederick Hecht to denote a heritable point on a chromosome where gaps and breaks…
- Chronic granulocytic leukemia See: Chronic myelogenous leukemia
- Coccyx The small tail-like bone at the bottom of the spine very near to the anus. The coccyx is made up of 3-5…
- Drug, anti-infective Something capable of acting against infection, by inhibiting the spread of an infectious agent or by killing…
- Hex-A deficiency See: Tay-Sachs disease
- Antegrade Forward-moving. As in blood flow. Sometimes synonymous with anterograde. From the Latin ante- + gradior, to…