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).
Ductus arteriosus
A key arterial shunt (ductus) in fetal life. Before birth, blood pumped from the heart through the pulmonary artery toward the lungs is shunted into the aorta. This arterial shunt is a short vessel called the ductus arteriosus. When the…
Read the definitionRandom terms
Show more- BAC Abbreviation for bacterial artificial chromosome. An artificially created chromosome in which medium-sized…
- Nephrosis, lipoid See: Minimal change disease
- Poultice A soft moist mass about the consistency of cooked porridge that is spread on cloth and applied warm to create…
- COL4A5 The gene for basement membrane type IV collagen alpha-5 chain. COL4A5 is on the X chromosome in band Xq22.3…
- Heatliness A characteristic of certain foods or other substances believed to cause emotional or physical reactions…
- Interstitial radiation Radiation therapy in which a radioactive material is placed directly into a tumor.
- Aneurysm, arterial An aneurysm involving an artery. As opposed to a venous aneurysm or a cardiac aneurysm. An aneurysm is a…
- HIB immunization This immunization is designed to prevent diseases caused by Haemophilus influenzae type B (HIB), a bacteria…
- Total knee replacement Total knee replacement: A surgical procedure in which damaged parts of the knee joint are replaced with…
- Encephalitis, arboviral See: Arboviral encephalitis
- Implantable pacemaker Pacemaker: A device that uses electrical impulses to regulate the heart rhythm or to reproduce that rhythm…
- Germ cell tumor A tumor that arise from a germ cell. These tumors may arise within the gonads -- the ovary and testis. Most…