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).
Atresia, biliary
Congenital absence or closure of the major bile ducts, the ducts that drain bile from the liver. Biliary atresia results in a progressive inflammatory process which may lead to cirrhosis of the liver. The infant looks normal at birth but…
Read the definitionRandom terms
Show more- Alpha particle A tiny mass of material composed of two protons and two neutrons. Alpha particles do not travel very far from…
- Toxic shock See Toxic shock syndrome
- Red cells Short for red blood cells, the oxygen/carbon dioxide carrying cells in blood. Also known acronymically as…
- High blood pressure High blood pressure: Also known as hypertension, high blood pressure is, by definition, a repeatedly elevated…
- Double helix The structure of DNA with the two strands of DNA spiraling about one other. The double helix looks something…
- Shock lung See: ARDS
- Stromal Pertaining to the stroma of an organ. See: Stroma
- FTA-ABS test FTA-ABS stands for fluorescent treponemal antibody absorbed, a blood serum screening test for syphilis…
- Hantavirus pulmonary syndrome Acronym for High Altitude Pulmonary Edema, the accumulation in the lungs of extravascular fluid (fluid…
- Cruciate ligament, anterior The knee joint is surrounded by a joint capsule with ligaments strapping the inside and outside of the joint…
- BIID Body integrity identity disorder
- Mesodermal Pertaining to the mesoderm or to tissues derived from the mesoderm