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).
Thoracic duct
A vascular structure which recirculates lymph into the blood stream. It begins in the abdomen and tracks alongside the aorta and esophagus to eventually join with the left brachiocephalic vein.
Read the definitionRandom terms
Show more- Vaccination, infectious hepatitis See Immunization, hepatitis A.
- Egg Ovum (plural: ova).
- Down syndrome features Children with Down syndrome have multiple malformations and mental impairment due to the presence of extra…
- Raw egg Uncooked, unpasteurized egg. Salmonella enteritidis, a harmful bacterium, can be transmitted from infected…
- Normal tension glaucoma See: Glaucoma, normal tension
- Abortion In medicine, an abortion is the premature exit of the products of conception (the fetus, fetal membranes, and…
- Parasitic worm A worm classified as a parasite. (A parasite is a disease-causing organism that lives on or in a human or…
- Vaccination, DT DT (diphtheria and tetanus) vaccine does not protect from pertussis and is usually reserved for individuals…
- CNP Copy number polymorphism
- Contrast nephropathy A form of acute renal failure that starts soon after administration of contrast media (dye) for X-rays. The…
- Syndrome, Gareis-Mason See Syndrome, MASA
- Materterine See: Materteral