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).
Amniotic sac
Popularly and more commonly known as the bag of waters. See: Bag of waters
Read the definitionRandom terms
Show more- Optic cup The white, cup-like area in the center of the optic disc. The optic disk is the circular area at the back of…
- Node Literally a knot, a node is a collection of tissue. For example a lymph node, is a collection of lymphoid…
- Bone, heel A somewhat rectangular bone at the back of the foot. The words 'calcaneus' and 'calcium' are related…
- Aorta The largest artery in the body, the aorta arises from the left ventricle of the heart, goes up (ascends) a…
- Gerstmann-Straussler-Scheinker disease See: Gerstmann-Sträussler-Scheinker syndrome
- National Institute for Occupational Safety Health: Known for short as NIOSH, a US Federal agency responsible for conducting research and making…
- Islets of Langerhans Known as the insulin-producing tissue, the islets of Langerhans do more than that. They are groups of…
- SA node The SA node (SA stands for sinoatrial) is one of the major elements in the cardiac conduction system, the…
- Trisomy 18 syndrome There are three instead of the normal two chromosomes #18. Children with this condition have multiple…
- DCIS See Pendred syndrome.
- Hypertension, pulmonary See: Pulmonary hypertension
- Natural family planning Also known as fertility awareness, periodic abstinence and the rhythm method, this approach entails not…