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).
Radiotherapy, stereotactic
Radiation therapy in which a number of precisely aimed beams of ionizing radiation coming from different directions meet at a specific point, delivering the radiation treatment to that spot
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- Medical physics The science of human health and radiation exposure. Medical physics, also called health physics, is devoted…
- Popliteal pterygium syndrome An inherited condition with a web behind the knee. (A pterygium is a winglike triangular membrane). The…
- Radical neck dissection A surgical procedure involving the removal of a tumor from the neck with an additional margin of normal…
- Sclera The tough white outer coat over the eyeball that covers approximately the posterior five-sixths of its…
- Neurotoxin A substance that causes damage to nerves or nerve tissue. For example, lead is a neurotoxin
- Pyarthrosis Infectious arthritis. Pyarthrosis is typically caused by a bacterial infection in the joint. Diagnosis is…
- Oogenesis The process of egg formation. The second 'o' in oogenesis is pronounced separately from the first…
- Patient-controlled analgesia See: PCA
- Wheat weevil See: Granary weevil
- Line, germ A sequence of cells, each descended from earlier cells in the lineage, which will develop into new sperm and…
- Sever condition Sever condition: Inflammation of the growth plate of the calcaneus, the bone at the back of the heel. The…