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).
Sentinel lymph node
The first lymph node ('gland') to receive lymphatic drainage from a tumor. Which lymph node is the sentinel node in a given case is determined by injecting around the tumor a tracer substance that will travel through the lymphatic system…
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Show more- Cholera genome The genome of the bacterium called Vibrio cholerae that causes cholera. This genome contains over 4 million…
- Hemolytic anemia Anemia due to the destruction (rather than underproduction) of red blood cells.
- Staphylococcus A group of bacteria that cause a multitude of diseases. Under a microscope, Staphylococcus bacteria are round…
- Vertebra, second cervical The second cervical vertebra is called the axis. It is so-named because the uppermost cervical vertebra…
- Health Care Finance Administration See: HCFA
- Patellar tendonopathy See: Patellar tendonitis
- Anastrozole An oral antiestrogen. Anastrozole inhibits the enzyme aromatase in the adrenal glands that produces the…
- NBIA Neurodegeneration with brain iron accumulation. See: Hallervorden-Spatz disease
- Superior A large vein that receives blood from the head, neck, upper extremities, and thorax and delivers it to the…
- Pecs Slang for the pectoral muscles, muscles of the 'anterior chest' (the front of the chest). The Latin 'pectus'…
- Yawn Involuntary opening of the mouth, often caused by suggestion. Yawning is characterized by breathing first…
- Fuchs endothelial corneal dystrophy See: Corneal dystrophy, Fuchs endothelial