MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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).
Causes of cancer
Cancer is a group of more than 100 different diseases. Benign tumors are not cancer; malignant tumors are cancer. Most cancers are named for the type of cell or the organ in which they begin. When cancer spreads (metastasizes), the new…
Read the definitionRandom terms
Show more- Weighing, underwater See: Underwater weighing
- Syndrome, Cornelia de Lange See: de Lange syndrome
- Skull, hair-on-end Thin fine linear extensions radiating out from the skull that look on an X-ray like hair standing 'on-end'…
- Pancreatic alpha cell A type of cell in the pancreas (the organ of the digestive system located behind the stomach). Within the…
- Delirium tremens A neurological symptom of alcohol withdrawal seen in chronic alcoholism, with includes symptoms of psychosis…
- Blindness, night Impaired vision in dim light and in the dark, due to impaired function of specific vision cells (namely, the…
- AFO (ankle-foot orthosis) Ankle-foot orthosis
- Emerging infectious disease An infectious disease that has newly appeared in a population or that has been known for some time but is…
- Postprandial After mealtime. A postprandial rise in the blood glucose level is one that occurs after eating. Most medical…
- Autoimmune polyendocrinopathy syndrome A genetic autoimmune disease with an extraordinary array of clinical features but characterized most often by…
- Nonblinded study A clinical trial or other experiment in which the researchers know what treatments are being given to each…
- Sickle cell disease A genetic blood disease due to the presence of an abnormal form of hemoglobin, namely hemoglobin S…