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).
Niacin deficiency
See: Pellagra
Read the definitionRandom terms
Show more- Inspissate To thicken. Inspissated bile is thickened bile
- Megakaryocyte A giant cell in the bone marrow that is the ancestor of blood platelets.
- Family history of colorectal cancer See: Colon cancer family history
- Shunt, transjugular, intrahepatic, portosystemic A shunt that drains fluid from the cerebral ventricle into the abdomen.
- Axon A long fiber of a nerve cell (a neuron) that acts somewhat like a fiber-optic cable carrying outgoing…
- Traction In medicine, a procedure for manually pulling a part of the body to a beneficial effect. See traction…
- Effacement The thinning of the cervix which occurs before and while it dilates
- Colitis, granulomatous Crohn's disease of the colon (the large intestine). Crohn's disease is a chronic inflammatory disorder…
- Radiation therapy, external Radiation therapy in which the source of radiation is a machine outside the body
- Breast abscess A local accumulation of pus within the breast due to infection. Symptoms may include painful local swelling…
- Genitalia, ambiguous See: Ambiguous genitalia
- Agenesis, sacral Failure of formation of all or part of the sacrum (the lowest section of the spine). Currarino syndrome is a…