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).
National Institutes of Health (NIH)
The clinical research facility of the National Institutes of Health (NIH) in the U.S. As a national resource, the CC's mission is to "provide the patient care, services, and environment needed to initiate and support the highest quality…
Read the definitionRandom terms
Show more- AAMC (Ass Am Medical Colleges) The American Association of Medical Colleges, a nonprofit association of the 125 accredited U.S. medical…
- IMRT Intensity modulated radiation therapy
- Metastasize The spread from one part of the body to another. When cancer cells metastasize and cause secondary tumors…
- Seroconversion Seroconversion: The development of detectable antibodies in the blood directed against an infectious agent…
- Fever, undulant An infectious disease due to the bacteria Brucella that characteristically causes rising and falling fevers…
- Gliadin A glycoprotein (a carbohydrate plus a protein) within gluten. Gliadin is found in wheat and some other…
- Vitamin B -- niacin Deficiency of niacin, one of the B-complex vitamins, causes pellagra. See: Pellagra
- Hemodialysis Hemodialysis: A medical procedure that uses a special machine (a dialysis machine) to filter waste products…
- Fraternal twin Twin: A twin who have shared a common uterine environment with its sibling. Fraternal twins are due to the…
- Fluoridation, water See: Water fluoridation
- Aura A premonition. There is often an aura before a migraine or a grand mal seizure. The aura, a symptom of brain…
- Alopecia areata Alopecia areata: A patchy baldness which typically begins with patchy hair loss on the scalp and sometimes…