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).
Mitral insufficiency
Incomplete closure of the mitral valve resulting in the backflow of blood from the left ventricle to the left atrium of the heart.
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- Nephron A key unit, both anatomically and functionally, of the kidney.
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- Abnormal Not normal. Deviating from the usual structure, position, condition, or behavior. In referring to a growth…
- Syndrome, Guillain-Barre See: Guillain-Barre syndrome
- Modafinil Modafinil: An oral drug first approved by the FDA in 1998 for the treatment of narcolepsy, a condition in…
- Campylobacter jejuni A bacterium that typically infects the bowels. Now the leading cause of bacterial food poisoning…