MedicalVocabulary.org

Medical vocabulary with 16,436 clear, complete and reliable definitions.

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16,436 medical terms defined

20 years online

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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).

Featured term

Case-to-infection proportion

See: Case-to-infection ratio

Read the definition