MedicalWords.org is a free online medical pronunciation dictionary designed to help patients, students, and anyone curious about healthcare terminology say and understand medical words with confidence. It covers more than 11,239 terms across 12 categories, including conditions and diseases, anatomy, procedures, diagnostic tests, symptoms, equipment, and medications. Visitors can browse by medical specialty, from cardiology and neurology to dermatology, oncology, and psychiatry, or search for a specific term.

Each entry provides a syllable-by-syllable phonetic spelling, with the stressed syllable shown in capital letters, an audio pronunciation, and a plain-English definition. Definitions are primarily sourced from MedlinePlus, the consumer health service of the U.S. National Library of Medicine; other established medical dictionaries are used when MedlinePlus coverage is unavailable. The site also features pronunciation guides for brand-name medications and educational information to support understanding of medical terminology. MedicalWords.org requires no account and has no paywalls or premium tiers; it is supported by advertising. Its content is intended for education and general reference, not medical advice or treatment guidance.