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Online Medical Dictionary and glossary with medical definitions

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The National Library of Medicine (NLM), on the campus of NIH in Bethesda, Maryland, is the world

The homepage for Johns Hopkins Medicine. The organization brings together the faculty, physicians, and scientists of the School of Medicine with professionals of the Johns Hopkins Health System.

Medical Dictionary is intended for use by healthcare consumers, students, and professionals as well as anyone who wants to keep up with the burgeoning array of terminology found in today’s medical news. By staying clear of jargon, the dictionary o...