Medical Dictionary

Read About Symptoms, Causes, Treatment and Prevention for Over 950 Diseases, Illnesses, Health Conditions and Wellness Issues

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Medical Dictionary Definitions A - Z

The medical dictionary covers terminology of over 12,000 healthcare words including medical terms, diseases, conditions, diagnostic test and procedures. These definitions are provided by National Library of Medicine (NLM), National Institutes of Health (NIH), and the Department of Health and Human Services (HHS). To find a term in the dictionary, begin by clicking on a letter in the A-Z list or type your medical word in the search box and click the search button.

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