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Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.

Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus, Columbia e...

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

Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear audio pronunciations.

Health information for consumers on first aid for medical emergencies, accidents and injuries, symptoms and treatment of disease and health conditions, and physical and the emotional well-being that contribute to general wellness.

The largest and most trusted free online thesaurus. Quickly find accurate and up-to-date synonyms, antonyms, and related words at Thesaurus.com. Synonym dictionary, antonym dictionary, words synonyms.

Lab Tests Online offers noncommercial patient education on blood, urine, and other lab tests to help health care consumers better manage their care.

Mayo Clinic — Comprehensive medical diagnosis and treatment; locations and services; request an appointment.

The leading source for trustworthy and timely health and medical news and information. Providing credible health information, supportive community, and educational services by blending award-winning expertise in content, community services, expert co...

Read doctor-produced health and medical information written for you to make informed decisions about your health concerns.

The New England Journal of Medicine (NEJM) is a weekly general medical journal that publishes new medical research and review articles, and editorial opinion on a wide variety of topics of importance to biomedical science and clinical practice.