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

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...

International publisher of professional health information for physicians, nurses, specialized clinicians & students. Medical & nursing charts, journals, and pda software.

Browse, buy and learn at wiley.com, the online home of John Wiley & Sons, Inc., publisher of award-winning journals, encyclopedias, books, and online products and services.

International führender Wissenschaftsverlag - Wissenschaft, Technik, Medizin, Architektur, Wirtschaft und Verkehr - Zeitschriften, Bücher und EContent.

Biology Online, information in the life sciences in the form of tutorials, references and an online dictionary of biology terms.

The University of Michigan Health System is known for excellence in patient care, medical education and pioneering scientific research that improves the health of individuals, populations and communities across the globe.

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