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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 offers fast and concise information, whether the user is searching for a description of an over-the-counter or prescription medication, a medical abbreviation, a test procedure, a medical research topic, or an illness. Over 45,000 entries from all areas of medicine and healthcare are included.

Find psychology articles, student resources and psychology study guides. Explore psychology definitions and theories. Learn more about the history of psychology from biographies of major thinkers and timelines. Topics covered include personality psychology, social psychology, developmental psychology, and psychology careers.

Connexions is a Content Commons of free, open-licensed educational materials in fields such as music, electrical engineering and psychology.

The American Heritage Science Dictionary Definitions online and free at YourDictionary.com

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

Life Science Glossary with extensive collection of developmental biology, genetic, cell biology, molecular biology, molecular genetic, and biochemistry definitions.

BusinessDictionary.com. Easy-to-use free business glossary with over 20,000 terms. Concise, clear, and comprehensive.