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

Trusted medical information to encourage healthy living. Enjoy free health tools and view detailed doctor-reviewed information about diseases, medical symptoms, treatments, drugs, and nutrition.

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

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

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.

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...

symptom checker allowing research of the causes of one or many symptoms in an extensive knowledge base, including common and rare causes.

Vocabulary.com helps you learn new words, play games that improve your vocabulary, and explore language.

The Free Online English Dictionary from Macmillan Publishers.

Provides teachings about Carl Jung theories and methods of exploration of the unconscious mind. Includes online courses.

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