Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictiona...

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

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

About YourDictionary.com

The American Academy of Sleep Medicine is the leader in setting standards and promoting excellence in sleep medicine health care, education and resear...

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

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

The leading source for trustworthy and timely health and medical news and information. Providing credible health information, supportive community, an...

Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution -- the la...