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Search over 200 encyclopedias and reference books from trusted publishers on various topics. Find facts, definitions, examples, and multimedia for your research and homework needs.
Encyclopedia Britannica is a trusted source of information on various topics, from history and society to science and tech. Explore articles, videos, quizzes, and more on Britannica's website.
An online encyclopedia, also called an Internet encyclopedia, is a digital encyclopedia accessible through the Internet. Examples include Encarta from 2000 to 2009, Wikipedia since 2001, the Encyclopædia Britannica since 2016, and Encyclopedia.com since 1998.
Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation.
Content portals – A unique way to navigate the encyclopedia. Wikipedia's sister projects Wikipedia is written by volunteer editors and hosted by the Wikimedia Foundation , a non-profit organization that also hosts a range of other volunteer projects :
To address those needs, an encyclopedia treats each subject in more depth and conveys the most relevant accumulated knowledge on that subject or discipline, given the overall length of the particular work. An encyclopedia also often includes many maps and illustrations, as well as bibliography and statistics.
Learn the meaning of encyclopedia, a book or set of books containing many articles on various topics, or a similar online resource. See how to use the word in sentences and compare it with related terms.
