encyclopedia noun
also encyclopaedia /ɪnˌsaɪkləˈpiːdijə/ plural encyclopedias also encyclopaedias
also encyclopaedia /ɪnˌsaɪkləˈpiːdijə/ plural encyclopedias also encyclopaedias
Learner's definition of ENCYCLOPEDIA
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: a reference work (such as a book, series of books, Web site, or CD-ROM) that contains information about many different subjects or a lot of information about a particular subject百科全书;(某学科的)专科全书