[ ɛnˌsʌɪklə(ʊ)'pi:dɪə , ɪn- ]
(also encyclopaedia )
■ noun a book or set of books giving information on many subjects or on many aspects of one subject, typically arranged alphabetically.
Origin
C16: mod. L., from pseudo-Gk enkuklopaideia for enkuklios paideia 'all-round education'.