cyclopedia

/ˌsaɪkləˈpiːdiə/
noun
  1. An encyclopedia; a comprehensive reference work containing articles on a wide range of subjects.
    • Before the internet, a cyclopedia was the best source for general knowledge.
    • He consulted a cyclopedia to learn about ancient Egyptian history.
    • The library had a complete set of cyclopedias covering science, art, and literature.
Synonyms
What does "cyclopedia" mean? | whatsthatwordmean | whatsthatwordmean