Definition: Encyclopaedia or encyclopedic refers to a broad, comprehensive collection of information, typically covering many different disciplines. Detailed definition: 1. A comprehensive or extensive text containing a vast number of articles, books, or other works that cover an entire field of knowledge. 2. An encyclopedia that contains information on numerous topics, including but not limited to history, geography, language, and philosophy. 3. The act of compiling extensive information into a book or series for the benefit of others. 4. A reference work containing detailed explanations and references, often used in professional contexts like law, medicine, science, etc. 5. An educational resource that is comprehensive enough to be useful for all levels of education, including elementary school to university level courses. 6. The act of compiling a large amount of information into one source, typically a book or online encyclopedia.