Encyclopaedia

The idea of an Encyclopaedia (or Encyclopedia in American English)

Cyclopedia, cyclopaedia and cyclopedien, sometimes in the past called a Cyclopaedia)

As a general definition of the way the term is used in ESAT, it is perhaps fruitful to consider teacher/librarian Ann Sartori's wonderfully succinct introductory outline in the lesson on "Encyclopedia Definition, History & Examples" on the Study.com website (updated on 02/03/2023):

"Encyclopedias are research tools that collect background information on a variety of topics. In short entries on each topic, the encyclopedia covers enough basic information for the reader to get a sense of the scope and breadth of the topic. The entries in encyclopedias, especially online encyclopedias, often include citations for further research: such as to websites or articles and books on the topic. These can be helpful as a guide for conducting further, more in-depth research."

For more advanced discussions of the encyclopaedia idea, and the concept, nature, forms and versions it, see for example:

https://www.britannica.com/topic/encyclopaedia

http://en.wikipedia.org/wiki/Encyclopedia

H.G. Wells. 1936. "The Idea of a World Encyclopedia." Nature, 138, no. 3500 (28 November 1936): 917-24.[1]

C. Van Doren. 1962. "The Idea of an Encyclopedia". In: American Behavioral Scientist, Volume 6, Issue 1.[2]

Katharine Schopflin. 2014. "What do we Think an Encyclopaedia is?" Culture Unbound. Journal of Current Cultural Research 6(3):483-503 (DOI: 10.3384/cu.2000.1525.146483)[3]

Patrick C. Fleming. 2016. "The Idea of an Encyclopedia". In. Pedagogy (Duke University Press) Volume 16, Issue 3, October 2016: pp. 569-575[4]