Britannica

Definition
The Encyclopædia Britannica (Latin for "British Encyclopædia") is a general knowledge English-language encyclopædia. It is published by Encyclopædia Britannica, Inc.; the company has existed since the 18th century, although it has changed ownership various times through the centuries. The encyclopaedia is maintained by about 100 full-time editors and more than 4,000 contributors. The 2010 version of the 15th edition, which spans 32 volumes[1] and 32,640 pages, was the last printed edition. Since 2016, it has been published exclusively as an online encyclopaedia.