Encyclopedia Galactica

== English == === Alternative forms === Encyclopaedia Galactica, Encyclopædia Galactica === Etymology === Blend of Encyclopedia Britannica (“Encyclopaedia Britannica, Encyclopædia Britannica”) +‎ galactic. === Proper noun === Encyclopedia Galactica (science fiction) A compendium of all knowledge, or most of the important knowledge, an encyclopedia for a galaxy-spanning civilization. ==== Usage notes ==== This term is used in many works by many authors, prominently in Douglas Adams' Hitch Hiker's Guide to the Galaxy series and Isaac Asimov's Foundation series.