Last Updated：2025/12/06
(science fiction) A compendium of all knowledge, or most of the important knowledge, an encyclopedia for a galaxy-spanning civilization. A science-fictional analogue of the Encyclopedia Britannica. This term is used in many works by many authors, and prominently found in Douglas Adams' Hitch Hiker's Guide to the Galaxy series and Isaac Asimov's Foundation series.
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Encyclopedia Galactica
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Source Word
Encyclopedia Galactica
Proper noun
(science
fiction)
A
compendium
of
all
knowledge,
or
most
of
the
important
knowledge,
an
encyclopedia
for
a
galaxy-spanning
civilization.
A
science-fictional
analogue
of
the
Encyclopedia
Britannica.
This
term
is
used
in
many
works
by
many
authors,
and
prominently
found
in
Douglas
Adams'
Hitch
Hiker's
Guide
to
the
Galaxy
series
and
Isaac
Asimov's
Foundation
series.
Japanese Meaning
銀河全体の、または主要な知識が網羅された百科事典 / 銀河規模の文明向けに編纂された知識の大全 / SF作品における、銀河系あるいは銀河間規模の文明向けの百科事典概念
Sense（1）
(science
fiction)
A
compendium
of
all
knowledge,
or
most
of
the
important
knowledge,
an
encyclopedia
for
a
galaxy-spanning
civilization.
A
science-fictional
analogue
of
the
Encyclopedia
Britannica.
This
term
is
used
in
many
works
by
many
authors,
and
prominently
found
in
Douglas
Adams'
Hitch
Hiker's
Guide
to
the
Galaxy
series
and
Isaac
Asimov's
Foundation
series.
