Last Updated：2025/11/29
(telecommunications, historical) A character code represented by two sets of six lit torches, used to send messages character by character, in a two point visual fire telegraph. The character code is generated by encoding characters in a grid, where each character generates two numbers, uniquely representing each character as a pair of numbers.
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Polybius square
Edit Histories（0）
Source Word
Polybius square
Noun
historical
(telecommunications,
historical)
A
character
code
represented
by
two
sets
of
six
lit
torches,
used
to
send
messages
character
by
character,
in
a
two
point
visual
fire
telegraph.
The
character
code
is
generated
by
encoding
characters
in
a
grid,
where
each
character
generates
two
numbers,
uniquely
representing
each
character
as
a
pair
of
numbers.
Japanese Meaning
ポリビウス正方形：歴史的な通信方式に用いられた暗号盤の一形式で、格子状に配置された文字が各々2つの数字の組み合わせ（例えば、2組の6本の灯火などによる視覚的表示）で表現され、一文字ずつ送信される仕組みを指す。
Sense（1）
(telecommunications,
historical)
A
character
code
represented
by
two
sets
of
six
lit
torches,
used
to
send
messages
character
by
character,
in
a
two
point
visual
fire
telegraph.
The
character
code
is
generated
by
encoding
characters
in
a
grid,
where
each
character
generates
two
numbers,
uniquely
representing
each
character
as
a
pair
of
numbers.
Sense（2）
（ plural ）
