最終更新日：2025/11/20
A system of numerals represented by letters of the Greek alphabet. These are used for special purposes, where in English Roman numerals might be used. The numerals are formed by the addition of a mark to the upper or lower case letter, i.e. Γ΄, δ΄, θ΄. In addition to the usual Greek letters three additional symbols are used: stigma (ϛ), koppa (ϟ) and sampi (ϡ); stigma (Ϛ or ϛ) may also be represented by ΣΤ΄ or στ΄.
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Greek numerals
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元となった辞書の項目
Greek numerals
名詞
複数形
通例複数形
A
system
of
numerals
represented
by
letters
of
the
Greek
alphabet.
These
are
used
for
special
purposes,
where
in
English
Roman
numerals
might
be
used.
The
numerals
are
formed
by
the
addition
of
a
mark
to
the
upper
or
lower
case
letter,
i.e.
Γ΄,
δ΄,
θ΄.
In
addition
to
the
usual
Greek
letters
three
additional
symbols
are
used:
stigma
(ϛ),
koppa
(ϟ)
and
sampi
(ϡ);
stigma
(Ϛ
or
ϛ)
may
also
be
represented
by
ΣΤ΄
or
στ΄.
日本語の意味
「ギリシャ数字」とは、ギリシャ文字を用いて表される数字体系のことで、特別な目的のために利用される。具体的には、ギリシャ文字（大文字または小文字）の上または下に記号を付加して表記される（例：Γ΄、δ΄、θ΄）。さらに、通常のギリシャ文字に加えて、スティグマ（ϛまたはϚ/στ΄）、コッパ（ϟ）、サンピ（ϡ）といった追加シンボルが用いられる場合がある。
意味（1）
A
system
of
numerals
represented
by
letters
of
the
Greek
alphabet.
These
are
used
for
special
purposes,
where
in
English
Roman
numerals
might
be
used.
The
numerals
are
formed
by
the
addition
of
a
mark
to
the
upper
or
lower
case
letter,
i.e.
Γ΄,
δ΄,
θ΄.
In
addition
to
the
usual
Greek
letters
three
additional
symbols
are
used:
stigma
(ϛ),
koppa
(ϟ)
and
sampi
(ϡ);
stigma
(Ϛ
or
ϛ)
may
also
be
represented
by
ΣΤ΄
or
στ΄.
（ singular ）
