Last Updated：2025/11/21
(physics) The number of neutrons or protons in nuclei which are required to fill the major quantum shells, and thus produce exceptionally stable nuclei: 2, 8, 20, 28, 50, 82 and 126.
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magic number
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Source Word
magic number
Noun
broadly
Japanese Meaning
（物理学）主要な量子殻を満たすために必要な中性子または陽子の数。具体的には、2、8、20、28、50、82、126が該当し、これらの数を持つ原子核は特に安定している。
Sense（1）
Sense（2）
The
sum
of
one
and
the
wins
by
one
team
and
losses
by
an
opponent
necessary
for
the
team
to
ensure
the
opponent
cannot
catch
it
in
the
standings
by
the
end
of
the
regular
season.
In
Major
League
Baseball,
with
a
regular
season
of
162
games,
the
magic
number
M
is
calculated
as
M
=
163
-
W₁
-
L₂,
in
which
W₁
is
the
leading
team's
current
win
total,
and
L₂
is
the
opponent's
current
loss
total.
A
magic
number
of
0
indicates
that
the
trailing
team
cannot
catch
the
leading
team.
Sense（4）
Sense（5）
（ plural ）
