最終更新日：2025/12/04
A phenomenon that occurs on rivers during winter, where floating ice caught in an eddying flow will rotate around, knocking off its distant edges, forming a floating revolving circular disk, slowing turning under the influence of the underlying vortex current; when the temperature conditions are not too warm, leading to ice breakup and fragility, and not too cool, freezing over the entire surface.
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ice circle
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元となった辞書の項目
ice circle
名詞
A
phenomenon
that
occurs
on
rivers
during
winter,
where
floating
ice
caught
in
an
eddying
flow
will
rotate
around,
knocking
off
its
distant
edges,
forming
a
floating
revolving
circular
disk,
slowing
turning
under
the
influence
of
the
underlying
vortex
current;
when
the
temperature
conditions
are
not
too
warm,
leading
to
ice
breakup
and
fragility,
and
not
too
cool,
freezing
over
the
entire
surface.
日本語の意味
冬の河川に見られる現象で、渦流に乗る浮氷が回転しながら peripheral（周縁部）が削られ、円盤状になる現象。
意味（1）
A
phenomenon
that
occurs
on
rivers
during
winter,
where
floating
ice
caught
in
an
eddying
flow
will
rotate
around,
knocking
off
its
distant
edges,
forming
a
floating
revolving
circular
disk,
slowing
turning
under
the
influence
of
the
underlying
vortex
current;
when
the
temperature
conditions
are
not
too
warm,
leading
to
ice
breakup
and
fragility,
and
not
too
cool,
freezing
over
the
entire
surface.
（ plural ）
