English Dictionary

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。

We stood on the bank and watched an ice circle slowly revolve in the river, its rim being shaved away by the eddy until it became a smooth, floating disk.

私たちは川岸に立ち、渦に捕らえられてゆっくり回転しながら外縁が削り取られていく回転する氷の円盤が川に浮かんでいるのを見た。

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.

ice circles （ plural ）