polar cap

Noun

(planetology) A high-latitude region of a celestial body that is covered by ice.

Japanese Meaning

天体の極地に存在し、氷で覆われた領域（惑星学の用語）

The polar cap on Mars shrinks each summer, revealing underlying layers of dust and ice.

火星の極冠は夏になると縮小し、塵と氷の下層が露出することがある。

Sense（1）

(planetology) A high-latitude region of a celestial body that is covered by ice.

Earth's polar caps may melt if global warming continues.

polar caps

（ plural ）