from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Either of the regions around the poles of the earth that are permanently covered with ice.
- n. A high-altitude icecap.
- n. Astronomy Either of the regions around the poles of Mars that are covered with frozen carbon dioxide and water.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A high-latitude region of a celestial body that is covered by ice.
Sorry, no etymologies found.
It had been suggested that the huts were no longer there: that the radar's eye was unable to distinguish between an ice-sheathed hut and the thousands of ice hummocks that dot the polar cap in winter: and that they had been searching in the wrong area in the first place.
Harvey climbed to the shed to open the bomb's polar cap and re-check the neutron count with the manganese wire.