Search the Dictionary:

 
A-B-C-D-E-F-G-H-I-J-K-L-M-N-O-P-Q-R-S-T-U-V-W-X-Y-Z
 
ice cap
The Arctic ice cap reached its smallest extent ever in 2007 (above, top), about 50 percent of its size in the 1950s. The image beneath it shows the ice cap’s average area in 1979-1981. (NASA images)

ice cap:

A covering of ice over a large area of land such as Antarctica. Ice caps are large glaciers that flow outward in all directions from their centers. Also called an ice sheet.