Definitions for "Pack ice"
Keywords:  drift, floes, ice, arctic, floating
Ice covering more than half of the visible sea surface.
an area of floating islands of ice that form floes a few feet wide to ice islands miles across. These islands drift in the center of the Arctic Ocean and occasionally drift South as far as Newfoundland.
An area of sea-ice other than fast ice, no matter what form it takes or how it is disposed.