a large area of floating ice formed over a period of many years and consisting of pieces of ice driven together by wind, current, etc.
a large area of floating ice, usually occurring in polar seas, consisting of separate pieces that have become massed together Also called ice pack
The floating sea-ice cover of the polar regions. Driven by winds and ocean currents, pack ice is a mixture of ice fragments of varying size and age that are squeezed together and cover the sea surface with little or no open water. At maximum expansion during the winter, pack ice covers about five percent of Arctic waters and about eight percent of Antarctic waters.
noun A package liquor store (1980s+)
noun 1. a box in which goods are packed for transport or storage.
- Packing density
noun 1. (computing) a measure of the amount of data that can be held by unit length of a storage medium, such as magnetic tape
noun 1. Physics. a measure of the stability of an atomic nucleus, equal to 10 4 multiplied by the mass defect and divided by the mass number. noun 1. a measure of the stability of a nucleus, equal to the difference between its mass in amu and its mass number, divided by the mass number […]