n. 1. (Placename) a republic in West Africa, on the Atlantic: established as the colony of French Guinea in 1890 and became an independent republic in 1958. Official language: French. Religion: Muslim majority and animist.
Definition of ice pack for English Language Learners. : 1  a container or bag filled with ice that is used to cool part of your body. : 2  a large area of ice on the ocean formed from pieces and sheets of ice that have been pushed together by wind and waves.
The gel-pack or water is placed in a freezer or other cooling system to lower its temperature, and then it is used to keep other items cool. Ice packs are effectively a device for storing cooling capacity.hese types of ice packs are stored at room temperature rather than needing to be physically cooled before use. When one breaks a tube inside the pack, two chemicals mix or react and absorb enough energy to produce a cooling effect.