Ice that extends out from the shore and is attached to it.
- The delineation between fast ice and pack ice was indicated by a variety of features.
- In two years, observed densities on pack ice were much greater than those on fast ice; in the other two years, the densities on pack ice and fast ice were similar.
- There are two kinds of sea ice in Antarctica: fast ice and pack ice.
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Syllabification: fast ice
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