Alternate Definitions for Fern

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Term: Fern
Definition: Old snow which has been transformed into a dense material. Firn is characterized by the fact that: (a) the particles are to some extent joined together, but that (b) the air interstices still communicate with each other. (a) distinguishes it from snow and (b) from ice.
Created 2022.03.08
Last Modified 2023.03.27
Contributed by GCW Glossary