frost line

English dictionary entry

Meanings

noun
  1. The depth to which the water present in the soil is expected to freeze in winter.
  2. The depth to which the water present in the soil is actually frozen in a given place at a given point in time.
  3. In a solar system, the distance from the protosun beyond which hydrogen-containing gas compounds freeze.

Word forms

frost line frost lines frostline

Synonyms

frost depth freezing depth frost front snow line ice line
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