frost line (English, noun)
expansion: frost line (plural frost lines)
Senses:
glosses: The depth to which the water present in the soil is expected to freeze in winter.
glosses: The depth to which the water present in the soil is actually frozen in a given place at a given point in time.
topics: astrophysics
glosses: In a solar system, the distance from the protosun beyond which hydrogen-containing gas compounds freeze.
Forms:
form: frost lines
tags: plural
form: frostline
tags: alternative