frostline

[ frawst-lahyn, frost- ]
/ ˈfrɔstˌlaɪn, ˈfrɒst- /

noun

the maximum depth at which soil is frozen.
the lower limit of permafrost.

Nearby words

  1. frosted liver,
  2. frostfish,
  3. frostflower,
  4. frosting,
  5. frosting on the cake,
  6. frostweed,
  7. frostwork,
  8. frosty,
  9. froth,
  10. froth flotation


Origin of frostline

An Americanism dating back to 1860–65; frost + line1

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019