Frostbelt

or Frost Belt

[ frawst-belt, frost- ]
/ ˈfrɔstˌbɛlt, ˈfrɒst- /

noun (often lowercase)

Origin of Frostbelt

First recorded in 1975–80; frost + belt
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019