permafrost

(redirected from Widespread permafrost zone)
Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to Widespread permafrost zone: Sporadic permafrost zone, Continuous permafrost

permafrost

permanently frozen ground on which only a thin layer thaws in the summer, as in the high Arctic and Antarctic.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
Mentioned in ?