permafrost /pûrˈmə-frost/

Permanently frozen subsoil

• scaberulous
• scabies
• scabious
• scabiouses
• scablands
• scablike
• scabrid
• scabridities
• scabridity
• scabrous
• scabrously
• scabrousness
• scabrousnesses
• scabs
• scad
• scads
• scaff
• scaffie
• scaffies
• scaffolage
• scaffolages
• scaffold
• scaffoldage
• scaffoldages
• scaffolded