permafrost /pûrˈmə-frost/

Permanently frozen subsoil

• mineral waters
• mineral wax
• mineral waxes
• mineral well
• mineral wool
• miners
• miner's anaemia
• miner's inch
• miner's lamp
• miner's phthisis
• miner's right
• miner's worm
• Minerva
• Minervois
• mines
• mineshaft
• mineshafts
• minestone
• minestones
• minestrone
• minestrones
• minesweeper
• minesweepers
• minesweeping
• mine-thrower