permafrost /pûrˈmə-frost/

Permanently frozen subsoil

• bag of tricks
• bagpipe
• bagpiper
• bagpipers
• bagpipes
• bagpiping
• bagpipings
• BAgr
• BAgric
• bags
• bags I
• baguette
• baguettes
• baguio
• baguios
• bagwash
• bagwashes
• bagwig
• bagwigs
• bah
• bahada
• bahadas
• Bahadur
• Baha'i
• Bahai