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Noun: permafrost  'pur-mu,fróst
  1. Ground that is permanently frozen

Derived forms: permafrosts

Type of: ground, land, soil

Encyclopedia: Permafrost

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perkily
perkiness
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perlite
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perm
Perm
permaculture
permafrost
permalink
Permalloy
permanence
permanency
permanent
permanent injunction
permanent magnet
permanent press
permanent tooth
permanent wave