tundras is tundra's Plural Form

tundra

US [ˈtʌndrə]
UK ['tʌndrə]
  • n.【地】苔原
  • Web冻土带;冻土地带
Plural Form:tundras  
n.
1.
【地】苔原,冻原,冻土带,寒漠