Definition of tundra noun from the Oxford Advanced Learner's Dictionary

 

tundra

 noun
noun
BrE BrE//ˈtʌndrə//
 
; NAmE NAmE//ˈtʌndrə//
 
[uncountable] Other geographic regions
 
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the large flat Arctic regions of northern Europe, Asia and N America where no trees grow and where the soil below the surface of the ground is always frozen See related entries: Other geographic regions Word Origin late 16th cent.: from Lappish. Lappish is the language of the indigenous people of the extreme north of Scandinavia.
See the Oxford Advanced American Dictionary entry: tundra