Definition of tundra
: a level or rolling treeless plain that is characteristic of arctic and subarctic regions, consists of black mucky soil with a permanently frozen subsoil, and has a dominant vegetation of mosses, lichens, herbs, and dwarf shrubs
also
: a similar region confined to mountainous areas above timberline
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Merriam-Webster unabridged
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Time Traveler for tundra
The first known use of tundra was circa 1841
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