Hypertext Webster Gateway: "tundra"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Tundra \Tun"dra\, n. [Russ.]
One of the level or undulating treeless plains characteristic
of northern arctic regions in both hemispheres. The tundras
mark the limit of arborescent vegetation; they consist of
black mucky soil with a permanently frozen subsoil, but
support a dense growth of mosses and lichens, and dwarf herbs
and shrubs, often showy-flowered.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Tundra \Tun"dra\, n. [Russ., from a native name.]
A rolling, marshy, mossy plain of Northern Siberia.
From WordNet (r) 1.7 (wn)
tundra
n : a vast treeless plain in the arctic regions between the ice
cap and the tree line
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