Tundra is one of the large flat areas of land in the north of Europe, Asia, and America. The ground below the top layer of soil is always frozen and no trees grow there.
tundra in British English
(ˈtʌndrə)
noun
a.
a vast treeless zone lying between the ice cap and the timberline of North America and Eurasia and having a permanently frozen subsoil
b.
(as modifier)
tundra vegetation
Word origin
C19: from Russian, from Lapp tundar hill; related to Finnish tunturi treeless hill
tundra in American English
(ˈtʌndrə; ˈtʊndrə)
noun
any of the vast, nearly level, treeless plains of the arctic regions