tundra

[tuhn-druh, toon-]
noun
one of the vast, nearly level, treeless plains of the arctic regions of Europe, Asia, and North America.

Origin:
1835–45; < Russian túndra < Lappish; compare Kola Lappish tūndar flat elevated area

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To tundras
Collins
World English Dictionary
tundra (ˈtʌndrə)
 
n
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
 
[C19: from Russian, from Lapp tundar hill; related to Finnish tunturi treeless hill]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

tundra
an Arctic steppe, 1841, from Rus. tundra, from Lappish tundar "elevated wasteland."
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Science Dictionary
tundra   (tŭn'drə)  Pronunciation Key 
A cold, treeless, usually lowland area of far northern regions. The lower strata of soil of tundras are permanently frozen, but in summer the top layer of soil thaws and can support low-growing mosses, lichens, grasses, and small shrubs.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
American Heritage
Cultural Dictionary

tundra definition


A land area near the North Pole where the soil is permanently frozen a few feet underground.

Note: There are no trees on the tundra: the vegetation is primarily lichens and mosses.
Note: Tundra is widespread in Lapland and in the far northern portions of Alaska, Canada, and the Soviet Union.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Example sentences for tundras
A severe threat to the tundras, specifically to the permafrost, is global warming.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature