- (n.) 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.
- (n.) A rolling, marshy, mossy plain of Northern Siberia.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). tundra. Retrieved September 24, 2026, from http://smartdefine.org/tundra/definitions/2075460 |
| Chicago | Webster's. 2011. "tundra" http://smartdefine.org/tundra/definitions/2075460 (accessed September 24, 2026). |
| Harvard | Webster's 2011, tundra, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/tundra/definitions/2075460>. |
| MLA | Webster's. "tundra" 28 May 2011. Web. 24 September 2026. <http://smartdefine.org/tundra/definitions/2075460> |