(aviation) A large, low-pressure tyre, used on light aircraft on rough terrain.

A very cold dry-climate vegetation type consisting of mostly treeless open herbaceous vegetation, widespread during Pleistocene times at mid-latitudes of Eurasia and during some phases in North America.

plural of tundra tyre

Anser serrirostris, a goose that breeds in northern Siberia.

(zoology) A North American subspecies of gray wolf native to the barren grounds of the Arctic coastal tundra region.

plural of Alaskan tundra wolf