tumbleweedPronunciation: /ˈtʌmb(ə)lwiːd/Definition of tumbleweed noun [mass noun] North American & Australian/NZ a plant of arid regions which breaks off near the ground in late summer, forming light globular masses which are tumbled about by the wind. Genera Salsola (family Chenopodiaceae) and Amaranthus (family Amaranthaceae) tumbleweed in other Oxford dictionaries Definition of tumbleweed in the US English dictionary
