tumbleweed – מילון אנגלי-אנגלי
tumbleweed
n.
any of several species of weed whose branches detach from the stalk and blow about in the wind
Tumbleweed
A
tumbleweed is a structural part of the above-ground anatomy of a number of species of
plants, a
diaspore that, once it is mature and dry,
detaches from its root or stem, and
tumbles away in the
wind. In most such species the tumbleweed is in effect the entire plant apart from the root system, but in other plants a hollow fruit or an
inflorescence might serve the function. Tumbleweed species occur most commonly in
steppe and
arid ecologies, where frequent wind and the open environment permit rolling without prohibitive obstruction.
tumbleweed
Noun
1. any plant that breaks away from its roots in autumn and is driven by the wind as a light rolling mass
(hypernym) weed
2. prickly bushy Eurasian plant; a troublesome weed in central and western United States
(synonym) Russian thistle, Russian tumbleweed, Russian cactus, Salsola kali tenuifolia
(hypernym) shrub, bush
3. bushy annual weed of central North America having greenish flowers and winged seeds
(synonym) winged pigweed, Cycloloma atriplicifolium
(hypernym) shrub, bush
(member-holonym) Cycloloma, genus Cycloloma
4. bushy plant of western United States
(synonym) Amaranthus albus, Amaranthus graecizans
(hypernym) amaranth
Tumbleweed
(n.)
Any plant which habitually breaks away from its roots in the autumn, and is driven by the wind, as a light, rolling mass, over the fields and prairies; as witch grass, wild indigo, Amarantus albus, etc.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
About
tumbleweed
tumbleweed- danh từ
- cây cỏ lăn (loại cây giống như bụi mọc ở những vùng sa mạc Bắc Mỹ, về mùa thu bị héo đi, bong ra và cuộn lăn đi theo gió)
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