Meanings
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1
noun
a poplar tree whose leaves tremble readily because they grow on flattened stalks
Even in the light breeze, the leaves of the aspen fluttered constantly.
Thesaurus
Etymology
From Middle English aspen, originally an adjective, from Old English æspen ("of the aspen") and æspe ("aspen tree"). The tree is often associated with trembling because its flattened leaf stalks move in very light wind.