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noun as·pen \ˈas-pən\

: a kind of tree whose leaves move easily when the wind blows

Full Definition of ASPEN

:  any of several poplars (especially Populus tremula of Europe and P. tremuloides and P. grandidentata of North America) with leaves that flutter in the lightest wind because of their flattened petioles

Origin of ASPEN

Middle English, of an aspen, from asp aspen, from Old English æspe; akin to Old High German aspa aspen, Russian osina
First Known Use: 1593
ASPEN Defined for Kids


noun as·pen \ˈa-spən\

Definition of ASPEN for Kids

:  a poplar tree whose leaves move easily in the breeze
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