1. any of various poplars, as Populus tremula, of Europe, and P. tremuloides (quaking aspen) or P. alba (white aspen) of America, having soft wood and alternate ovate leaves that tremble in the slightest breeze. adjective
2. of or relating to the aspen.
3. trembling or quivering, like the leaves of the aspen.
"technologies can be aspen."
"institutes can be aspen."
"trees can be aspen."
"stocks can be aspen."
"silvers can be aspen."
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