as·pen
(aspən)
(aspən)n.
Any of various trees of the genus Populus having leaves that flutter readily in the wind because of their flattened leafstalks.
[Middle Englishaspe, fromOld Englishæspe.]
aspenquaking aspens
Populus tremuloides
- protist
- protistan
- protistology
- protium
- proto-
- Proto-Algonquian
- protoceratops
- protocol
- protocolar
- protocolary
- protoctist
- protoderm
- protodermal
- protogalaxy
- Proto-Germanic
- protogynous
- protogyny
- protohistorian
- protohistoric
- protohistory
- protohuman
- Proto-Indo-European
- protolanguage
- protolithic
- protomartyr