The Collaborative International Dictionary
Sweet buckeye
Buckeye \Buck"eye`\ (b[u^]k"[imac]`), n.
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(Bot.) A name given to several American trees and shrubs of the same genus ( [AE]sculus) as the horse chestnut.
The Ohio buckeye, or Fetid buckeye, is Aesculus glabra.
Red buckeye is Aesculus Pavia.
Small buckeye is Aesculus paviflora.
Sweet buckeye, or Yellow buckeye, is Aesculus flava.
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A cant name for a native or resident of Ohio. [U.S.]
Buckeye State, Ohio; -- so called because buckeye trees abound there.
WordNet
sweet buckeye
n. a tall and often cultivated buckeye of the central United States