A name given to several American trees and shrubs of the same genus (Æsculus) as the horse chestnut. The Ohio buckeye, or Fetid buckeye, is Æsculus glabra. -- Red buckeye is Æ. Pavia. -- Small buckeye is Æ. paviflora. -- Sweet buckeye, or Yellow buckeye, is Æ. flava.
A cant name for a native in Ohio. [U.S.] Buckeye State, Ohio; -- so called because buckeye trees abound there.
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