D defs.my
Entry 2 senses Webster, 1913

Buckeye

/(bŭk"ī`)/ · Buck·eye · IPA /ˈbʌkaɪ/
01 n. A name given to several American trees and shrubs of the same genus (Æsculus) as the horse chestnut.
  1. 1.
    A name given to several American trees and shrubs of the same genus (Æsculus) as the horse chestnut.(Bot.)
  2. 2.
    A cant name for a native or resident of Ohio.[U.S.]
Phrases & compounds
The Ohio buckeye — is Aesculus glabra.
Red buckeye — is Aesculus Pavia.
Small buckeye — is Aesculus paviflora.
Sweet buckeye — is Aesculus flava.
Buckeye State — Ohio; -- so called because buckeye trees abound there.