1. (

• buckeye ,
• horse_chestnut ,
• conker

) the inedible nutlike seed of the horse chestnut ;

2. (

• horse_chestnut ,
• buckeye ,
• Aesculus_hippocastanum

) tree having palmate leaves and large clusters of white to red flowers followed by brown shiny inedible seeds ;

3. (

• Ohioan ,
• Buckeye

) a native or resident of Ohio ;