Bot. [said to be f. BUCK sb.1 + EYE; see quot. 1841.]

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  1.  The American Horse-chestnut (Æsculus glabra).

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1789–96.  Morse, Amer. Geog., I. 636. The buckeye … is the horse chesnut of Europe.

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1841.  Mrs. Loudon, 1st Bk. Bot. (1845), 25. Called buck-eye … from the hilum of the fruit having the appearance of a stag’s eye.

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  2.  U.S. colloq. A native of Ohio, the ‘Buckeye State,’ in which the Æsculus glabra abounds.

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