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See more synonyms for buckeye on Thesaurus.com
noun, plural buck·eyes.
  1. any of various trees or shrubs of the genus Aesculus, as A. glabra (Ohio buckeye), having palmate leaves, gray, scaly bark, and bell-shaped greenish-yellow flowers in upright clusters: the state tree of Ohio.
  2. the brown nut of any of these trees.
  3. (initial capital letter) a native or inhabitant of Ohio (used as a nickname).
  4. a butterfly, Precis lavinia, having dark-brown wings with purple or red eyespots.
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Origin of buckeye

1755–65, Americanism; buck1 stag + eye, orig. used to designate def. 1, in allusion to the look of the seed
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for buck-eye

Historical Examples

  • Ohio is called the "Buck-eye" state and is named after this tree.


    Alan Douglas

  • The leaves of the Buck-eye are five-fingered, while those of the tree commonly called the Horse Chestnut are seven-fingered.


    Alan Douglas

  • She was soon opposite the lawn; and, sure enough, proved to be what Lucien had said she was—the mail-steamer “Buck-eye.”

    The Boy Hunters

    Captain Mayne Reid

  • Its favourite haunt is among the red and scentless flowers of the buck-eye, or the large trumpet-shaped blossoms of the bignonia.

    The Quadroon

    Mayne Reid

  • On the eastern shore of Maryland and Virginia the dugout is made into a sail-boat called the buck-eye, or bug-eye.

    Boat-Building and Boating

    Daniel Carter Beard

British Dictionary definitions for buck-eye


  1. any of several North American trees of the genus Aesculus, esp A. glabra (Ohio buckeye), having erect clusters of white or red flowers and prickly fruits: family HippocastanaceaeSee also horse chestnut
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for buck-eye


"American horse chestnut," 1763, said to be so called from resemblance of the nut to a stag's eye. See buck (n.1) + eye (n.). Meaning "native of Ohio" is attested since 1822.

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Online Etymology Dictionary, © 2010 Douglas Harper