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Related to Horse-chestnut: Aesculus hippocastanum
|n.||1.||(Bot.) The large nutlike seed of a species of Æsculus (Æsculus Hippocastanum), formerly ground, and fed to horses, whence the name. The seed is not considered edible by humans.|
|2.||(Bot.) The tree itself (Aesculus hippocastanum), which was brought from Constantinople in the beginning of the sixteenth century, and is now common in the temperate zones of both hemispheres; it has palmate leaves and large clusters of white to red flowers followed by brown shiny inedible seeds. The native American species is also called buckeye and conker.|
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.