horse chestnutyoudaoicibaDictYouDict[horse chestnut 词源字典]
"A deciduous tree with large leaves of five leaflets, conspicuous sticky winter buds, and upright conical clusters of white, pink, or red flowers. It bears nuts (conkers) enclosed in a fleshy case", Late 16th century: translating (now obsolete) botanical Latin Castanea equina; its fruit is said to have been an Eastern remedy for chest diseases in horses.[horse chestnut etymology, horse chestnut origin, 英语词源]