Definition of Hippocastanaceae
: a family of trees (order Sapindales) having opposite palmately lobed leaves, showy flowers in large clusters, and nutlike seeds encased in a leathery capsule and including the buckeyes
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Origin and Etymology of hippocastanaceae
New Latin, from Hippocastanum, type genus in former classifications (from hipp- + Greek kastanon chestnut) + -aceae
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