ˌhipəˌkastəˈnāsēˌē noun plural
Usage: capitalized
Etymology: New Latin, from Hippocastanum, type genus in former classifications (from hipp- + Greek kastanon chestnut) + -aceae
: 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