tro·pae·o·la·ce·ae \ˌtrōpēōˈlāsēˌē\noun plural Usage: capitalized Etymology: New Latin, from Tropaeolum, type genus + -aceae : a family of plants (order Geraniales) coextensive with the genus Tropaeolum • tro·pae·o·la·ceous\| ̷ ̷ ̷ ̷ ̷ ̷|lāshəs\adjective