cyr·il·la·ce·ae \ˌsirəˈlāsēˌē\noun plural Usage: capitalized Etymology: New Latin, from Cyrilla, type genus + -aceae : a family of shrubs and trees (order Sapindales) with entire coriaceous leaves, small white flowers in racemes and capsular fruit • cyr·il·la·ceous\| ̷ ̷ ̷ ̷|lāshəs\adjective