ˌtrilēˈāsēˌē noun plural
Usage: capitalized
Etymology: New Latin, from Trillium, type genus + -aceae
in some classifications : a small family of herbs (order Liliales) that have perennial rootstocks, entire leaves variously arranged, and often showy flowers of 3 petals and 3 sepals with 6 stamens followed by a globose or 3-lobed berry, comprise the trilliums and closely related plants, and are usually included in the family Liliaceae