ˌirəˈdāsēˌē, ˌīr- noun plural
Usage: capitalized
Etymology: New Latin, from Irid-, Iris, type genus + -aceae
: a family of perennial herbs (order Liliales) with usually only basal ensiform leaves and flowers in racemes or panicles that are subtended individually or in clusters by two spathose bracts and have the perianth petaloid and the ovary inferior