[ir-i-dey-shuh s, ahy-ri-]
belonging to the Iridaceae family of plants.
Compare iris family.
Origin of iridaceous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
of, relating to, or belonging to the Iridaceae, a family of monocotyledonous plants, including iris, crocus, and gladiolus, having swordlike leaves and showy flowers
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012