Ir`i*da"ceous (?), I*rid"e*ous (?), a. [From NL. Iris, Iridis, the Iris.] Bot.
Pertaining to, or resembling, a large natural order of endogenous plants (Iridaceae), which includes the genera Iris, Ixia, Crocus, Gladiolus, and many others.
© Webster 1913.