D defs.my
Entry 1 sense Webster, 1913

Iridal

· I·ri·dal · IPA /ˈʌɪɹɪdəl/
01 a. Of or pertaining to the iris or rainbow; prismatic; as, the iridal colors.
  1. 1.
    Of or pertaining to the iris or rainbow; prismatic; as, the iridal colors.