iridine--prophetes.ai

iridine, a. rare.
  (ˈaɪrɪdɪn, -aɪn)
  [f. L. irid- iris 2 + -ine.]
  Rainbow-like; iridescent.

1851 S. Judd Margaret i. xiv. (Ward & Lock) 110 The horned-pout, with its pearly iridine breast and iron-brown back.

Oxford English Dictionary