The Collaborative International Dictionary of English v.0.48:

Pavonine \Pav"o*nine\, a. [L. pavoninus, fr. pavo a peacock. See
   Peacock.]
   1. (Zool.) Like, or pertaining to, the genus Pavo.
      [1913 Webster]

   2. Characteristic of a peacock; resembling the tail of a
      peacock, as in colors; iridescent. --P. Cleaveland.
      [1913 Webster]