Iridal

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Iridal \I"ri*dal\ (?; 277), a. [L. iris, iridis, rainbow. See
     {Iris}.]
     Of or pertaining to the iris or rainbow; prismatic; as, the
     iridal colors. --Whewell.
     [1913 Webster]