Source : Webster's Revised Unabridged Dictionary (1913)

Iridize \Ir"i*dize\, v. t. [imp. & p. p. {Iridized}; p. pr. &
   vb. n. {Iridizing}.]
   1. To point or tip with iridium, as a gold pen.

   2. To make iridescent; as, to iridize glass.