transmissive

from The Collaborative International Dictionary of English v.0.48

Transmissive \Trans*mis"sive\, a.
   Capable of being transmitted; derived, or handed down, from
   one to another.
   [1913 Webster]

         Itself a sun, it with transmissive light
         Enlivens worlds denied to human sight.   --Prior.
   [1913 Webster]