Source : Webster's Revised Unabridged Dictionary (1913)

Epiphytic \Ep`i*phyt"ic\, Epiphytical \Ep`i*phyt"ic*al\, a.
   (Bot.)
   Pertaining to, or having the nature of, an epiphyte. --
   {Ep`i*phyt"ic*al*ly}, adv.

Source : WordNet®

epiphytic
     adj : of or relating to epiphytes