The Collaborative International Dictionary of English v.0.48:
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. [1913 Webster]WordNet (r) 3.0 (2006):
epiphytic adj 1: of or relating to epiphytes