Source : Webster's Revised Unabridged Dictionary (1913)

Ectodermal \Ec`to*der"mal\, Ectodermic \Ec`to*der"mic\, a.
   (Biol.)
   Of or relating to the ectoderm.

Source : WordNet®

ectodermal
     adj : of or relating to the ectoderm [syn: {ectodermic}]