Source : Webster's Revised Unabridged Dictionary (1913)

Holophytic \Hol`o*phyt"ic\, a. [Holo + Gr.? a plant.]
   Wholly or distinctively vegetable.

   {Holophytic nutrition}, that form of nutrition,
      characteristic of vegetable organisms, in which carbonic
      acid, ammonia, and nitrates are absorbed as food, in
      distinction from the animal mode of nutrition, by the
      ingestion of albuminous matter.

Source : WordNet®

holophytic
     adj : obtaining nourishment as green plants do [ant: {holozoic}]