Webster's Revised Unabridged Dictionary · 1913

allotrophic

allotrophic (al`lo*trof"ik) , adjective

[Greek 'a`llos other + trophic.]

(a)
(Physiology) Changed or modified in nutritive power by the process of digestion.
(b)
(Physiology) Dependent upon other organisms for nutrition; heterotrophic; -- said of plants unable to perform photosynthesis, as all saprophytes; -- opposed to autotrophic.