\Al`lo*troph"ic\, a. [Gr. ? other + trophic.]
(a) (Physiol.) Changed or modified in nutritive power by the
    process of digestion.
(b) (Plant Physiol.) Dependent upon other organisms for
    nutrition; heterotrophic; -- said of plants unable to
    perform photosynthesis, as all saprophytes; -- opposed to
    {autotrophic}.