Definition of allotrophic in US English:



  • 1Chemistry= "allotropic". Now rare.

  • 2Biology. Of an organism: feeding on other organisms; dependent to a large degree on organic compounds as a source of energy. rare.

  • 3Ecology. Of a lake, stream, etc.: receiving its organic matter mainly or wholly from sources external to the body of water.


Mid 19th century. From allo- + -trophic. In sense 1 apparently an error for allotropic.