allotrophic
/ˌalə(ʊ)ˈtrɒfɪk/ /ˌalə(ʊ)ˈtrəʊfɪk/adjective
1 Chemistry = allotropic. Now rare.
2 Biology. Of an organism: feeding on other organisms; dependent to a large degree on organic compounds as a source of energy. rare.
3 Ecology. Of a lake, stream, etc.: receiving its organic matter mainly or wholly from sources external to the body of water.
Origin
Mid 19th century. From allo- + -trophic. In sense 1 apparently an error for allotropic.