BioConcepts

allotrophyAllotrophie (ger.)

•   A form of interaction between organisms that is beneficial for one partner and irrelevant for the other. (HWB 2011)  
  category symbiosis see also allolimy

  1949

  The 0+ coaction may be called allotrophy, (feeding the other); and its opposite, O— (starving the other) allolimy

  Haskell, E.F. (1949). A clarification of social science. Main Currents in Modern Thought 7, 45-51: 46.