photoorganotrophy
/ˌfəʊtəʊɔːɡəˈnɒtrəfi/Biology
noun
A form of phototrophic nutrition, characteristic of certain microorganisms, in which one or more of a variety of organic compounds are oxidized in the course of photosynthesis. Opposed to photolithotrophy.
Origin
1940s; earliest use found in Cold Spring Harbor Symposium on Quantitative Biology. From photo- + organo- + -trophy.