|träfə|jenik adjective
Etymology: troph- + -genic
1. : brought about by or resulting from differences in food or feeding rather than genetically determined
the various castes of social insects are usually held to be trophogenic in origin
— compare blastogenic
2. also tro·phog·e·nous trōˈfäjənəs
[ troph- + -genous ]
: of, relating to, or being the upper level in a lake in which inorganic matter is converted to organic through photosynthetic activity — compare tropholytic