You searched for: “osmotrophic”
osmotrophic (adjective) (not comparable)
A description of the acquisition of food by absorption: An osmotrophic process can be exemplified by fungi.

Osmotrophic organisms feed on dissolved organic molecules absorbed from the outside environmenT.

Through the osmotrophic process, the feeding of organisms by "absorbing" dissolved food takes place from the surrounding environment. Membrane pumps and pinocytosis are the most likely routes of food uptake.