cytobiont

plural cytobionts

1. biologyAn organism involved in cytobiosis.

   In the more typical examples of cytobiosis described later, the cytobionts are located within the cytoplasm in small vacuoles or, more rarely, embedded within the cytoplasm itself.

   1990, Gerard M. Capriulo, Ecology of Marine Protozoa, page 328

   1 more example

   There is little or no probability of a nonphotosynthetic eukaryotic cytobiont existing in nonparasitic cytobiosis with a nonphotosynthetic host because of too great a similarity, and therefore competition, in nutritional requirements.

   1983, Kwang W. Jeon, Intracellular Symbiosis, page 4