You searched for: “symbiont
symbiont
An organism participating in a symbiotic relationship.

The term tends to be used more in reference to mutualists (relation between two different species of organisms that are interdependent; each gains benefits from the other) than to parasites, commensals (relationship in which one species derives some benefit while the other is unaffected), or other types of symbionts.

Word Entries at Get Words: “symbiont
symbiont
An organism that lives in symbiosis (dependent relationship) with another species.
This entry is located in the following unit: Ant and Related Entomology Terms (page 21)