symbiot
/ˈsɪmbaɪɑt/
noun
- An organism that lives in a close, long-term relationship with another organism, often benefiting both.
- In the forest, the fungus acts as a symbiot, helping tree roots absorb water and nutrients.
- Each symbiot in the lichen contributes something the other needs to survive.
- The clownfish is a symbiot that lives safely among the stinging tentacles of a sea anemone.