symbion
/ˈsɪmbaɪˌɑn/
noun
- An organism that lives in a close, long-term relationship with another organism of a different species.
- The clownfish is a well-known symbion of the sea anemone.
- The bacteria in our gut act as a symbion, helping us digest food.
- In the ocean, many corals rely on a tiny algae symbion for energy.
Antonyms