WordReference Random House Unabridged Dictionary of American English © 2025
en•do•sym•bi•o•sis
(en′dō sim′bē ō′sis, -bī-),USA pronunciation n. [Biol.]
en•do•sym•bi•ot•ic
(en′dō sim′bē ot′ik, -bī-),USA pronunciation adj.
- Ecologysymbiosis in which one symbiont lives within the body of the other.
- 1935–40; endo- + symbiosis