: a mode of life in which one organism so depends on another that it cannot flourish unless the latter precedes and influences the environment favorably

Browse Nearby Words

Cite this Entry

“Metabiosis.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/metabiosis. Accessed 8 Jul. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!