The prefix syn is derived from the Greek word meaning "together," while bios is derived from the word "life." So symbiosis is defined as "living together." Symbiotic organisms rely on one another, such as the clown fish and anemone that defend each other from ocean predators.
Synonyms: Cooperative relationship or interaction, advantageous relationship, mutualism, reciprocity
Related Terms: Symbiotic relationship, Symbiotic microorganisms