ˌsɪmbɪˈəusɪs n. (pl. symbioses) 1 a an
interaction between two different organisms
living in close
physical association, usu. to
the advantage of
both (cf. ANTIBIOSIS). b an
instance of
this. 2 a a mutually advantageous association or
relationship between persons. b an instance of this. øøsymbiotic adj. symbiotically adv. [mod.L f. Gk sumbiosis a living
together f. sumbioo live together, sumbios companion (as
SYN-, bios life)]