ˌ ̷ ̷(ˌ) ̷ ̷ˌbīˈōsə̇s noun
( plural antibio·ses -ōˌsēz)
Etymology: New Latin, from anti- (I) + -biosis
: antagonistic association between organisms to the detriment of one of them or between one organism and a metabolic product of another (as that existing between certain bacteria and penicillin)