Search Result for "antibiosis": 
Wordnet 3.0

NOUN (1)

1. an association between organisms that is harmful to one of them or between organisms and a metabolic product of another; 



WordNet (r) 3.0 (2006):

antibiosis
    n 1: an association between organisms that is harmful to one of
         them or between organisms and a metabolic product of
         another