A pharmacologically active compound produced by growing microorganisms which kill or inhibit growth of other microorganisms. Penicillin; Cephalosporins; Antibiotics.
(=> (Antibiotic ?Self) (And (Exists (?A) (And (Production-Host ?Self ?A) (Microorganism ?A) (Exists (?B) (And (Embodies ?A ?B) (Growth ?B))))) (Exists (?C) (And (Inhibits ?Self ?C) (Growth ?C) (Exists (?D) (And (Embodied-In ?C ?D) (Microorganism ?D)))))))