Dictionary Home »
Webster's New World College Dictionary » antibiotic
antibiotic
antibiotic definition
☆ anti·bi·otic (-bī ät′ik, -bē-)
adjective
- of antibiosis
- destroying bacteria and other microorganisms or inhibiting their growth
- of antibiotics
noun
any of certain chemical substances produced by various microorganisms, specif. bacteria, fungi, and actinomycetes, and having the capacity, in dilute solutions, to inhibit the growth of or to destroy bacteria and other microorganisms: the antibiotics, including penicillin, streptomycin, and tetracycline, are used in the treatment of various infectious diseases
Browse dictionary definitions near antibiotic
Also Mentioned In