(pharmacology) Any substance that can destroy or inhibit the growth of bacteria and similar microorganisms, generally transported by the lymphatic system.

(pharmacology) Of or relating to antibiotics. / (obsolete) Of or relating to the theory that extraterrestrial life does not exist.

plural of antibiotic

In terms of antibiotic effect. / By means of antibiotics.

Of or pertaining to antibiotics.

(pharmacology) Any antibiotic that is active against a wide range of bacteria, especially against both gram-positive and gram-negative bacteria.

plural of broad-spectrum antibiotic

(colloquial, rare) Medicated with antibiotics.