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From The Collaborative International Dictionary of English v.0.44 [gcide]:
antibiotic \an'ti*bi*ot"ic\ n.
1. A chemical substance derived from a mold or bacterium that kills microorganisms and cures infections.
Syn: wonder drug [WordNet 1.5]
2. any chemical substance having therapeutically useful antibacterial or antifungal activity; -- used commonly but loosely for synthetic as well as natural antimicrobial agents. [PJC]
From The Collaborative International Dictionary of English v.0.44 [gcide]:
antibiotic \antibiotic\ adjective
1. of or pertaining to an antibiotic. [WordNet 1.5]
2. having antimicrobial activity; capable of killing microbes. [PJC] -- {antibiotically}, noun
From WordNet (r) 2.0 [wn]:
antibiotic
adjective: of or relating to antibiotic drugs
noun: a chemical substance derivable from a mold or bacterium that kills microorganisms and cures infections; "when antibiotics were first discovered they were called wonder drugs" [syn: {antibiotic drug}]
From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:
71 Moby Thesaurus words for "antibiotic": Chloromycetin, Terramycin, acaricide, actinomycin, alexipharmic, amphotericin, antacid, anthelmintic, antidotal, antimicrobial, antipyretic, antiseptic, antitoxic, bacitracin, bacteriostatic, bug bomb, carbamate insecticide, carbomycin, chemosterilant, chlorinated hydrocarbon insecticide, chlortetracycline, cloxacillin, contact poison, defoliant, dihydrostreptomycin, disinfectant, eradicant, erythromycin, febrifugal, fradicin, fumigant, fungicide, germicide, gramicidin, griseofulvin, herbicide, insect powder, insecticide, methicillin, microbicide, miticide, mitomycin, organic chlorine, organic phosphate insecticide, penicillin, pesticide, poison, rat poison, roach paste, roach powder, rodenticide, stomach poison, streptomycin, streptothricin, subtilin, sulfa, systemic, systemic insecticide, tetracycline, toxic, toxicant, toxin, tylocin, tyrothricin, vancomycin, venin, venom, vermicide, viomycin, virus, weed killer
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