Let's Compare Antibiotic and Probiotic


An antibacterial is an agent that inhibits bacterial growth or kills bacteria.

antibiotic adj : of or relating to antibiotic drugs n : 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}]

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

antibiotic \antibiotic\ adj. 1. of or pertaining to an antibiotic. [WordNet 1.5] 2. having antimicrobial activity; capable of killing microbes. [PJC] -- {antibiotically}, n. [1913 Webster]

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]


Probiotics are live microorganisms that may confer a health benefit on the host. In the past, there were other definitions of probiotics.

Denoting a substance that stimulates the growth of microorganisms, especially those with beneficial properties

Data Sources:

  • antibiotic: WordNet (r) 2.0
  • antibiotic: Moby Thesaurus II by Grady Ward, 1.0
  • antibiotic: The Collaborative International Dictionary of English v.0.44
  • antibiotic: The Collaborative International Dictionary of English v.0.44

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Your Comparisons - Antibiotic And Probiotic