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Antibiotic   /ˌæntibiˈɑtɪk/  /ˌæntaɪbaɪˈɑtɪk/   Listen
noun
antibiotic  n.  
1.
A chemical substance derived from a mold or bacterium that kills microorganisms and cures infections.
Synonyms: wonder drug
2.
Any chemical substance having therapeutically useful antibacterial or antifungal activity; used commonly but loosely for synthetic as well as natural antimicrobial agents.


adjective
antibiotic  adj.  
1.
Of or pertaining to an antibiotic.
2.
Having antimicrobial activity; capable of killing microbes.





Collaborative International Dictionary of English 0.48


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"Antibiotic" Quotes from Famous Books



... Martian medicine and finding that his Earth courses were mostly useless. No wonder the villagers distrusted Lobby doctors. Doc had his own little laboratory where he had managed to start making Mars-normal penicillin—a primitive antibiotic, but ...
— Badge of Infamy • Lester del Rey


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