a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections;
\\\"when antibiotics were first discovered they were called wonder drugs\\\"
Adjective:
of or relating to antibiotic drugs
造句
用作形容詞(adj.)
Kimchi has antibiotic functions as lactic acid bacteria produced in the process of fermentation suppresses growth of harmful bacteria. 由于在發酵過程中產生的乳酸菌抑制了有害菌的生長，所以泡菜有抗生素作用。
When rhinosinusitis patients were not responsive to empiric antibiotic treatment in the Outpatient Clinic, specimens were taken from the middle meatus with cotton-tipped sticks. 在門診中，當鼻腔鼻竇炎病患對抗生素治療無效時，我們利用棉簽從中鼻道取標本做嗜氧菌及厭氧菌的培養來決定正確的抗生素。
用作名詞(n.)
A new potent antibiotic will shortly be available. 一種新的高效抗生素不久將在市面銷售。