a substance, for example penicillin, that can destroy or prevent the growth of bacteria and cure infections 抗菌素,抗生素(如青霉素) Extra ExamplesTopics Social issuesb2I got an antibiotic for my ear infection. 我买了治疗耳部感染的抗生素。 Meat from animals that receive antibiotics could not be classified as organic. 注射过抗生素的动物的肉不能归为有机食品。
Oxford Collocations Dictionaryadjective- effective
- oral
- broad-spectrum
- …
- course
- dose
- be on
- take
- be given
- …
- antibiotic for
Word Originmid 19th cent. (in the sense ‘doubting the possibility of life in a certain environment’): from anti- + Greek biōtikos ‘fit for life’ (from bios ‘life’).