a substance obtained from mould, used as a drug to treat or prevent infections caused by bacteria; a type of antibiotic 青霉素;盘尼西林 The doctor put me on a course of penicillin. 医生给我开了一个疗程的青霉素。 a strain of bacteria resistant to penicillin 一种对青霉素有抗药性的细菌
Oxford Collocations DictionaryPenicillin is used before these nouns:- allergy
- injection
Word Originfrom the modern Latin genus name Penicillium, from Latin penicillus ‘paintbrush’ (because of the brush-like fruiting bodies) + -in.