[TOP]penicillin peni·cil·lin / ˌpeniˈsilin / noun əu] 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 [TOP]penicillin pen·i·cil·lin / ˌpɛnɪˈsɪlɪn ; ˌpenəˈsɪlən / noun [U] 1. a type of medicine that is used to treat infections caused by BACTERIA 青霉素，盘尼西林 [TOP]penicillin[ˌpen.ə'sɪl.ɪn] specialized noun uncountable » a type of medicine which kills bacteria; a type of antibiotic 盘尼西林，青霉素 [TOP]penicillin
1.N-UNCOUNT 不可数名词 青霉素；盘尼西林Penicillin is a drug that kills bacteria and is used to treat infections.