(of a disease or disease-causing organism) liable to be transmitted to people, organisms, etc. through the environment (疾病,致病生物体)易传染的,传染性的 ■liable to spread infection 易传播疾病的 the dogs may still be infectious. 这些狗也许仍容易传播疾病。 ■likely to spread or influence others in a rapid manner 有感染力的,具影响力的 her enthusiasm is infectious. 她的热情具有感染力。
派生 infectiously adverb infectiousness noun 语源
mid 16th cent.: from infection + -ous
用法
On the differences in meaning between infectious and contagious, see usage at contagious