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English definition of “infect”

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verb [T]  /ɪnˈfekt/ us  
to cause disease in someone by introducing organisms such as bacteria or viruses: Mosquitoes can infect people with malaria. fig. Fear of an attack infected the entire city.
adjective [not gradable]  /ɪnˈfek·tɪd/ us  
an infected toe
noun [C/U]  /ɪnˈfek·ʃən/ us  
[C] a sinus infection
(Definition of infect from the Cambridge Academic Content Dictionary © Cambridge University Press)
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