- 1to make a disease or an illness spread to a person, an animal, or a plant infect somebody/something It is not possible to infect another person through kissing. infect somebody/something with something people infected with HIV
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- 2infect something (with something) [usually passive] to make a substance contain harmful bacteria that can spread disease synonym contaminate eggs infected with salmonella
- 3infect something (with something) to make a computer virus spread to another computer or program
- 4infect somebody (with something) to make someone share a particular feeling She infected the children with her enthusiasm for music. The whole room was soon infected by his laughter.
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NAmE//ɪnˈfɛkt//
Verb Forms present simple I / you / we / they infect he / she / it infects
past simple infected
-ing form infecting
Check pronunciation: infect