IPA: /ɪnˈfɛkʃən/
KK: /ɪnˈfɛkʃən/
A condition caused by harmful germs or bacteria that invade the body, leading to illness.
The doctor diagnosed her with a serious infection that required immediate treatment.
Infection → It is formed from "in-" (meaning into) and "facere" (meaning to make or do). The word describes the process of making something unhealthy or introducing disease into the body.
Think of something being 'made unhealthy' as it is introduced 'into' the body — that's what infection means.