Definition of "infect" in English

verb

1. (transitive) To bring (the body or part of it) into contact with a substance that causes illness (a pathogen), so that the pathogen begins to act on the body; (of a pathogen) to come into contact with (a body or body part) and begin to act on it.

   • Not everyone will be infected when an epidemic strikes.

2. (transitive) To contaminate (an object or substance) with a pathogen.

3. (transitive) To make somebody enthusiastic about one's own passion, or to communicate a feeling to others, or a feeling communicating itself to others.

   • Her passion for dancing has infected me.

adjective

1. (obsolete) Infected.

adjective

1. (rare, grammar, of a tense or verb form) Representing an action not yet completed.