To infect is to introduce a disease into a person or thing. When you infect yourself with a virus, you are putting yourself at risk for getting sick.

  • The virus is highly contagious, and can infect anyone who comes in contact with it.

  • The virus was able to infect the computer system, and caused a lot of damage.

Definition of infecting


To bring into contact with a substance that causes illness (a pathogen).


To make somebody enthusiastic about one's own passion.

Nearby Words

infecting Pronunciation in a video (2)

Example Sentences for infecting

  • 1

    Episodes are triggered by febrile illness, infection, or fasting.

  • 2

    The virus may have already crossed the placenta to infect the fetus.

  • 3

    Feral populations can also pass on transmissible infections to domestic herds.

  • 4

    It infects the remainder of the pages.

  • 5

    The infection is preventable by vaccination.

  • 6

    The infection is very contagious.

  • 7

    The origin of the infection is unknown.

  • 8

    It is the result of an untreated syphilis infection.

  • 9

    Multiple infections of the erythrocyte are uncommon.

  • 10

    Infection is related to the ingestion of seafood.