Longman Dictionary of Contemporary English homepage

Topic: COMPUTERS

Date: 1300-1400
Language: Latin
Origin: , past participle of inficere 'to dip in, stain'

infect

verb
     
in‧fect [transitive]
1MI to give someone a disease:
People with the virus may feel perfectly well, but they can still infect others.
infect with
the number of people infected with HIV
2MI [usually passive] to make something contain something harmful that gives people a disease
infect with
Eggs known to be infected with salmonella were allowed to go on sale.
3MI if a feeling or interest that you have infects other people, it makes them begin to feel the same way or have the same interest:
Lucy's enthusiasm soon infected the rest of the class.
4TD if a virus infects your computer or disks, it changes or destroys the information in them
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