/ ˌdɪsɪnˈfekt; NAmE / verb [ vn ]
1.
to clean sth using a substance that kills bacteria :
to disinfect a surface / room / wound
2.
to run a computer program to get rid of a computer virus
► dis·in·fec·tion noun [ U ]
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WORD ORIGIN
late 16th cent. (in the sense rid of infection ): from French désinfecter , from dés- (expressing reversal) + infecter to infect.