Wordnet 3.0
VERB (1)
1. 
 destroy microorganisms or pathogens by cleansing; 
- Example: "disinfect a wound"
The Collaborative International Dictionary of English v.0.48:
Disinfect \Dis`in*fect"\, v. t. [imp. & p. p. Disinfected; p.
   pr. & vb. n. Disinfecting.]
   To free from infectious or contagious matter; to destroy
   putrefaction; to purify; to make innocuous.
   [1913 Webster]
         When the infectious matter and the infectious matter
         and the odoriferous matter are one . . . then to
         deodorize is to disinfect.               --Ure.
   [1913 Webster]
WordNet (r) 3.0 (2006):
disinfect
    v 1: destroy microorganisms or pathogens by cleansing;
         "disinfect a wound" [ant: infect, taint]