or  na*ïve  adj, na*iv*er  -est  1  :  not previously subjected to experimentation or a particular experimental situation <made the test with rats>   2  :  not having previously used a particular drug (as marijuana)  3  :  not having been exposed previously to an antigen <a immune system>  < T cells>  .
 
 
 
Similar sounding terms:  knife  NF 
 
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