classificatory

from WordNet (r) 3.0 (2006)

classificatory
    adj 1: relating to or involving classification:"classificatory
           criteria"

from The Collaborative International Dictionary of English v.0.48

Classificatory \Clas"si*fi*ca`to*ry\, a.
   Pertaining to classification; admitting of classification. "A
   classificatory system." --Earle.
   [1913 Webster]