[1] : The Collaborative International Dictionary of English v.0.48

classification \clas`sifica"tion\, n. cf. f. classification.
   the act of forming into a class or classes; a distribution
   into groups, as classes, orders, families, etc., according to
   some common relations or affinities.
   1913 webster

   artificial classification. science see under
      artifitial.
      1913 webster
see also:
artificial classification artifitial 

[2] : WordNet (r) 2.0

classification
     n 1: the act of distributing things into classes or categories of
          the same type syn: categorization, categorisation,
          compartmentalization, compartmentalisation, assortment
     2: a group of people or things arranged by class or category
        syn: categorization, categorisation
     3: the basic cognitive process of arranging into classes or
        categories syn: categorization, categorisation, sorting
     4: restriction imposed by the government on documents or
        weapons that are available only to certain authorized
        people ant: declassification
see also:
categorization categorisation compartmentalization compartmentalisation assortment sorting 
declassification 

[3] : Moby Thesaurus II by Grady Ward, 1.0

38 moby thesaurus words for "classification":
   antonomasia, appraisal, assessment, binomial nomenclature,
   biosystematics, biosystematy, categorization, class, evaluation,
   factoring, family, gauging, genus, glossology, grouping,
   identification, kingdom, nomenclature, onomastics, onomatology,
   order, orismology, phylum, place-names, place-naming, polyonymy,
   sifting, sifting out, sorting, sorting out, species, systematics,
   taxonomy, terminology, toponymy, trinomialism, weighing,
   winnowing

Classification >> C Words
Classification, definition of term: Classification
classification_pag1.html

Classification >> C Words
Classification, definition of term: Classification
classification_pag1.html