DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   inclusion
       n 1: the state of being included [ant: exclusion]
       2: the relation of comprising something; "he admired the
          inclusion of so many ideas in such a short work" [syn:
          inclusion, comprehension]
       3: any small intracellular body found within another
          (characteristic of certain diseases); "an inclusion in the
          cytoplasm of the cell" [syn: inclusion body, cellular
    inclusion, inclusion]
       4: the act of including