DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   bulk
       n 1: the property resulting from being or relating to the
            greater in number of two parts; the main part; "the
            majority of his customers prefer it"; "the bulk of the work
            is finished" [syn: majority, bulk] [ant: minority]
       2: the property of something that is great in magnitude; "it is
          cheaper to buy it in bulk"; "he received a mass of
          correspondence"; "the volume of exports" [syn: bulk,
          mass, volume]
       3: the property possessed by a large mass
       v 1: stick out or up; "The parcel bulked in the sack"
       2: cause to bulge or swell outwards [syn: bulge, bulk]