DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   blade
       n 1: especially a leaf of grass or the broad portion of a leaf
            as distinct from the petiole [syn: blade, leaf blade]
       2: a dashing young man; "gay young blades bragged of their
          amorous adventures"
       3: something long and thin resembling a blade of grass; "a blade
          of lint on his suit"
       4: a cutting or thrusting weapon that has a long metal blade and
          a hilt with a hand guard [syn: sword, blade, brand,
          steel]
       5: a cut of beef from the shoulder blade
       6: a broad flat body part (as of the shoulder or tongue)
       7: the part of the skate that slides on the ice
       8: flat surface that rotates and pushes against air or water
          [syn: blade, vane]
       9: the flat part of a tool or weapon that (usually) has a
          cutting edge