DuckCorp Dico

Found one definition

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   Lugworm \Lug"worm`\, n. [1st lug + worm.] (Zool.)
      A large marine annelid (Arenicola marina) having a row of
      tufted gills along each side of the back. It is found
      burrowing in sandy beaches, both in America and Europe, and
      is used for bait by European fishermen. Called also
      lobworm, and baitworm.
      [1913 Webster]