Source : WordNet®

fishworm
     n : terrestrial worm that burrows into and helps aerate soil;
         often surfaces when the ground is cool or wet; used as
         bait by anglers [syn: {earthworm}, {angleworm}, {fishing
         worm}, {wiggler}, {nightwalker}, {nightcrawler}, {crawler},
          {dew worm}, {red worm}]