An earthworm, in particular one used as fishing bait.
- ‘A popular angling bait, this species has a variety of common names including lob and dew worm, and night crawler.’
- ‘The declared number of dew worms exported to the United States was about 500 million in 1978.’
- ‘The fishermen use dew worms which are collected during the night after the rain by the light of a hand-lamp.’
- ‘It would be a shame to get rid of the dew worms because their activity aerates the soil and their castings are valuable fertilizer.’
- ‘In addition, fertilizers and even some plastics can be toxic to dew worms and African night crawlers.’
Old English deaw-wyrm ringworm; compare with East Frisian dauworm, denoting both ringworm and the earthworm.