'nightcrawler' definitions:

Definition of 'nightcrawler'

From: WordNet
noun
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, fishworm, fishing worm, wiggler, nightwalker, nightcrawler, crawler, dew worm, red worm]

Definition of 'nightcrawler'

From: GCIDE
  • nightcrawler \nightcrawler\ n. A terrestrial worm that burrows into and helps aerate soil; an earthworm. It often surfaces when the ground is cool or wet, and is used as bait by anglers. The term is used mostly in the northern and western U. S.
  • Syn: earthworm, angleworm, fishworm, fishing worm, wiggler, nightwalker, dew worm, red worm. [WordNet 1.5]