screw thread on a gear with the teeth of a worm wheel or rack
a software program capable of reproducing itself that can spread from one computer to the next over a network
"worms take advantage of automatic file sending and receiving features found on many computers"
a person who has a nasty or unethical character undeserving of respect
- dirt ball
any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes
also many insect larvae
to move in a twisting or contorted motion, (especially when struggling)
"The prisoner writhed in discomfort"
"The child tried to wriggle free from his aunt's embrace"