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How to sign: 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
How to sign: 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";
Categories: malevolent program