The Collaborative International Dictionary
Pillworm
Pillworm \Pill"worm`\, n. (Zo["o]l.) Any myriapod of the genus Iulus and allied genera which rolls up spirally; a galleyworm. See Illust. under Myriapod.
Wiktionary
pillworm
n. (context rare English) Any myriapod of the genus (taxlink Iulus genus noshow=1) and allied genera which rolls up spirally; a (vern: galleyworm).