• Webster's Revised Unabridged Dictionary
    • n Pillworm (Zoöl) Any myriapod of the genus Iulus and allied genera which rolls up spirally; a galleyworm. See Illust. under Myriapod.
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Century Dictionary and Cyclopedia
    • n pillworm A gally-worm or thousand-legs; a pill-milleped. See Glomeridæ.
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Chambers's Twentieth Century Dictionary
    • n Pillworm pil′wurm the millipede.
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