from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A small terrestrial isopod crustacean of the genus Armadillidium closely related to the sow bug and having a convex, segmented, flexible body enabling it to curl into a ball when disturbed. In this sense also called roly-poly.
  • n. A sow bug.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of very many terrestrial crustaceans, of the family Armadillidiidae, including the woodlice, that can roll themselves up into a protective ball

from the GNU version of the Collaborative International Dictionary of English

  • n. any terrestrial isopod of the genus Armadillo, having the habit of rolling itself into a ball when disturbed. Called also pill wood louse.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. small terrestrial isopod with a convex segmented body that can roll up into a ball


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  • A.k.a. doodlebug, holy moly.

    June 24, 2009