pillbug

/P IH1 L B AH1 G/
noun
  1. 1

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

Source: https://en.wiktionary.org/wiki/pill%20bug, https://en.wiktionary.org/wiki/pillbug